3D Anchor System Guide
3D Anchor System Guide
3D-VERSION 08-2013
3D SLOT-ANCHOR SYSTEM
                                                                                                                   TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                                               3D-VERSION 08-2013
CONTENTS:
INTRODUCTION ........................................................................................................................................................ 4
PRODUCTS RANGE.................................................................................................................................................. 4
TECHNICAL INFORMATION – CHOOSING TYPE OF ANCHOR ........................................................................... 6
   SAFETY RULES ..................................................................................................................................................... 6
   LOAD CAPACITY ................................................................................................................................................... 6
CHARACTERISTICS ............................................................................................................................................... 11
   T SLOT ANCHOR ................................................................................................................................................. 11
   P- SLOT-ANCHOR ............................................................................................................................................... 23
   O-EYE- ANCHOR ................................................................................................................................................. 23
   TKA-TILT SLOT-ANCHOR ................................................................................................................................... 24
   TSG – OFFSET ANCHOR .................................................................................................................................... 26
   TKS-SLOT ANCHOR ............................................................................................................................................ 28
   TPA – PLATE ANCHOR ....................................................................................................................................... 30
LIFTING CLUTCHES TH2 AND THR2 .................................................................................................................... 31
3D LIFTING SYSTEM MAINTENANCE................................................................................................................... 33
ATTACHMENT OF THE SLOT - ANCHORS IN CONCRETE ................................................................................ 35
RECESS FORMERS ................................................................................................................................................ 36
   RB – STANDARD RUBER RECESS FORMER ................................................................................................... 36
   SRB – NARROW RUBBER RECESS FORMER .................................................................................................. 36
   RBK – TKA RUBBER RECESS FORMER ........................................................................................................... 36
   RBP – RUBBER RECESS FORMER ................................................................................................................... 37
   RBP PU – POLYETHYLENE RECESS FORMER ............................................................................................... 37
   MPB – MAGNETIC RECESS FORMER ............................................................................................................... 37
   SBK – STEEL RECESS FORMER ....................................................................................................................... 38
   SBKM – STEEL RECESS FORMER WITH MAGNET ......................................................................................... 38
   RR – RUBBER RING ............................................................................................................................................ 38
FIXING ACCESORIES FOR THE RUBBER RECESS FORMERS ........................................................................ 39
   IP – FIXING PLATE .............................................................................................................................................. 39
   IPD – FIXING PLATE WITH THREAD ROD / IPDV – FIXING PLATE WITH THREAD ROD AND WING NUT . 39
   TDV – THREAD HOLDING SCREW .................................................................................................................... 39
   OPR – MOUNTING PLATE .................................................................................................................................. 39
   TAF – PROTECTION COVER .............................................................................................................................. 40
GENERAL INSTRUCTIONS FOR INSTALLATION AND USE............................................................................... 40
WELDING TO THE ANCHORS ............................................................................................................................... 42
CALCULATION OF THE T-SLOT ANCHOR........................................................................................................... 43
   CALCULATION EXAMPLE 1 : FLOOR ELEMENT .............................................................................................. 44
   CALCULATION EXAMPLE 2 : FAÇADE ELEMENT ............................................................................................ 46
   CALCULATION EXAMPLE 3 : VERTICALLY PREFABRICATED BEAMS – AXIAL LIFTING ............................ 48
   CALCULATION EXAMPLE 4 : VERTICALLY PREFABRICATED BEAMS – INCLINED LIFTING ...................... 50
                                                                                                                TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                                            3D-VERSION 08-2013
INTRODUCTION
For the transportation, lifting and mounting of concrete elements the best choice is to use the T-Slot- anchor system. This lifting
system is the safest method to transport concrete elements through the air. The system is fast to use and the use of a cheap T-
Slot-anchor makes the application of this lifting system the most economic system.
The T-Slot-anchor system exists of three main products. That is a T-Slot-anchor which is poured in concrete together with a
rubber recess former and a TH2 lifting clutch, which can be used for a long time (picture 1).
Picture 1
The T-Slot-anchor is built in the concrete element with the aid of a rubber recess former. After the pouring of the shuttering and
after the concrete is hardened, the rubber ball can be removed. The TH2 lifting clutch fits exactly in the created hole and the
prefab element can be pulled up out of the shuttering.
PRODUCTS RANGE
LIFTING SYSTEM
• LIFTING CLUTCHES
“Terwa” offers different lifting clutches and a wide range of different recess formers. The difference between all systems is
actually defined by the type of anchors.
• TRANSPORT ANCHORS
The anchors are forged from round carbon steel; for 45 t anchors alloyed carbon steel is used. Available in black (without
surface treatment but slightly oiled) or hot dip galvanised. A small range of stainless steel anchors (A2) is available as well. All
anchors are designed to fulfil a minimum safety factor c=3.
The anchors are fitted in the mould with a recess former. Obviously, the recess formers are available in the same range as the
lifting clutches and the anchors. This is indicated by a load group, marked on the top.
The formers are mounted on the mould with fixing plates.
                                                     TECHNICAL MANUAL - 3D SYSTEM
                                                                    3D-VERSION 08-2013
                                                                              Table 1
LIFTING CLUTCHES AND TRANSPORT ANCHOR
SAFETY RULES
The anchors are embedded in the concrete elements. The lifting system is only connected to the anchor when required for
lifting.
It is essential, in designing the lifting system, to use the following safety factors against breaking:
      •   For steel component                    c=3
      •   For concrete element                   c = 2,5
      •   For cable wires                        c=4
LOAD CAPACITY
The load capacity of the anchor depends on multiple factors such as:
    •   The deadweight of the precast concrete element “G”
    •   The strength of the concrete at the time of operating: lifting or transporting
    •   The embedded depth of the anchor
    •   The edge distance and spacing of the anchors
    •   The load direction
    •   The reinforcement arrangement
The total weight “G” of the precast reinforced concrete element is determined using a specific weight of: ρ = 25 kN/m³ For
prefabricated elements are composed of a higher concentration of reinforcing elements in the calculation of weight will take this
into account.
                                                                   G=ρxV
                                                                   V=Lxlxs
Picture 2
Adhesion forces between the mould and the concrete depend on the type of mould used.
Take account of
    •   Oiled formwork
    •   Taking away the side formwork
The value “Ha” of adhesion to the mould is calculated through the following equation:
Ha = q x A (kN)
         Where:
   q – the adhesion to mould factor according with the material of the mould
   y – the form factor (adhesion to mould factor according with the form of the element)
   A – area of contact between the mould and the concrete unit when starting the lift.
    •    For smooth oiled steel mould                          q = 1 kN/m ²
    •    For smooth varnished timber mould                     q = 2 kN/m ²
    •    For rough timber mould oiled                          q = 3 kN/m ²
                                                                                            Picture 3
                                                                                                   TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                  3D-VERSION 08-2013
Table 2
                 Form of the element                                Form factor “y”
Beam or pillar                                                          1,0 ÷ 1,10
Vertical plate                                                         1,10 ÷ 1,15
Horizontal plate                                                        1,2 ÷ 1,25
Floor plates with cassettes                                               > 2,0
Adhesion to the mould should be minimized before lifting out of the mould by removing as many parts of the mould as possible.
When the movement of the precast units is performed by lifting gear, dynamic forces which depend on the type of lifting gear
used appear.
Estimation has to be made of the appeared dynamic forces as a result of the lifting or transport method. Lifting with a stationary
crane, with a fine hoist possibility reduces these forces, while the forces will be increased enormously when lifting on the
building site with a forklift truck.
For cranes with precision lifting, the lifting load coefficient is f = 1,1 ÷ 1,3
When transporting suspended precast elements over uneven terrain, the lifting load coefficient used is f > 2.
During the detaching out of the formwork dynamic forces will occur. The size of the dynamic forces depends on the form of the
element, the formwork and the use of additions for the detaching out of the formwork. The table gives some indications for the
dynamic factor value which can be used.
Table 3
                                       f - Lifting load coefficient at lifting speed vh
   Lifting class
                                       Up to 90 m/min                          Over 90 m/min
          H1                            1,1 + 0.002 vh                                  1,3
          H2                            1,2 + 0.004 vh                                  1,6
          H3                            1,3 + 0.007 vh                                  1,9
          H4                            1,4 + 0.009 vh                                  2,2
Table 4
Lifting equipment                                               Dynamic acceleration coefficient
Tower crane and fixed crane                                                    1,2 *)
Mobile crane                                                                   1,4 *)
Lifting and transporting on flat ground                                       2 ÷ 2,5
Lifting and transporting on uneven terrain                                     3÷4
    *) lower values may be appropriate in precast plants if special arrangements are made.
The load of each anchor depends on the embedded position of the anchor in the precast unit and also on the transporting
mode:
    a) If the arrangement of the anchors is asymmetrical in relation to the centre of gravity, the individual anchor supports
        different loads (picture 4). These loads are calculated through the following equation:
Fa = Ftot x b / (a + b)
Fb = Ftot x a / (a + b)
                                                                                                    Picture 4
                                                                                           TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                 3D-VERSION 08-2013
b) In the case of transporting without lifting beam, the load on the anchor depends on the cable angle (ß).
The cable angle ß is determined by the length of the suspending cable. We recommend, if possible, that ß should be kept to a
minimum ß ≤ 30°(picture 5). The tensile force on the anchor is increased with an angle coefficient z (table 5).
Through a right position of the anchors, the same load per anchor can be realized. In the case that one anchor is more heavily
loaded than the other anchor, this anchor has to be chosen for this loading. It is better to apply anchors of the same kind per
lifting situation.
Determine the lifting angle of the hoist cable in relation to the length axle of the T-Slot- anchor. This depends on the adjusting of
the length of the hoist cables and the position of the lifting anchors. After determining the lifting angle, the calculation factor
follows via the table for the force in the lifting cable.
                                                        Table 5
                                                                     Cable angle ß                 Cable angle coefficient z
                                                                           0°                               1,00
                                                                          7,5°                              1,01
                                                                         15,0°                              1,04
                                                                         22,5°                              1,08
                                                                         30,0°                              1,16
                                                                        *37,5°                              1,26
                                                                        *45,0°                              1,41
                                                                  * preferred ß ≤30°
                                 α=2xß
          Picture 5
Table 6
                                                                     n = 2 – only
                                                                   two anchors can
     n=3                                                            be assumed to
                                                                    be load bearing
     n=2                                                                n=2
                                                                                              TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                     3D-VERSION 08-2013
n=4 n=4
                 -A perfect static weight distribution can be                           - A perfect static weight distribution can be
                 obtained through the use of a lifting beam and                         obtained using a crossed spreader beam,
                 two pairs of anchors set out symmetrically.                            which avoids angled pull.
Total load of precast unit for calculating the anchor is determined through the following equation:
The load on each load bearing anchor is calculated with the following formula:
During tilting, the concrete element remains supported on the ground, only the half of the forces have to be taken into account.
In the situation of pitching, load carrying capacity of sockets and anchors is limited to 50% of the axial load.
When the action force of the most heavily loaded lifting is determined the choice of the type of the lifting anchor must be made.
By means of the acting forces the type of the T-Slot-anchor can be determined. With the aid of the added tables can be
determined which length of the T- Slot-anchor must be used dependably of the present concrete strength.
When lifting in an angle by using T-Slot-anchors no reduction is needed on the permissible load. For the vertical setting of small
elements split reinforcement can be necessary by reason that the pressing force of the lifting hook will lead directly his forces
into the concrete. In these cases it is good to work with the TKA-Tilt Slot-anchors.
Split reinforcement can be adjusted in the following way. The lifting clutch directly leads the pressing force to the concrete and
starts approximately half way of the recess former. That is why the split reinforcement must be applied. See the drawing.
Picture 6 Picture 7
9) ANCHORING OF T-SLOT-ANCHORS
If the loading type of the T-Slot-anchors has been chosen, the length of the anchor has to be determined. Dependably of the
form of the element and the strength of the concrete at the first loading, a T-Slot-anchor has to be chosen, which realizes a
larger anchoring force than is calculated as the acting force. The admissible anchoring force is calculated with a safety factor of
2,5.
                                                                                           TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                  3D-VERSION 08-2013
The foot of the T-Slot-anchor obtains the anchoring. At collapsing of the concrete a dish formed foot arises of the T-Slot-anchor
a break out cone with an incline of 1:3. That is why those relatively small anchoring lengths will do.
In this technical documentation tables are added, to which in practice most of the situations can be filled in. It is also possible to
make an exact calculation of the present situation. On request special tables can be made which fulfil the practical situation in
the prefab factory or at the building site.
If it is possible divide elements in the groups below, than the following rule of thumb can be used. In case of inexperience with
the 3D Slot-anchor system, additional information is always obtainable at “Terwa”.
Type of element:
•          Beams:                     T-Slot-anchors with the standard length per loading type can be used.
•          Horizontal plates          T-Slot-anchors with a smaller length than standard can be used.
•          Vertical plates            T-Slot-anchors with a larger length than standard must be used.
All deliverable types of T-Slot-anchors are mentioned in the product documentation and the pricelist and can be delivered in
untreated, hot dip galvanizing or electrolytic galvanizing and stainless steel.
The calculation of the anchoring length can be done with the aid of empiric found formulas, with the VBC-90 or according to the
rules being in preparation of the CUR-working group “Anchors in concrete”
                                                             Picture 8
When calculating the admissible anchoring force, besides the length of the T-Slot-anchor, the present concrete strength is of
main importance. Mostly the deforming strength is leading or the concrete strength that is realized at the first loading of the
anchors. If there is any doubt about the admissible concrete force or that it is not possible to realize it, additional measurements
have to be taken. For instance, the concrete force can be enlarged in the location of the T-Slot-anchor by adjusting isolation
material. When you use isolation material, higher temperatures can be reached in the concrete and this gives a quicker force
development.
The addition of extra reinforcement in the reinforcement nets almost never leads to improvement of the anchoring force. The
anchoring force can only increase if the reinforcement is placed around and over the foot of the anchor.
                                                               Picture 9
The anchoring force of the T-Slot-anchor is the biggest when the T-Slot-anchor is placed at a distance to the edge which is 3
times larger than the built in depth so that a complete break out cone can be created (picture 8). If it is not possible to have an
edge distance to all directions of 3 times the built in depth, a better anchoring must be obtained with the aid of a longer T-Slot-
anchor.
In the table, a situation is described which fulfils as well the edge distances in all directions of 3 times larger than the built in
length as well the situation for which the edge distance is limited to 2 directions. With the aid of these tables a good impression
can be obtained of what the real admissible force is in situations that are more or less comparable. In case of doubt, please
contact “Terwa”.
                                                                                             TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                   3D-VERSION 08-2013
                        For vertical plates the possibility that a horizontal break out can occur must be taken into account. Here
                        also the present vertical reinforcement has no effect for the anchoring force. The situation in the figure will
                        become very critical if the thickness of the element is smaller than half the thickness of the chosen T-Slot-
                        anchor. In this situation an additional discussion with “Terwa” is necessary.
Picture 10
To enlarge the vertical anchoring a hairpin can be adjusted which falls around the foot. In this situation it is also very helpful to
use the TKA-Tilt Slot-anchor, an eye anchor or a rod anchor. With these lifting anchors the anchoring is obtained by a
reinforcement hairpin through the eye of the anchor or by a ribbed rod.
CHARACTERISTICS
T SLOT ANCHOR
The T Anchors (picture 11) are forged from round steel and are designed to a load force in the range of 1,3t to 45,0t. Proper for
large precast elements such as slabs, beams, panels, pipes. Anchors from 1,3t to 32,0t are made from S355J2 steel and the
45,0t anchors are made from alloyed steel 42CrMo4 (w1.7225-EN-10083-1). In the same load group, anchors are available
with different lengths. Longer anchors are installed for reduced edge spacing or for low concrete strengths. The load on the
anchor is transmitted to the concrete through the anchor foot (picture 12).
The anchors must be fixed in the mould using recess formers. The recess former retains the anchor securely in position during
the concrete pour. The recess former creates a void around the anchor head which corresponds to the lifting system head
(shackle). The incorrect coupling of parts of different load groups is impossible. Another advantage is that the shackle rests
against the concrete during angled pull and therefore the horizontal load is transferred into the concrete directly (picture 13).
For this reason additional reinforcement is not required in large units. In thin walls, additional reinforcement is necessary for
angled lift, to absorb the transverse pulling forces.
                                                                                                                                       Table 8
                        T slot - hot dip       T slot - electrolytic zinc    T slot stainless steel     Load
  T slot standard                                                                                               L     ØA    ØB    ØC Weight
                          galvanized                     plated                       304               group
              Prod.                   Prod.                       Prod.                       Prod.
Description         Description             Description                 Description                       t     mm mm mm mm [kg/pc]
               No.                     No.                         No.                         No.
T-013-0035    43795 T-013-0035-TV     43796 T-013-0035-EV            /      T-013-0035-SS2 44395         1,3    35    19    10    25    0,044
T-013-0040    43177 T-013-0040-TV     43178 T-013-0040-EV            /      T-013-0040-SS2 44405         1,3    40    19    10    25    0,047
T-013-0050    43180 T-013-0050-TV     43181 T-013-0050-EV            /      T-013-0050-SS2 43179         1,3    50    19    10    25    0,053
T-013-0055    43182 T-013-0055-TV     43183 T-013-0055-EV            /      T-013-0055-SS2 44406         1,3    55    19    10    25    0,056
T-013-0065    43184 T-013-0065-TV     43185 T-013-0065-EV         43971 T-013-0065-SS2 43186             1,3    65    19    10    25    0,062
T-013-0085    43187 T-013-0085-TV     43188 T-013-0085-EV            /      T-013-0085-SS2 43189         1,3    85    19    10    25    0,075
T-013-0120    43190 T-013-0120-TV     43191 T-013-0120-EV            /      T-013-0120-SS2 43192         1,3    120   19    10    25    0,096
T-013-0240    43193 T-013-0240-TV     43194 T-013-0240-EV            /      T-013-0240-SS2 44407         1,3    240   19    10    25    0,170
T-025-0045    43808 T-025-0045-TV     43809 T-025-0045-EV         47408 T-025-0045-SS2 44408             2,5    45    26    14    35    0,109
T-025-0055    43195 T-025-0055-TV     43196 T-025-0055-EV         47409 T-025-0055-SS2 44409             2,5    55    26    14    35    0,122
T-025-0065    43197 T-025-0065-TV     43198 T-025-0065-EV         47410 T-025-0065-SS2          /        2,5    65    26    14    35    0,134
T-025-0070    43199 T-025-0070-TV     43200 T-025-0070-EV            /      T-025-0070-SS2      /        2,5    70    26    14    35    0,140
T-025-0085    43201 T-025-0085-TV     43202 T-025-0085-EV            /      T-025-0085-SS2 43203         2,5    85    26    14    35    0,158
T-025-0100    43204 T-025-0100-TV     43205 T-025-0100-EV            /      T-025-0100-SS2      /        2,5    100   26    14    35    0,176
T-025-0120    43206 T-025-0120-TV     43207 T-025-0120-EV         47411 T-025-0120-SS2 43208             2,5    120   26    14    35    0,200
T-025-0140    43209 T-025-0140-TV     43817 T-025-0140-EV            /      T-025-0140-SS2      /        2,5    140   26    14    35    0,225
T-025-0170    43210 T-025-0170-TV     43211 T-025-0170-EV            /      T-025-0170-SS2 43212         2,5    170   26    14    35    0,261
T-025-0210    43820 T-025-0210-TV     44960 T-025-0210-EV            /      T-025-0210-SS2      /        2,5    210   26    14    35    0,309
T-025-0240    44961 T-025-0240-TV     44962 T-025-0240-EV            /      T-025-0240-SS2      /        2,5    240   26    14    35    0,345
T-025-0280    43213 T-025-0280-TV     43214 T-025-0280-EV            /      T-025-0280-SS2      /        2,5    280   26    14    35    0,394
T-050-0055    43536 T-050-0055-TV          /   T-050-0055-EV         /      T-050-0055-SS2      /        5,0    55    36    20    50    0,271
T-050-0065    43215 T-050-0065-TV     43216 T-050-0065-EV         47412 T-050-0065-SS2          /        5,0    65    36    20    50    0,296
T-050-0075    43217 T-050-0075-TV     43218 T-050-0075-EV         47413 T-050-0075-SS2          /        5,0    75    36    20    50    0,321
T-050-0080    43219 T-050-0080-TV     43220 T-050-0080-EV            /      T-050-0080-SS2      /        5,0    80    36    20    50    0,333
T-050-0085    43834 T-050-0085-TV     43221 T-050-0085-EV         47414 T-050-0085-SS2          /        5,0    85    36    20    50    0,350
T-050-0095    43222 T-050-0095-TV     43223 T-050-0095-EV         47415 T-050-0095-SS2          /        5,0    95    36    20    50    0,370
T-050-0110    43224 T-050-0110-TV     43835 T-050-0110-EV            /      T-050-0110-SS2      /        5,0    110   36    20    50    0,407
T-050-0120    43225 T-050-0120-TV     43226 T-050-0120-EV         47416 T-050-0120-SS2 43227             5,0    120   36    20    50    0,432
T-050-0140    43228 T-050-0140-TV     43836 T-050-0140-EV            /      T-050-0140-SS2      /        5,0    140   36    20    50    0,480
T-050-0150    43837 T-050-0150-TV     43838 T-050-0150-EV            /      T-050-0150-SS2      /        5,0    150   36    20    50    0,505
T-050-0160    43229 T-050-0160-TV     43230 T-050-0160-EV            /      T-050-0160-SS2      /        5,0    160   36    20    50    0,516
T-050-0170    46267 T-050-0170-TV          /   T-050-0170-EV         /      T-050-0170-SS2      /        5,0    170   36    20    50    0,555
T-050-0180    43231 T-050-0180-TV     43232 T-050-0180-EV         47417 T-050-0180-SS2 43233             5,0    180   36    20    50    0,580
T-050-0210    43234 T-050-0210-TV     43235 T-050-0210-EV            /      T-050-0210-SS2      /        5,0    210   36    20    50    0,654
T-050-0240    43236 T-050-0240-TV     43237 T-050-0240-EV            /      T-050-0240-SS2 43238         5,0    240   36    20    50    0,728
T-050-0340    43239 T-050-0340-TV     43240 T-050-0340-EV            /      T-050-0340-SS2      /        5,0    340   36    20    50    0,974
T-050-0480    43839 T-050-0480-TV     43840 T-050-0480-EV            /      T-050-0480-SS2      /        5,0    480   36    20    50    1,320
T-050-0680    43604 T-050-0680-TV     46342 T-050-0680-EV            /      T-050-0680-SS2      /        5,0    680   36    20    50    1,812
T-075-0085    43241 T-075-0085-TV     43841 T-075-0085-EV            /      T-075-0085-SS2      /        7,5    85    46    24    60    0,572
T-075-0095    43242 T-075-0095-TV     43243 T-075-0095-EV            /      T-075-0095-SS2      /        7,5    95    46    24    60    0,608
T-075-0100    47482 T-075-0100-TV     43626 T-075-0100-EV            /      T-075-0100-SS2      /        7,5    100   46    24    60    0,626
T-075-0120    43244 T-075-0120-TV     43245 T-075-0120-EV            /      T-075-0120-SS2 43246         7,5    120   46    24    60    0,697
T-075-0140    43842 T-075-0140-TV          /   T-075-0140-EV         /      T-075-0140-SS2      /        7,5    140   46    24    60    0,768
T-075-0150    43247 T-075-0150-TV     43248 T-075-0150-EV            /      T-075-0150-SS2      /        7,5    150   46    24    60    0,803
T-075-0160    43249 T-075-0160-TV     43250 T-075-0160-EV            /      T-075-0160-SS2      /        7,5    160   46    24    60    0,838
                                                                                                      TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                            3D-VERSION 08-2013
                        T slot - hot dip       T slot - electrolytic zinc    T slot stainless steel     Load
  T slot standard                                                                                                L     ØA    ØB    ØC Weight
                          galvanized                     plated                       304               group
              Prod.                   Prod.                       Prod.                       Prod.
Description         Description             Description                 Description                       t     mm mm mm mm [kg/pc]
               No.                     No.                         No.                         No.
T-075-0165    43251 T-075-0165-TV     43252 T-075-0165-EV            /      T-075-0165-SS2      /        7,5    165    46    24    60    0,857
T-075-0170    43253 T-075-0170-TV     43974 T-075-0170-EV            /      T-075-0170-SS2      /        7,5    170    46    24    60    0,875
T-075-0200    43254 T-075-0200-TV     43255 T-075-0200-EV            /      T-075-0200-SS2      /        7,5    200    46    24    60    0,981
T-075-0240    44963 T-075-0240-TV     44964 T-075-0240-EV            /      T-075-0240-SS2      /        7,5    240    46    24    60    1,123
T-075-0300    43256 T-075-0300-TV     43257 T-075-0300-EV            /      T-075-0300-SS2 43258         7,5    300    46    24    60    1,336
T-075-0540    43259 T-075-0540-TV     43260 T-075-0540-EV            /      T-075-0540-SS2      /        7,5    540    46    24    60    2,192
T-075-0680    43843 T-075-0680-TV     43844 T-075-0680-EV            /      T-075-0680-SS2      /        7,5    680    46    24    60    2,690
T-100-0085    43261 T-100-0085-TV     43262 T-100-0085-EV            /      T-100-0085-SS2      /       10,0     85    46    28    70    0,714
T-100-0090      /   T-100-0090-TV     43263 T-100-0090-EV            /      T-100-0090-SS2      /       10,0     90    46    28    70    0,765
T-100-0100    43264 T-100-0100-TV     43845 T-100-0100-EV            /      T-100-0100-SS2      /       10,0    100    46    28    70    0,815
T-100-0110    43265 T-100-0110-TV     46269 T-100-0110-EV            /      T-100-0110-SS2      /       10,0    110    46    28    70    0,863
T-100-0115    43266 T-100-0115-TV     43267 T-100-0115-EV         47418 T-100-0115-SS2 43268            10,0    115    46    28    70    0,887
T-100-0120    43269 T-100-0120-TV     43270 T-100-0120-EV            /      T-100-0120-SS2      /       10,0    120    46    28    70    0,910
T-100-0135    43271 T-100-0135-TV     43272 T-100-0135-EV         47419 T-100-0135-SS2          /       10,0    135    46    28    70    0,984
T-100-0140    43847 T-100-0140-TV          /   T-100-0140-EV         /      T-100-0140-SS2      /       10,0    140    46    28    70    1,007
T-100-0150    43273 T-100-0150-TV     43274 T-100-0150-EV         47420 T-100-0150-SS2          /       10,0    150    46    28    70    1,056
T-100-0170    43275 T-100-0170-TV     43276 T-100-0170-EV         47421 T-100-0170-SS2 43277            10,0    170    46    28    70    1,153
T-100-0200    43848 T-100-0200-TV     44965 T-100-0200-EV            /      T-100-0200-SS2      /       10,0    200    46    28    70    1,298
T-100-0220    43278 T-100-0220-TV     43849 T-100-0220-EV            /      T-100-0220-SS2      /       10,0    220    46    28    70    1,395
T-100-0250    43279 T-100-0250-TV     43280 T-100-0250-EV            /      T-100-0250-SS2      /       10,0    250    46    28    70    1,540
T-100-0340    43281 T-100-0340-TV     43282 T-100-0340-EV            /      T-100-0340-SS2 43283        10,0    340    46    28    70    1,974
T-100-0500    43514 T-100-0500-TV          /   T-100-0500-EV         /      T-100-0500-SS2      /       10,0    500    46    28    70    2,748
T-100-0540    47481 T-100-0540-TV          /   T-100-0540-EV         /      T-100-0540-SS2      /       10,0    540    46    28    70    2,940
T-100-0650    43284 T-100-0650-TV     43850 T-100-0650-EV            /      T-100-0650-SS2      /       10,0    650    46    28    70    3,473
T-100-0680    43285 T-100-0680-TV     43286 T-100-0680-EV            /      T-100-0680-SS2      /       10,0    680    46    28    70    3,315
T-100-1300    45168 T-100-1300-TV          /   T-100-1300-EV         /      T-100-1300-SS2      /       10,0    1300   46    28    70    6,615
T-150-0140    43851 T-150-0140-TV     43852 T-150-0140-EV            /      T-150-0140-SS2      /       15,0    140    70    38    80    1,992
T-150-0150    43853 T-150-0150-TV     43854 T-150-0150-EV            /      T-150-0150-SS2      /       15,0    150    70    38    80    2,080
T-150-0165    43287 T-150-0165-TV     43288 T-150-0165-EV         47422 T-150-0165-SS2          /       15,0    165    70    38    80    2,214
T-150-0170    43855 T-150-0170-TV          /   T-150-0170-EV         /      T-150-0170-SS2      /       15,0    170    70    38    80    2,258
T-150-0200    43856 T-150-0200-TV     43857 T-150-0200-EV         47423 T-150-0200-SS2          /       15,0    200    70    38    80    2,526
T-150-0210    43289 T-150-0210-TV     43290 T-150-0210-EV            /      T-150-0210-SS2      /       15,0    210    70    38    80    2,615
T-150-0300    43291 T-150-0300-TV     43292 T-150-0300-EV            /      T-150-0300-SS2      /       15,0    300    70    38    80    3,416
T-150-0400    43293 T-150-0400-TV     43294 T-150-0400-EV            /      T-150-0400-SS2      /       15,0    400    70    38    80    4,306
T-150-0840    43295 T-150-0840-TV     43296 T-150-0840-EV            /      T-150-0840-SS2      /       15,0    840    70    38    80    8,223
T-200-0100    44927 T-200-0100-TV          /   T-200-0100-EV         /      T-200-0100-SS2      /       20,0    100    70    40    98    1,965
T-200-0165    43858 T-200-0165-TV     43297 T-200-0165-EV            /      T-200-0165-SS2      /       20,0    165    70    40    98    2,606
T-200-0170    47256 T-200-0170-TV          /   T-200-0170-EV         /      T-200-0170-SS2      /       20,0    170    70    40    98    2,655
T-200-0200    43298 T-200-0200-TV     44966 T-200-0200-EV         47424 T-200-0200-SS2          /       20,0    200    70    40    98    2,951
T-200-0240    43859 T-200-0240-TV          /   T-200-0240-EV         /      T-200-0240-SS2      /       20,0    240    70    40    98    3,346
T-200-0250    43299 T-200-0250-TV     43300 T-200-0250-EV            /      T-200-0250-SS2      /       20,0    250    70    40    98    3,445
T-200-0340    43301 T-200-0340-TV     43302 T-200-0340-EV            /      T-200-0340-SS2      /       20,0    340    70    40    98    4,332
T-200-0500    43303 T-200-0500-TV     43304 T-200-0500-EV            /      T-200-0500-SS2      /       20,0    500    70    40    98    5,911
T-200-1000    43305 T-200-1000-TV     43515 T-200-1000-EV            /      T-200-1000-SS2      /       20,0    1000   70    40    98    10,843
T-320-0175    47391 T-320-0175-TV          /   T-320-0175-EV         /      T-320-0175-SS2      /       32,0    175    88    50    135   5,419
                                                                                                    TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                          3D-VERSION 08-2013
                         T slot - hot dip    T slot - electrolytic zinc    T slot stainless steel     Load
  T slot standard                                                                                              L     ØA    ØB    ØC Weight
                           galvanized                  plated                       304               group
              Prod.                    Prod.                    Prod.                       Prod.
Description         Description              Description              Description                       t     mm mm mm mm [kg/pc]
               No.                      No.                      No.                         No.
T-320-0280    43516 T-320-0280-TV      43306 T-320-0280-EV         /      T-320-0280-SS2      /       32,0    280    88    50    135   7,038
T-320-0320    46086 T-320-0320-TV      46087 T-320-0320-EV         /      T-320-0320-SS2      /       32,0    320    88    50    135   7,654
T-320-0500    43517 T-320-0500-TV      43307 T-320-0500-EV         /      T-320-0500-SS2      /       32,0    500    88    50    135 10,429
T-320-0700    43518 T-320-0700-TV      43308 T-320-0700-EV         /      T-320-0700-SS2      /       32,0    700    88    50    135 13,512
T-320-1200    43519 T-320-1200-TV      43309 T-320-1200-EV         /      T-320-1200-SS2      /       32,0    1200   88    50    135 21,218
T-450-0280    44567 T-450-0280-TV      44571 T-450-0280-EV         /      T-450-0280-SS2      /       45,0    280    88    50    135   7,038
T-450-0500    44568 T-450-0500-TV      44572 T-450-0500-EV         /      T-450-0500-SS2      /       45,0    500    88    50    135 10,429
T-450-0700    44569 T-450-0700-TV      44573 T-450-0700-EV         /      T-450-0700-SS2      /       45,0    700    88    50    135 13,512
T-450-1200    45846 T-450-1200-TV      45847 T-450-1200-EV         /      T-450-1200-SS2      /       45,0    1200   88    50    135 21,218
T-slot anchors are available in four variants: shot blasting, hot dip galvanized (TV), electrolytic galvanized (EV) or stainless steel
(SS2) on request (table 8).
                                                                                       TECHNICAL MANUAL - 3D SYSTEM
                                                                                                            3D-VERSION 08-2013
T-SLOT-ANCHOR ARRANGEMENT
                                                                   L = anchor length
                                                                   a = edge distance
                                                                   e = cover to anchor head
                                                                    R = recess radius
Picture 17
                                                                                                                         Table 9
                                Load
      Type T Slot                                      “L”                 “R”                 “e”                 “a”
                                Group
     Description                  [t]                  [mm]               [mm]                [mm]                [mm]
T-013-0120                        1,3                  120                  30                  10                 390
T-013-0240                        1,3                  240                  30                  10                 390
T-025-0140                        2,5                  140                  37                  11                 540
T-025-0170                        2,5                  170                  37                  11                 540
T-025-0210                        2,5                  210                  37                  11                 540
T-025-0280                        2,5                  280                  37                  11                 540
T-050-0180                        5,0                  180                  47                  15                 765
T-050-0210                        5,0                  210                  47                  15                 765
T-050-0240                        5,0                  240                  47                  15                 765
T-050-0340                        5,0                  340                  47                  15                 765
T-050-0480                        5,0                  480                  47                  15                 765
T-075-0300                        7,5                  300                  59                  15                 945
T-075-0540                        7,5                  540                  59                  15                 945
T-075-0680                        7,5                  680                  59                  15                 945
T-100-0250                       10,0                  250                  59                  15                1100
T-100-0340                       10,0                  340                  59                  15                1100
T-100-0500                       10,0                  500                  59                  15                1100
T-100-0540                       10,0                  540                  59                  15                1100
T-100-0650                       10,0                  650                  59                  15                1100
T-100-0680                       10,0                  680                  59                  15                1100
T-150-0300                       15,0                  300                  80                  15                1250
T-150-0400                       15,0                  400                  80                  15                1250
T-150-0840                       15,0                  840                  80                  15                1250
T-200-0340                       20,0                  340                  80                  15                1550
T-200-0500                       20,0                  500                  80                  15                1550
T-200-1000                       20,0                  1000                 80                  15                1550
T-320-0500                       32,0                  500                 102                  23                2150
T-320-0700                       32,0                  700                 102                  23                2150
T-320-1200                       32,0                  1200                102                  23                2150
T-450-0500                       45,0                  500                 102                  23                2400
T-450-0700                       45,0                  700                 102                  23                2400
T-450-1200                       45,0                  1200                102                  23                2400
Note: values in the table above for distance to the edge are valid for unreinforced concrete elements. The distance to the edge
can be reduced in reinforced concrete units.
                                                                                          TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                3D-VERSION 08-2013
Panels and beams containing only basic reinforcements such as wire mesh, stirrups and edge reinforcement must only be lifted
in the axial direction or at an angle not exceeding 30° (picture 18).
The stirrups (table 10) will be installed on both sides of the anchor on an area equal to 2,5 x length of anchor. Those two stirrups
in the vicinity of the anchor should be installed as close as possible to the recess former.
Picture 18
                                                                                                                            Table 10
                                                                                     Stirrups                 Edge reinforcement
                                               Type of       Load                    BSt 500S                     BSt 500S
                                               anchor        Group
                                                                           nxd         „Ls”        „L1”               „d”
                                             Description       [t]         [mm]        [mm]        [mm]              [mm]
                                           T-013-0xxx          1,3         4 x Ø6     L+300         300               Ø10
Note:
    -    Stirrups length (Ls) = anchor length (L) + length (L1) in the table 10
    -    The type of mesh reinforcement is determined by a specialist.
                                                                                     TECHNICAL MANUAL - 3D SYSTEM
                                                                                                         3D-VERSION 08-2013
Concrete strength fcu N/mm². The values shown in the table 11 are valid when using all reinforcements described above (mesh,
stirrups and edge reinforcement – picture 18).
                                                                                                                    Table 11
                                      Minimum
                       Load                                                 Permissible axial loads
  Type of anchor                      thickness
                       group
                                         “s”            fcu ≥ 15 N/mm²          fcu ≥ 25 N/mm²          fcu ≥ 35 N/mm²
   Description           [t]            [mm]                 [kN]                    [kN]                    [kN]
                                         60                  9,9                     12,8                    13,0
T-013-0120
                         1,3             80                  13,0                    13,0                    13,0
T-013-0240
                                         100                 13,0                    13,0                    13,0
                                         80                  18,4                    23,8                    25,0
T-025-0170
                         2,5             100                 23,0                    25,0                    25,0
T-025-0280
                                         120                 25,0                    25,0                    25,0
                                         120                 39,5                    50,0                    50,0
T-050-0340               5,0             140                 46,0                    50,0                    50,0
                                         160                 50,0                    50,0                    50,0
                                         100                 32,8                    42,0                    50,0
T-050-0480               5,0             120                 39,5                    50,0                    50,0
                                         140                 46,0                    50,0                    50,0
                                         160                 63,2                    75,0                    75,0
T-075-0300               7,5             180                 71,0                    75,0                    75,0
                                         200                 75,0                    75,0                    75,0
                                         140                 55,2                    71,3                    75,0
T-075-0540               7,5             160                 63,2                    75,0                    75,0
                                         180                 71,0                    75,0                    75,0
                                         200                 89,5                   100,0                    100,0
T-100-0340              10,0             240                 98,0                   100,0                    100,0
                                         280                100,0                   100,0                    100,0
                                         160                 73,6                    95,2                    100,0
T-100-0680              10,0             180                 83,0                   100,0                    100,0
                                         200                 92,0                   100,0                    100,0
                                         300                129,0                   150,0                    150,0
T-150-0400              15,0             400                149,0                   150,0                    150,0
                                         500                150,0                   150,0                    150,0
                                         200                112,0                   144,5                    150,0
T-150-0840              15,0             220                123,0                   150,0                    150,0
                                         240                134,2                   150,0                    150,0
                                         300                162,1                   200,0                    200,0
T-200-0500              20,0             400                175,1                   200,0                    200,0
                                         500                187,2                   200,0                    200,0
                                         240                154,9                   199,9                    200,0
T-200-1000              20,0             260                167,8                   200,0                    200,0
                                         280                180,7                   200,0                    200,0
                                         450                282,6                   320,0                    320,0
T-320-0700              32,0             550                312,5                   320,0                    320,0
                                         650                320,0                   320,0                    320,0
                                         300                266,7                   320,0                    320,0
T-320-1200              32,0             350                311,0                   320,0                    320,0
                                         400                320,0                   320,0                    320,0
                                         400                355,5                   450,0                    450,0
T-450-1200              45,0             500                444,4                   450,0                    450,0
                                         600                450,0                   450,0                    450,0
                                                                                          TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                 3D-VERSION 08-2013
For angled pull it is required an additional reinforcement installed in opposite direction of the load (picture 22). It is
recommended to install this angle pull reinforcement as close as possible under the recess former and with full contact to the
anchor.
The additional reinforcements necessary in the anchor zone for lifting the panels and beams at angles ß ≤ 45° are shown in the
pictures bellow and table 12, the concrete strength must be at least 15 N/mm². It is recommended that the angle ß, where
possible, should not exceed 30 °.
The stirrups (picture 19) will be installed on both sides of the anchor on an area equal to 2,5 x length of anchor. Those two
stirrups in the vicinity of the anchor should be installed as close as possible to the recess former.
                                                                                                                           Table 12
                                                                         Edge reinforcement                 Angled lift
    Type of        Load                   Stirrups - BSt 500S
                                                                             BSt 500S                reinforcement BSt 500S
    anchor         Group
                                 nxd            „Ls”            „L1”              „d”          „da”            „c”         „La”
    Symbol           [t]         [mm]           [mm]            [mm]              [mm]         [mm]           [mm]         [mm]
T-013-0xxx           1,3         4 x Ø6         L+450           450               Ø10           Ø8              25         400
T-025-0xxx           2,5        6 x Ø10         L+600           600               Ø10           Ø10             25         750
T-050-0xxx           5,0        6 x Ø10         L+750           750               Ø12           Ø14             35         1000
T-075-0xxx           7,5        8 x Ø10         L+750           750               Ø12           Ø16             40         1150
T-100-0xxx          10,0        8 x Ø10         L+750           750               Ø14           Ø20             50         1300
T-150-0xxx          15,0        8 x Ø10        L+1000           1000              Ø14         2 x Ø20           80         1500
T-200-0xxx          20,0        10 x Ø12       L+1000           1000              Ø16         2 x Ø25           80         1500
T-320-0xxx          32,0        10 x Ø14       L+1100           1100              Ø16         2 x Ø25           80         1500
Note:
    -    Stirrups length (Ls) = anchor length (L) + length (L1) in the table12.
    -    Type of mesh reinforcement is determined by a specialist.
                                                                                       TECHNICAL MANUAL - 3D SYSTEM
                                                                                                              3D-VERSION 08-2013
Picture 22
LOAD CAPACITY FOR ANGLED LIFT UP TO 45°, CAST-IN ANCHORS IN PANELS OR BEAMS
Concrete strength fcu N/mm². The values shown in the table 13 are valid when using the above reinforcement (mesh, stirrups,
edge reinforcement and angle lift reinforcement – picture 22).
                                                                                                                           Table 13
                                     Minimum
                       Load                                        Permissible forces for angle lift ß ≤ 45° (kN)
                                     thickness
  Type of anchor       group
                                        "s"            fcu ≥ 15 N/mm²             fcu ≥ 25 N/mm²             fcu ≥ 35 N/mm²
                         [t]           [mm]                 [kN]                       [kN]                         [kN]
                                        60                  9,9                        12,8                         13,0
T-013-0120
                         1,3            80                  13,0                       13,0                         13,0
T-013-0240
                                        100                 13,0                       13,0                         13,0
                                        80                  18,4                       23,8                         25,0
T-025-0170
                         2,5            100                 23,0                       25,0                         25,0
T-025-0280
                                        120                 25,0                       25,0                         25,0
                                        120                 39,5                       50,0                         50,0
T-050-0340               5,0            140                 46,0                       50,0                         50,0
                                        160                 50,0                       50,0                         50,0
                                                                       TECHNICAL MANUAL - 3D SYSTEM
                                                                                              3D-VERSION 08-2013
                           Minimum
                   Load                            Permissible forces for angle lift ß ≤ 45° (kN)
                           thickness
  Type of anchor   group
                              "s"      fcu ≥ 15 N/mm²             fcu ≥ 25 N/mm²             fcu ≥ 35 N/mm²
                    [t]      [mm]          [kN]                        [kN]                         [kN]
                             100           32,8                        42,0                         50,0
T-050-0480          5,0      120           39,5                        50,0                         50,0
                             140           46,0                        50,0                         50,0
                             160           56,5                        75,0                         75,0
T-075-0300          7,5      180           60,0                        75,0                         75,0
                             200           63,2                        75,0                         75,0
                             140           55,2                        71,3                         75,0
T-075-0540          7,5      160           63,2                        75,0                         75,0
                             180           71,0                        75,0                         75,0
                             200           71,5                        100,0                        100,0
T-100-0340         10,0      240           78,4                        100,0                        100,0
                             280           84,6                        100,0                        100,0
                             160           73,6                        95,2                         100,0
T-100-0680         10,0      180           83,0                        100,0                        100,0
                             200           92,0                        100,0                        100,0
                             300           103,0                       150,0                        150,0
T-150-0400         15,0      400           119,0                       150,0                        150,0
                             500           133,0                       150,0                        150,0
                             200           112,0                       144,5                        150,0
T-150-0840         15,0      220           123,0                       150,0                        150,0
                             240           134,2                       150,0                        150,0
                             300           129,7                       200,0                        200,0
T-200-0500         20,0      400           140,1                       200,0                        200,0
                             500           149,7                       200,0                        200,0
                             240           154,9                       199,9                        200,0
T-200-1000         20,0      260           167,8                       200,0                        200,0
                             280           180,7                       200,0                        200,0
                             450           226,0                       320,0                        320,0
T-320-0700         32,0      550           250,0                       320,0                        320,0
                             650           271,8                       320,0                        320,0
                             300           266,7                       320,0                        320,0
T-320-1200         32,0      350           311,0                       320,0                        320,0
                             400           320,0                       320,0                        320,0
                             400           355,5                       450,0                        450,0
T-450-1200         45,0      500           421,6                       450,0                        450,0
                             600           450,0                       450,0                        450,0
                                                                                            TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                 3D-VERSION 08-2013
LOAD CAPACITY OF T-SLOT ANCHORS IN SLABS OR DE-MOULD PANELS FOR PULL OR ANGLED LIFT UP TO 45°
                                                                       L = anchor length
                                                                       a = edge distance
                                                                       e = cover to anchor head
                                                                       g = unit thickness
Picture 23
                                                                                                                              Table14
                                                                                      Permissible force (kN)
                              Anchor     Minimum       Edge
              Load            length     thickness   distance       Axial          Angle lift          Axial lift and angle lift
Anchor type           „e”
              group                                                  lift           ß ≤ 45°                    ß ≤ 45°
                                „L”         „s"        “a”      fcu ≥ 15 N/mm²   fcu ≥ 15 N/mm²   fcu ≥ 25 N/mm²    fcu ≥ 35 N/mm²
               [t]    [mm]     [mm]        [mm]       [mm]           [kN]             [kN]            [kN]                [kN]
                             Picture 24
                                                                                         TECHNICAL MANUAL - 3D SYSTEM
                                                                                                               3D-VERSION 08-2013
P- SLOT-ANCHOR
Forged from round carbon steel, P-slot anchor are designed to load forces in the range of 1,3t to 10,0t (table 15).
The collar below the anchor head seals the former when the anchor is pushed into the recess former.
O-EYE- ANCHOR
Forged from carbon steel, O-eye anchor are designed to load forces in the range of 1,3t to 32,0t (table 16).
The O-eye-anchor is provided with a hole, in which a reinforcement hairpin has to be placed to obtain a good anchoring in small
elements, lightweight pre cast elements such as pre-stressed beams (picture 30). Since the entire load is transferred to concrete
reinforcement steel, it should be installed so as to maintain direct contact with the bottom of the anchor hole.
Use of this reinforcement is essential. Do not use anchors type O without this reinforcement.
For angled lift is necessary to use an additional reinforcement, similar to that mounted with t-slot anchor. It is recommended to
install this angle pull reinforcement as close as possible under the recess former and with full contact to the anchor.
                   Product                         Product
Descr.                        Descr.                            [t]            [mm]         [mm]          [mm]             [mm]        [kg/pc]
                     nr.                             nr.
O-013-065           43328     O-013-065-TV          43329       1,3            65            19            10               9          0,062
O-025-090           43330     O-025-090-TV          43331       2,5            90            26            14              13          0,171
O-025-120           46261     O-025-120-TV          46262       2,5            120           26            14              13          0,207
O-050-090           43332     O-050-090-TV          43571       5,0            90            36            20              18          0,351
O-050-120           43333     O-050-120-TV          43334       5,0            120           36            20              18          0,425
O-100-115           43556     O-100-115 TV          43557      10,0            115           47            28              25          0,820
O-100-180           43335     O-100-180-TV          43336      10,0            180           47            28              25          1,147
O-200-250           43558     O-200-250 TV          43559      20,0            250           70            39              37          3,311
O-320-300           43560     O-320-300 TV          43561      32,0            300           88            50              47          6,254
                                                                                                                                        Table 17
                            Minimum              O-anchor reinforcement               Permissible axial        Permissible angled lift forces
                  Load      thickness                 Dimensions                          forces                           ß ≤ 45°
O-anchor type     group
                               "s"      E(B15)      E(B25)   E(B35)       Øe           fcu ≥ 15 N/mm²          fcu ≥ 15 N/mm²     fcu ≥ 25 N/mm²
                    [t]       [mm]       [mm]        [mm]     [mm]        [mm]              [kN]                   [kN]                [kN]
O-013-xxx           1,3        80        700         600       450         8                13,0                   10,4                13,0
O-025-xxx           2,5        80        1100        800       650        10                25,0                   20,0                25,0
O-050-xxx           5,0       100        1700        1400     1100        16                50,0                   40,0                50,0
O-100-xxx          10,0       140        2000        1600     1300        20               100,0                   80,0               100,0
O-200-xxx          20,0       180        3000        2400     2000        32               200,0                   160,0              200,0
O-320-xxx          32,0       260        3800        2700     2200        40               320,0                   256,0              320,0
O anchors are available in two variants: shot blasting and hot dip galvanizing(TV) (table 16).
TKA-TILT SLOT-ANCHOR
Forged from carbon steel, they are designed to a load force in the range of 1,3t to 5,0t (table 18).
TKA anchors can carry loads of between 1,3t and 5,0t. These anchors are used for tilt and transport thin concrete walls . Usually
this type of anchor is used together with additional reinforcing steel. The TKA anchor must be fixed in the mould using a specific
recess formers RBK (picture 33). The recess former retains the anchor securely in position during the concrete pour. The IPK is
mounted in the RBK in order to stabilize the RBK during pouring and hardening.
                      Picture 31                                                                  Picture 32
Characteristics of TKA anchors
                                                                                                                                        Table 18
                                  TKA-anchor hot dip           Load
  TKA-anchor standard                                                          L            ØD            Ø D1             Ød          Weight
                                     galvanized                group
                 Product                        Product
Descr.                       Descr.                              [t]       [mm]            [mm]           [mm]             [mm]        [kg/pc]
                   nr.                            nr.
TKA-013-120       44476      TKA-013-120-TV          44804      1,3         120              19            23               11          0.20
TKA-025-170       44477      TKA-025-170-TV          44805      2,5         170              25            34               16          0.45
TKA-050-240       44478      TKA-050-240-TV          44806      5,0         240              36            50               21          1.25
                                                                                             TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                     3D-VERSION 08-2013
                                                         Picture 33
Characteristics of RBK balls:
                                                                                                                                 Table 19
                                                                                            Load
                                                            RBK-recess former                         Length L      Height H    Width B
                                                                                            group
                                                                           Product
                                                        Descr.                               [t]       [mm]          [mm]        [mm]
                                                                             nr.
                                                        RBK-13              43946            1,3         70           32             49
For pitching additional reinforcements have to be installed in anchor zone (picture 34 – table 21). Take care to anchors
placement so that they ensure the load transfer. The RBK recess former is removed out of the hardened concrete and the lifting
device can be connected.
The shackle nose must be oriented towards the direction of lifting (picture 37).
Additional reinforcements:
Reinforcement 1 Reinforcement 2
Picture 37 Picture 38
Permissible load:
                                                                                                                                                Table 22
                                             Transverse lift                        Angle lift ß ≤ 15º                         Angle lift ß ≤ 45º
               Axial Element
 TKA-anchor                                Concrete strength           Concrete strength           Concrete strength
               Load thickness
    type                           10 N/mm² 15 N/mm² 25 N/mm² 10 N/mm² 15 N/mm² 25 N/mm² 10 N/mm² 15 N/mm² 25 N/mm²
               [kN]      [mm]         [kN]       [kN]        [kN] [kN]       [kN]        [kN] [kN]       [kN]        [kN]
                          80           2,4        3,0         3,6  9,0       11,0        13,0  8,0       10,0        12,0
TKA-013-120     13        100          3,4        4,0          4,6           11,0           12,0          13,0          10,0         12,0           13,0
                          120          4,4        5,0          5,6           12,5           13,0          13,0          12,0         13,0           13,0
                          100          6,4        7,8          10,1          17,7           25,0          25,0          18,0         24,0           25,0
                          110          7,4        9,0          11,6          19,4           25,0          25,0          18,0         24,0           25,0
TKA-025-170     25
                          120          8,4        10,3         12,5          22,6           25,0          25,0          19,0         25,0           25,0
                          130          9,5        11,6         12,5          23,5           25,0          25,0          19,0         25,0           25,0
                          140         12,7        15,6         20,1          32,0           44,0          50,0          31,0         42,0           50,0
TKA-050-240     50        150         14,1        17,3         22,3          35,0           46,0          50,0          33,0         44,0           50,0
                          160         15,6        19,1         24,6          38,0           48,0          50,0          35,0         46,0           50,0
The TSG anchor (picture 39) is designed to a load force in the range of 1,3t to 32,0t (table 23). This type of anchor is mainly
used in sandwich panels. The anchor head must be positioned on the axis of symmetry of the sandwich precast panel (picture
41). To ensure a safe load transfer the anchor leg must be positioned on the middle of the load bearing layer (picture 41).
                          Picture 39                                                                       Picture 40
                                                                                                                                                Table 23
                                                                      Load
       TSG standard                  TSG hot dip galvanized                             L          ØA            ØB        ØD            E          Weight
                                                                      group
                     Product                             Product
Description                  Description                               [t]           [mm]          [mm]          [mm]      [mm]        [mm]         [kg/pc]
                       no.                                 no.
TSG-013-227           43087     TSG-013-227-TV            43088        1,3            227           19            10           25        50         0,170
TSG-025-268           43089     TSG-025-268-TV            43090        2,5            268           26            14           35        50         0,397
TSG-040-406           43091     TSG-040-406-TV            43092        4,0            406           36            18           45        60         0,967
TSG-050-466           43093     TSG-050-466-TV            43094        5,0            466           36            20           50        60         1,327
TSG-075-664           43095     TSG-075-664-TV            43096        7,5            664           46            24           60        70         2,701
TSG-100-667           43097     TSG-100-667-TV            43100       10,0            667           46            28           70        70         3,650
TSG-150-825           43101     TSG-150-825-TV            43102       15,0            825           70            38           80        90         8,315
TSG-200-986           43103     TSG-200-986-TV            43104       20,0            986           70            40           98        90         10,945
TSG-320-1150          45912     TSG-320-1150-TV           45913       32,0            1150          88            50       135          150         21,218
                                                                                            TECHNICAL MANUAL - 3D SYSTEM
                                                                                                               3D-VERSION 08-2013
TSG anchors are available in two variants: shot blasting and hot galvanizing(TV).
Picture 41 Picture 42
                                                                                                                         Table 24
                                                                                                                        Max.
                                                                 Type of            Load        Length        Max.
                                                                                                                      Thickness
                                                                  TSG               group         L           Load
                                                                                                                          s
                                                          Description                [t]        [mm]          [kN]       [mm]
TKS-SLOT ANCHOR
Forged from rebar steel, TKS slot anchor (picture 43) are designed to a load force in the range of 2,5t to 15,0t (table 25).
The TKS-Rod Slot-anchor is provided with a ribbed rod to which a good anchoring can be obtained. For situations in which an
anchoring foot cannot be used, a TKS-Rod Slot-anchor with an adjusted length can realize a sufficient anchoring. This anchor is
the best solution especially in very thin elements.
Picture 43 Picture 44
Characteristics of TKS-Slot-anchor
                                                                                                                             Table 25
                                                                         Length l
       TKS-Slot-anchor type              Axial load      Length L                         Ød              ØA               Weight
                                                                       (anchoring)
Description           Product no.          [kN]           [mm]            [mm]            [mm]            [mm]             [kg/pc]
TKS-025-0400               43667            25             400             374             14              26              0,505
TKS-025-0520               43668            25             520             494             14              26              0,645
TKS-050-0580               43669            50             580             548             20              36              1,460
TKS-050-0790               47429            50             790             758             20              36              1,962
TKS-050-0900               43670            50             900             868             20              36              2,230
TKS-075-0750               43671            75             750             706             24              47              2,930
TKS-075-1150               43672            75             1150            1106            24              47              4,352
TKS-100-0870               43673            100            870             826             28              47              4,500
TKS-100-1300               43674            100            1300            1256            28              47              6,450
TKS-150-1080               43675            150            1080            1015            34              70              8,593
TKS-150-1550               43676            150            1550            1485            34              70              11,935
REINFORCEMENTS TYPES USED IN THE ANCHOR ZONE FOR PANELS AND BEAMS FOR ANGLE LIFT
Panels and beams containing only basic reinforcements such as wire mesh, stirrups (picture 45) and edge reinforcement
(picture 46) must only be lifted in the axial direction or at an angle not exceeding 30 °.
For angled pull is required an additional reinforcement (picture 47) installed in opposite direction of the load. It is recommended
to install this angle pull reinforcement as close as possible under the recess former and with full contact to the anchor.
The additional reinforcements necessary in the anchor zone for lifting the panels and beams at angles ß ≤ 45° are shown in the
table 26 – picture 48, the concrete strength must be at least 15 N/mm². It is recommended that the angle ß, where possible,
should not exceed 30 °.
The stirrups will be installed on both sides of the anchor on an area equal to 2,5 x length of anchor. This two stirrups in the
vicinity of the anchor should be installed as close as possible to the recess former.
                                                                                                                        Table 26
                                            The
                           Concrete
                                       recommended                                  Edge reinforcement          Angled lift
                  Load      element                          Stirrups - BSt 500S
                                         minimum                                        BSt 500S         reinforcement BSt 500S
                  group    thickness
Anchor type                              thickness
                              "s"         „s min”       „i”        „d”      „Ls”           „d”           „da”     „c”    „La”
                    [t]      [mm]          [mm]        [mm]        [mm]     [mm]          [mm]           [mm]    [mm]    [mm]
TKS-025-0400       2,5        80            90         150          8        550            -             Ø10     25      600
TKS-025-0520       2,5        100           90           -           -         -            -             Ø10     25      600
TKS-050-0580       5,0        100           120        150          10       700         2 x Ø12          Ø12     35      1000
TKS-050-0790       5,0        100           120        150          10       750         2 x Ø12          Ø12     35      1000
TKS-050-0900       5,0        120           120        150          10       800         2 x Ø12          Ø12     35      1000
TKS-075-0750       7,5        120           140        150          10       750         2 x Ø14          Ø20     40      1000
TKS-075-1150       7,5        140           140        150          10       900         2 x Ø14          Ø20     40      1000
TKS-100-0870       10,0       140           160        150          10       800         2 x Ø14          Ø20     50      1150
TKS-100-1300       10,0       160           160        150          10       950         2 x Ø14          Ø20     50      1150
TKS-150-1080       15,0       160           200        150          12       1050        2 x Ø14          Ø25     80      1200
TKS-150-1550       15,0       200           200        150          12       1200        2 x Ø14          Ø25     80      1200
Note:
    -   Type of mesh reinforcement is determined by a specialist.
                                                         Picture 48
                                                                                                TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                         3D-VERSION 08-2013
                                                                                                                                     Table 27
                                                          The
                                      Concrete                                                              Permissible angled lift forces
                                                     recommended
                          Load         element                               Permissible axial forces
                                      thickness
                                                       minimum                                                           ß ≤ 45°
Anchor type               group                        thickness
                                         „s”            „s min”            fcu≥ 15 N/mm² fcu≥ 25 N/mm²      fcu≥ 15 N/mm²       fcu≥ 25 N/mm²
                           [t]           [mm]               [mm]               [kN]             [kN]             [kN]                [kN]
                                          80                                   25,0            25,0             20,0                25,0
TKS-025-0400                             100                                   25,0            25,0             20,0                25,0
                           2,5                               90
                                         120                                   25,0            25,0             20,0                25,0
TKS-025-0520                             100                                   25,0            25,0             20,0                25,0
                                         100                                   41,0            50,0             32,8                50,0
                                         120                                   44,2            50,0             35,3                50,0
TKS-050-0580
                           5,0           140                120                47,0            50,0             37,6                50,0
                                         160                                   50,0            50,0             40,0                50,0
TKS-050-0900                             120                                   50,0            50,0             40,0                50,0
                                         120                                   66,0            75,0             52,8                75,0
TKS-075-0750                             140                                   70,0            75,0             56,0                75,0
                           7,5                              140
                                         160                                   75,0            75,0             60,0                75,0
TKS-075-1150                             140                                   75,0            75,0             60,0                75,0
TKS-100-0870                             140                                   95,0            100,0            76,0                100,0
                          10,0                              160
TKS-100-1300                             160                                  100,0            100,0            80,0                100,0
TKS-150-1080                             160                                  144,0            150,0            115,2               150,0
                          15,0                              200
TKS-150-1550                             200                                  150,0            150,0            150,0               150,0
It is recommended that the angle ß, where possible, should not exceed 30°.
TPA anchors are fitted with a welded base plate (picture 49). They are designed to a load force in the range of 2,5t, 5,0t and
10,0t (table 28). This type of anchors is mostly used in thin panels. It is essential, that this type of anchor is used in combination
with rebar steel (picture 50).
TPA anchors are available in two variants: shot blasting and hot galvanizing(TV) – table 28.
TPA-ANCHOR ARRANGEMENT
                           Picture 52                                                         Picture 53
                                                                                                                             Table 29
                                                                                                   Permissible axial forces and
                              Minimum
                   Load                                                                            Permissible angled lift forces
                              thickness      H          e         R          d         L
 TPA-anchor        group                                                                                      ß ≤ 45°
    type                         "s"                                                            fcu≥ 15 N/mm²        fcu≥ 25 N/mm²
                      t          mm        [mm]       [mm]      [mm]       [mm]       [mm]            [kN]                 [kN]
TPA-025-055          2,5         85          55        11         37         8        200             10,8                14,0
TPA-025-085          2,5         115         85        11         37        10        250             17,0                21,0
TPA-025-120          2,5         150        120        11         37        10        300             25,0                25,0
TPA-050-055          5,0         90          55        15         47        12        450             14,0                18,6
TPA-050-065          5,0         100         65        15         47        12        450             16,0                20,8
TPA-050-095          5,0         125         95        15         47        12        450             28,0                35,0
TPA-050-110          5,0         145        110        15         47        12        450             34,0                43,8
TPA-100-115         10,0         150        115        15         59        16        600             34,5                44,5
The 3D Lifting Systems TH2 (picture 54) and THR2 (picture 55) are made of high quality steel and they are designed with a
safety factor of 5. Every Lifting System is individually tested and is supplied with a unique certificate. The safety factor is 3 times
the working load.
The special design of the clutch ensures a tight and safe connection to the anchor. Obviously, the shackle fits the hemispherical
cavity created by recess former perfectly.
The lifting clutch, recess former and anchor only correspond when they are from the same load group. The load group is clearly
marked on the lifting clutch ( table 30 and table 31).
                              TH2                                                                THR2
                            Picture 54                                                         Picture 55
                                                                                                    TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                                3D-VERSION 08-2013
OPERATING INSTRUCTIONS
Picture 60 Picture 61
When pitching the concrete unit with the 3D Lifting System, the nose must be in the same direction with the load (picture 61).
Due to the counterweight of the nose, the shackle remains connected, even in an unloaded state. To release the 3D Lifting
System, the load hook is lowered and the shackle is turned up and out (picture 62 and picture 63). Only after the Lifting System
is completely detached of the recess and anchor, the crane can be withdrawn. The 3D lifting System can remain attached to the
crane hook till another use.
In common with all lifting devices, the lifting system TH2, THR2 must be checked at least twice a year by trained personnel. Any
defects found should be corrected before use. It is important to determine the amount of wear. The lettering and identification of
the lifting system must be visible. If the shackle is deformed or the mouth opening is enlarged, the 3D Lifting System must be
taken out of use and cannot be repaired. If the limiting dimensions given in the table 32 and table 33 are exceeded for “H” or fall
below for “M” a further use of the Lifting System is not safe. Repairs, especially welding operations to the Lifting System are
strictly forbidden. Do not combine our products with accessories from other manufacturers.
                          Picture 65                                                       Picture 66
                                                                                        TECHNICAL MANUAL - 3D SYSTEM
                                                                                                              3D-VERSION 08-2013
                                                                                                                         Table 32
                                                               H                         M                     CALIBER
                                    TH2
           TYPE                                            MAXIMUM                   MINIMUM                  “GO/NO-GO”
                                  NUMBER
                                                             [mm]                      [mm]                     NUMBER
TH2 13                             44057                      13                         5,5                     46193
TH2 25                             44058                      18                         7                       46194
TH2 50                             44059                      24                         9                       46195
TH2 100                            44060                      33                         12                      46196
TH2 200                            44061                      45                         18                      46197
TH2 320                            44062                      56                         25                      46198
TH2 450                            44719                      56                         25                      46199
                                                                                                                         Table 33
                                                               H                         M                     CALIBER
                                   THR2
           TYPE                                            MAXIMUM                   MINIMUM                  “GO/NO-GO”
                                  NUMBER
                                                             [mm]                      [mm]                     NUMBER
THR2 40/50                         45281                      24                         9                       46195
THR2 75/100                        45279                      33                         12                      46196
The dimension “M” must be checked in this zone with risk of fracture during usage.
Picture 67 Picture 68
The “H” dimension must be checked in at least 3 zones with risk of enlargement during usage.
                  Picture 69
                                                                                               TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                      3D-VERSION 08-2013
PRIMARY ZONE
Picture 70 Picture 71
SECONDARY ZONE
Picture 72 Picture 73
Picture 74 Picture 75
To link together the TH2 lifting clutch with the T-Slot-anchor there must be a cavity in the concrete. This cavity has a spherical
form and can be either a half ball or a small ball slot. Different aiding kits are available to realize this recess. For a half ball cavity
the TH2 lifting clutch can be attached in any direction and eventually can turn during lifting in the cavity till the lifting hook has
arrived in its good position. The most usable is the RB recess former.
                                                                                       TECHNICAL MANUAL - 3D SYSTEM
                                                                                                            3D-VERSION 08-2013
RECESS FORMERS
The anchors are fitted in the mould with a recess former. The cavity former, enables the lifting clutch to fit over the anchor.
Because of the special design, there is no sharp edge in the precast element. Obviously, the recess formers are available in the
same range as the lifting clutches and the anchors. This is indicated by a load group, marked on the top.
The formers are mounted on the mould with fixing plates. After de-mould of the element, the recess formers can be removed
easily. Another option is represented by the magnetic and steel recess formers.
The standard recess formers are manufactured out of rubber shore 65° - 70°. The rubber used has a good resistance to de-
mould oil. The formers will keep their original shape, even when they are heated up to 120°C. They can be used many times.
The magnetic recess formers are manufactured without rubber.
The RB recess former is used in combination with the T slot anchor, O-anchor, TPA anchor, TKS anchor and TSG anchor.
                                                                                                                 Table 34
  Rubber recess former       Load
                                        R    ØA     B     ØC     ØD     H
           RB                group
Description Product no. [t] [mm] [mm] [mm] [mm] [mm] [mm]
The SRB recess former is used in combination with the T slot anchor, O-anchor, TPA anchor, TKS anchor and TSG anchor.
Because of the minimal width it is often used for thin elements, such as panels.
                                                                                                             Table 35
  Rubber recess former       Load
                                       ØA    B     ØC      h     M      N
          SRB                group
Description Product no. [t] [mm] [mm] [mm] [mm] [mm] [mm]
The RBK recess former is used in combination with the TKA tilt-up anchor
                                                                                                                       Table 36
  Rubber recess former       Load
                                        R    ØA     B      h     M      N
          RBK                group
Description Product no. [t] [mm] [mm] [mm] [mm] [mm] [mm]
The RBP recess former is used in combination with the P anchor with collar
                                                                                                                           Table 37
   Rubber recess former           Load
                                                   h        ØA            B        ØC      ØD
            RBP                   group
                  Product
   Description                          [t]     [mm]        [mm]         [mm]      [mm]    [mm]
                    no.
RBP-13-55 shore       44809         1,3          36          10           7        18,5     63
The RBP PU recess former is used in combination with the P anchor with collar. This type can be supplied on request.
                                                                                                                           Table 38
                                  Load
   Recess former RBP-PU                            h        ØA            B        ØC      ØD
                                  group
The MPB can be used in combination with a P anchor. These recess formers are mostly applied in an upside down position.
                                                                                                                           Table 39
 Magnetic recess former          Load
                                              ØA       B          ØC          ØD     h      R
          MPB                    group
 Description    Product no.       [t]         [mm] [mm] [mm] [mm] [mm] [mm]
The SBK recess former is made of steel S355JO and is used in combination with T slot anchor, O anchor, TPA anchor, TKS
anchor and TSG anchor. When these anchors are used a rubber ring RR should be fitted as well. These recess formers are
mostly applied in an upside down position.
                                                                                                                 Table 40
 Round steel recess former     Load
                                       ØA      B    ØC        ØD      h         R
           SBK                 group
Description Product no. [t] [mm] [mm] [mm] [mm] [mm] [mm]
The SBKM recess former is made of stainless steel W 1.4305 EN 10088 and is used in combination with T slot anchor, O
anchor, TPA anchor, TKS anchor and TSG anchor. When these anchors are used a rubber ring RR should be fitted as well.
These recess formers are mostly applied in an upside down position.
                                                                                                                 Table 41
 Round steel recess former     Load
                                       ØA      B    ØC        ØD      h         R
          SBKM                 group
Description Product no. [t] [mm] [mm] [mm] [mm] [mm] [mm]
RR – RUBBER RING
The rubber ring is used when a T slot anchor, O anchor, TPA anchor, TKS anchor and TSG anchor is fitted in a SBK or a SBKM
steel recess former.
                                                                                                                 Table 42
                              Load
     Rubber ring RR                      D               d                  t
                              group
                  Product
  Description                  [t]      [mm]         [mm]              [mm]
                    no.
RR-013             43966       1,3       21              10               11
RR-025             43967       2,5       31              14               12
RR-040/050         43968       5,0       38              20               14
RR-075             43813       7,5       49              24               20
RR-100             43969      10,0       49              28               20
                                                                                                  TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                 3D-VERSION 08-2013
IP – FIXING PLATE
                                                                                                                           Table 43
                                               Load
          Fixing plate IP                                                     Thread
                                               group
  Description        Product no.                  [t]                           M
IP-013                  43913                    1,3                           M8
IP-025                  43914                    2,5                           M10
IP-050                  43915                    5,0                           M10
IP-075/100              43916                  7,5/10,0                        M12
IP-150/200              43917                15,0/20,0                         M12
IP-320                  43918                   32,0                           M16
IPD – FIXING PLATE WITH THREAD ROD / IPDV – FIXING PLATE WITH THREAD ROD AND WING NUT
                                                                                                                           Table 44
                                       Load
Fixing plate with thread rod IPD                                Thread               L
                                       group
   Description        Product no.        [t]                      M                 [mm]
IPD-013                 44051            1,3                     M8                  100
IPD-025                 44052            2,5                    M 10                 100
IPD-050                 44053            5,0                    M 10                 100
IPD-075/100             44054          7,5/10,0                 M 12                 100
IPD-150/200             44055         15,0/20,0                 M 12                 100
IPD-320                 44056           32,0                    M 16                 100
The TDV is used for mounting the recess former on the steel formwork. It is fitted with two wing nuts, of which the one at the end
is locked.
                                                                                                                         Table 45
                                      Load
               TDV                                         Thread                    L
                                      group
                       Product
   Description                         [t]                  [mm]                    [mm]
                         no.
TDV-025                 44575        0,7–2,5                    M8                  160
TDV-050                 44576        3,0–5,0                    M8                  160
TDV-100                 44577        7,5–10,0                   M12                 160
TDV-200                 44578       12,5-22,0                   M16                 160
The OPR is available for mounting the RB recess former to the formwork. The recess former can be fitted easily on the two pins.
The OPR also ensures that the recess former remains completely closed while pouring the concrete. The OPR can be nailed or
welded to the formwork.
                                                                                                                      Table 46
                                Rubber recess           Load
    Holding plate OPR                                                    D      L           H
                                  former RB             group
 Description     Product no.     Description              [t]          [mm]   [mm]         [mm]
OPR-013              46058          RB-013                1,3            66    38           17
OPR-025              46059          RB-025                2,5            80    50           20
OPR-050              46060          RB-050                5,0          100     60           26
OPR-075/100          46061       RB-075/100             7,5/10,0       128     80           31
OPR-150/200          46062       RB-150/200         15,0/20,0          170     110          39
OPR-320              46063          RB-320               32,0          236     128          54
                                                                                         TECHNICAL MANUAL - 3D SYSTEM
                                                                                                               3D-VERSION 08-2013
The TAF-protection cover is ensures a good protection for the anchor and the recess against water, ice or dirt.
                                                                                                                         Table 47
                                           Load
     Protection cover TAF                                       D
                                           group
  Description     Product no.                [t]              [mm]
Picture 76
Picture 77
The fixing plate with a threaded rod IPD or IPDV and the anchor are fitted in the opened recess former (picture 78). The recess
former is mounted to the formwork with the wing nut (picture 79). The nut is then tightened securing the recess former and the
anchor firmly in position.
                                                                                       TECHNICAL MANUAL - 3D SYSTEM
                                                                                                            3D-VERSION 08-2013
Picture 78 Picture 79
Picture 80
In case of wooden formwork, the recess former can be mounted with the OPR mounting plate. The pins on the OPR ensure that
the recess former remains closed during the process of pouring concrete. The OPR is mounted to the formwork with nails
(picture 80).
                         CORRECT                                                       INCORRECT
                          Picture 81                                                      Picture 82
Two pieces of re-bar steel can be inserted in the recess former holes (picture 83). With the use of these rods, the former bends
open and it can be taken from the anchor (picture 84, picture 85)). Before this, the excessive concrete should be removed. Do
not use a hammer or any other tools. This can damage the recess former.
                                                                                         TECHNICAL MANUAL - 3D SYSTEM
                                                                                                               3D-VERSION 08-2013
The steel recess formers are always used in combination with a rubber ring (picture 86). The magnetic recess formers are
always used in combination with a P anchor with collar (picture 88). The rubber ring ensures that the anchor is fitted tight in the
former. Moreover, the rubber ring prevents concrete pouring in the recess former.
It is recommended that both the anchor head and rubber ring are greased with formwork oil before installation. When the pre
cast element is lifted out of the mould, the anchor and the rubber ring detach themselves easily from the recess former.
When using the magnetic recess former it is very important that the surface of the formwork is clean. After de-mould the
magnetic former can be removed from the formwork with a screw.
Welding to the anchors, for instance, the reinforcement mesh is NEVER allowed. The choosing of the material for the anchors
in order to obtain the smallest anchor in relation to the highest safety does not allow any welding under normal circumstances.
All the situations mentioned in this leaflet are valid for most of the cases. For variant situations or elements for which this
instruction cannot be used you can always get advice from “Terwa”.
                                                                                          TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                3D-VERSION 08-2013
The best way of calculating the lifting anchors is step by step. The following steps are in the correct sequence:
Table 48 of utilized load capacity for standard anchors as a function of the concrete strength and the thickness of the element.
                                                                                                                                                                            Table 48
                           Thickness of the element                                 Anchor load [t]
    Standard anchor                                      Concrete strength         Concrete strength          Concrete strength
                                     [mm]
                                                             10 MPa                    15 MPa                     20 MPa
                                      60                       0,740                    0,990
                                      70                       0,925                    1,230
        T 013-120
                                      80                       1,140                    1,300
                                      90                       1,300
                                      80                       1,350
                                      90                       1,600                      1,830
        T 025-170                    100                      1,850                       2,150
                                     110                       2,170                      2,500
                                     120                      2,500
                                     130                       3,320                      4,660
                                     140                      3,700                       4,970
        T 050-240                    150                       4,120                      5,000
                                     160                      4,560
                                                             Picture 89
                                                                                                                      Table 49
                           General dates:                                 Symbol            De-mould               Mount
Concrete strength at de-mould [N/mm² ]                                                          20
Concrete strength on site [N/mm² ]                                                                                     45
Weight for element [kN]                                                      G                   50                    50
Mould area [m ²]                                                             A                   10
Cable angle factor at de-mould (ß = 15,0°)                                   z                  1,04
Cable angle factor on site (ß = 30,0°)                                       z                                         1,16
Lifting load coefficient at de-mould                                          f                 1,3
Lifting load coefficient on site                                              f                                        1,3
Form factor                                                                   y                 1,2
Adhesion to mould factor [kN/m²]                                              q                 1,0
Anchor number for de-mould                                                    n                  4
Anchor number for transport on site                                           n                                         4
- In the prefab factory: Ha=q x A= 1,0 x 5 x 2 = 10 kN (q = 1,0; oiled steel mould – page 6)
Force per anchor: F = [(G x y + Ha) x f x z]/n=[(50 x 1.2 + 10) x 1.3 x 1.04] / 4 = 23,66 kN → normative
The situation at the works during de-mould is for the choice of the loading class normative T- Slot-anchor: T -25 kN
                                                                                           TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                3D-VERSION 08-2013
According to the following table, the T-Slot-anchor type T -25-120 will already do at a concrete strength of 20 N/mm². The
anchor length L=120mm is according with the rules indicated on page 21.
“Terwa” B.V. can execute for you a special calculation, for which the exact anchoring length can be calculated.
Final conclusion:
The floor element can be hoisted with 4 T-Slot-anchors; Type T -25-120 in untreated, hot dip galvanized or in stainless carbon
steel.
Chosen positions:
Length direction: ca. 1/5 of the length = 1,00 m from the edge
Transverse direction: ca. 30% of the width = 0,50 m from the edge
                                                                                                                           Table 50
                                Built in
                                                                        Concrete strength at first load: [kN]
      Anchor type               depth
                                 [mm]                   15 N/mm²                     20 N/mm²                   25 N/mm²
T 013-0065                        73                       13,0                         13,0                       13,0
T 013-0085                        93                       13,0                         13,0                       13,0
T 013-0120                        128                      13,0                         13,0                       13,0
T 025-0085                        96                       22,4                         25,0                       25,0
T 025-0120                        131                      25,0                         25,0                       25,0
T0 25-0170                        181                      25,0                         25,0                       25,0
T 050-0120                        115                      32,2                         39,0                       45,3
T 050-0180                        195                      50,0                         50,0                       50,0
T 050-0240                        255                      50,0                         50,0                       50,0
T 075-0150                        165                      66,3                         75,0                       75,0
T 075-0300                        315                      75,0                         75,0                       75,0
T 100-0170                        185                      83,3                        100,0                      100,0
T 100-0340                        355                     100,0                        100,0                      100,0
                                For heavy T-Slot-anchors a minimum distance of 500 mm is applicable
T 150-0300                        316                     132,0                        150,0                      150,0
T 150-0400                        416                     146,0                        150,0                      150,0
T 200-0340                        356                     138,9                        168,4                      195,6
T 200-0500                        516                     153,1                        185,6                      200,0
T 320-0700                        727                     159,8                        193,8                      225,0
T 320-1200                       1227                     164,4                        199,3                      231,5
                                                                                             TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                    3D-VERSION 08-2013
Weight calculation:
                            Picture 90
                                                                                                                            Table 51
                        General dates:                                   Symbol         De-mould         Pitching         Mount
Concrete strength at de-mould [N/mm² ]                                                     20               20
Concrete strength on site [N/mm² ]                                                                                           45
Weight for element [kN]                                                      G               50
Mould area [m ²]                                                             A               10
Cable angle factor at de-mould (ß = 15.0°)                                   z              1,04
Cable angle factor at pitching (ß = 0.0°)                                    z                              1,0
Cable angle factor on site (ß = 30.0°)                                       z                                              1,16
Lifting load coefficient at de-mould                                         f              1,3
Lifting load coefficient at pitching                                         f                              1,3
Lifting load coefficient on site                                             f                                              1,3
Form factor                                                                  y              1,2
Adhesion to mould factor [kN/m²]                                             q              1,0
Anchor number for de-mould                                                   n               4
Anchor number for transport on site                                          n                                               2
Force per anchor: F = [(G x y + Ha) x f x z]/n=[(50 x 1.2 + 10) x 1.3 x 1.04] / 4 = 23,66 kN
                                                                                          TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                    3D-VERSION 08-2013
Force per anchor: F =(G x f x z)/n =(50 x 1.3 x 1.16) / 2 = 37,7 kN→ normative
The situation at the building area is for the choice of the loading class normative T-Slot-anchor: T -50 kN.
According to the table, the T-Slot-anchor type T -50-340 will already do at a concrete strength of 20 N/mm². (Minimum anchoring
force F= 43,8 kN for a wall thickness - 160 mm – table 52).
 “Terwa” B.V. can execute for you a special calculation, for which the exact anchoring length can be calculated
Final conclusion:
The floor element can be hoisted with 4 T-Slot-anchors; Type T -25-120 in untreated, hot dip galvanized or in stainless carbon
steel.
The facade element can be hoisted with 2 T-Slot-anchors type T -50-340 in untreated, hot dip galvanized or in stainless carbon
steel.
Chosen positions:
Length direction: ca. 1/5 of the length = 1,00 m from the edge. Transverse direction: in the middle of the material thickness
Table 52: Admissible break out forces for façade plates & beams:
In this table are listed values for forces on the T-slot anchor on the following conditions: the distance to the edge of the element
is more than 3 times the built in depth and the anchor is built in the middle of the material thickness a minimum distance of 500
mm. The values indicated in the table are the minimum anchor forces (kN) at indicated concrete strength (N/mm²).
                                                                                                                              Table 52
                          Built in             Wall
                                                                            Concrete strength at first load: [kN]
    Anchor type           depth             thickness
                           [mm]               [mm]           15 N/mm²          20 N/mm²            25 N/mm²              30 N/mm²
T 013-0120                  128                80               6,5                7,9                 9,2                 10,3
T 013-0120                  128               120               9,7               11,8                13,0                 13,0
T 013-0240                  248                80              12,6               13,0                13,0                 13,0
T 013-0240                  248               120              13,0               13,0                13,0                 13,0
T 025-0170                  181               100              11,5               13,9                16,2                 18,3
T 025-0170                  181               140              16,0               19,5                22,6                 25,0
T0 25-0280                  291               100              18,5               22,5                25,0                 25,0
T 025-0280                  291               140              25,0               25,0                25,0                 25,0
T 050-0240                  255               120              19,5               23,6                27,4                 31,0
T 050-0240                  255               160              25,9               31,4                36,5                 41,2
T 050-0340                  355               120              27,1               32,9                38,2                 43,2
T 050-0340                  355               160              36,1               43,8                50,0                 50,0
T 050-0480                  495               120              37,8               45,9                50,0                 50,0
T 050-0480                  495               160              50,0               50,0                50,0                 50,0
T 075-0300                  315               160              32,0               38,8                45,1                 51,0
T 075-0300                  315               200              40,0               48,5                56,3                 63,6
T 075-0540                  555               160              56,6               68,6                75,0                 75,0
T 075-0540                  555               200              70,7               75,0                75,0                 75,0
T 100-0340                  355               200              45,1               54,7                63,5                 71,8
T 100-0340                  355               250              56,3               68,2                79,2                 89,5
T 100-0680                  695               200              88,5               100,0              100,0                 100,0
T 100-0680                  695               250              100,0              100,0              100,0                 100,0
T 150-0400                  416               250              66,0               80,1                93,0                 105,1
T 150-0400                  416               300              79,1               98,9               111,4                 125,8
T 200-0500                  516               300              98,3               119,2              138,4                 156,4
T 200-0500                  516               350              114,5              138,9              161,3                 182,2
T 320-0700                  727               400              184,7              224,0              260,1                 293,9
                                                                                          TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                3D-VERSION 08-2013
Weight calculation:
                            Picture 91
                                                                                                                      Table 53
                           General dates:                                  Symbol             De-mould              Mount
Concrete strength at de-mould [N/mm² ]                                                            15
Concrete strength on site [N/mm² ]                                                                                     45
Weight for element [kN]                                                       G                   50
Mould area [m ²]                                                              A                    2
Cable angle factor at de-mould (ß = 0.0°)                                      z                  1,0
Cable angle factor on site (ß = 0.0°)                                          z                                      1,0
Lifting load coefficient at de-mould                                           f                  1,3
Lifting load coefficient on site                                               f                                      1,3
Form factor                                                                    y                  1,1
Adhesion to mould factor [kN/m²]                                              q                   3,0
Anchor number for de-mould                                                    n                    2
Anchor number for transport on site                                           n                                        2
- In the prefab factory: Ha=q x A= 3,0 x 5 x 0,4 = 6 kN (q = 3,0; oiled rough timber mould – page 6)
Force per anchor: F = [(G x y + Ha) x f x z] /n=[(50 x 1.1 + 6) x 1.3 x 1.0] / 2 = 39,65 kN → normative
The situation at the prefab factory is for the choice of the loading class normative T-Slot-anchor: T -50 kN
                                                                                          TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                3D-VERSION 08-2013
Final conclusion:
The floor element can be hoisted with 2 T-Slot-anchors type T -50-340 in untreated, galvanized or in stainless carbon steel.
Chosen positions:
Length direction: ca. 1/5 of the length = 1,00 m from the edge
Transverse direction: in the middle of the material thickness
                                                                                                                            Table 54
                                   Built in                     Wall                  Lifting force        Maximum weight of the
      Anchor type                  depth                     thickness                per anchor           element with 2 anchors
                                    [mm]                         [mm]                     [kN]                      [kN]
T 013-0120                           128                          80                      6,5                       10,0
T 013-0120                           128                         120                      9,7                       14,9
T 013-0240                           248                          80                      12,6                      19,4
T 013-0240                           248                         120                      13,0                      20,0
T 025-0170                           181                         100                      11,5                      17,7
T 025-0170                           181                         140                      16,0                      24,7
T 025-0280                           291                         100                      18,5                      28,5
T0 25-0280                           291                         140                      25,0                      38,5
T 050-0240                           255                         120                      19,5                      29,9
T 050-0240                           255                         160                      25,9                      39,8
T 050-0340                           355                         120                      27,1                      41,7
T 050-0340                           355                         160                      36,1                      55,6
T 050-0480                           495                         120                      37,8                      58,2
T 050-0480                           495                         160                      50,0                      76,9
T 075-0300                           315                         160                      32,0                      49,3
T 075-0300                           315                         200                      40,0                      61,5
T 075-0540                           555                         160                      56,6                      87,0
T 075-0540                           555                         200                      70,7                      108,7
T 100-0340                           355                         200                      45,1                      69,4
T 100-0340                           355                         250                      56,3                      86,5
T 100-0680                           695                         200                      88,5                      136,2
T 100-0680                           695                         250                     100,0                      153,8
T 150-0400                           416                         250                      66,0                      101,6
T 150-0400                           416                         300                      79,1                      121,7
T 200-0500                           516                         300                      98,3                      151,2
T 200-0500                           516                         350                     114,5                      176,2
T 320-0700                           727                         400                     184,7                      284,2
T 320-0700                           727                         500                     184,7                      354,6
When the concrete strength at first lifting has another value than 15 N/mm² of course the maximum weight of the elements is
different
At indication other tables can be made.
                                                                                           TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                  3D-VERSION 08-2013
Weight calculation:
Picture 92
                                                                                                                        Table 55
                           General dates:                                    Symbol             De-mould              Mount
Concrete strength at de-mould [N/mm² ]                                                              15
Concrete strength on site [N/mm² ]                                                                                      45
Weight for element [kN]                                                         G                   50
Mould area [m ²]                                                                A                   2
Cable angle factor at de-mould (ß = 30.0°)                                      z                  1,16
Cable angle factor on site (ß = 30.0°)                                          z                                      1,16
Lifting load coefficient at de-mould                                            f                  1,3
Lifting load coefficient on site                                                f                                       1,3
Form factor                                                                     y                  1,1
Adhesion to mould factor [kN/m²]                                                q                   3
Anchor number for de-mould                                                      n                   2
Anchor number for transport on site                                             n                                        2
- In the prefab factory: Ha=q x A= 3 x 5 x 0,4 = 6 kN (q = 3,0; oiled rough timber mould – page 6)
Force per anchor: F = [(G x y + Ha) x f x z] /n=[(50 x 1.1 + 6) x 1.3 x 1.16] / 2 = 45,99 kN → normative
                                                                                          TECHNICAL MANUAL - 3D SYSTEM
                                                                                                               3D-VERSION 08-2013
The situation at the prefab factory is for the choice of the loading class normative T-Slot-anchor: T -50 kN
Chosen positions:
Length direction: ca. 1/5 of the length = 1,00 m from the edge
Transverse direction: in the middle of the material thickness.
In table 56 an overview of the maximum weights has been given for the façade elements when using 2 T-Slot-anchors of the
types mentioned in the first column. For all cases in between or divergent positions, “Terwa” B.V. can make a special calculation
or make a special table for your factory.
The values mentioned in the table are the maximum weights of the elements at a concrete strength of 35 N/mm². At bringing in
a vertical position there is worked with a spring which is used with a top angle smaller than 60º(ß = 30,0°, table 5, page 8).
                                                                                                                           Table 56
                                                                Wall                    Force              Maximum weight of the
                                  Built in depth
        Anchor type                                          thickness                per anchor           element with 2 anchors
                                      [mm]                       [mm]                     [kN]                      [kN]
T 013-0120                             128                        80                      11,5                      15,2
T 013-0120                             128                       120                      13,0                      17,2
T 013-0240                             248                        80                      13,0                      17,2
T 013-0240                             248                       120                      13,0                      17,2
T 025-0170                             181                       100                      20,3                      26,9
T 025-0170                             181                       140                      25,0                      33,2
T 025-0280                             291                       100                      25,0                      33,2
T 025-0280                             291                       140                      25,0                      33,2
T 050-0240                             255                       120                      34,3                      45,5
T 050-0240                             255                       160                      45,7                      60,6
T 050-0340                             355                       120                      47,8                      63,5
T 050-0340                             355                       160                      50,0                      66,3
T 050-0480                             495                       120                      50,0                      66,3
T 050-0480                             495                       160                      50,0                      66,3
T 075-0300                             315                       160                      56,5                      75,0
T 075-3000                             315                       200                      70,5                      93,5
T 075-0540                             555                       160                      75,0                      99,5
T 075-0540                             555                       200                      75,0                      99,5
T 100-0340                             355                       200                      79,6                     105,5
T 100-0340                             355                       250                      99,2                     131,6
T 100-0680                             695                       200                     100,0                     132,6
T 100-0680                             695                       250                     100,0                     154,5
T 150-0400                             416                       250                     116,5                     185,0
T 150-0400                             416                       300                     139,5                     230,0
T 200-0500                             516                       300                     173,4                     265,3
T 200-0500                             516                       350                     200,0                     424,4
T 320-0700                             727                       400                     450,0                     424,4
T 320-0700                             727                       500                     450,0                     354,6
                                                                                             TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                  3D-VERSION 08-2013
Picture 93
                                                                                                                        Table 57
                           General dates:                                   Symbol               De-mould             Mount
Concrete strength at de-mould [N/mm² ]                                                              20
Concrete strength on site [N/mm² ]                                                                                      45
Weight for element [kN]                                                         G                   50
Mould area [m ²]                                                                A                    1
Cable angle factor at de-mould (ß = 15.0°)                                      z                  1,04
Cable angle factor on site (ß = 30.0°)                                          z                                       1,16
Lifting load coefficient at de-mould                                            f                   1.3
Lifting load coefficient on site                                                f                                       1.3
Form factor                                                                     y                   1,2
Adhesion to mould factor [kN/m²]                                                q                   1,0
Anchor number for de-mould                                                      n                    2
Anchor number for transport on site                                             n                                        2
In free storage, the façade element will be brought to a vertical position by use of a TKA anchor. At bringing in a vertical position
there is worked with an equator to prevent that the angle to the concrete becomes smaller than 75º(ß = 15.0°, table 5, page 8).
At this time, the element still rests on the floor, so that the TKA anchors only hoist half of the weight. Only when the element is in
a vertical position it can be hoisted and the TKA anchors will be loaded with the full weight. That is why the bringing of the
element into a vertical position is not a normative loading. While lifting with an equator:
     -     The angle to the concrete is about 75º (ß = 15,0°, table 5, page 8). The cable angle factor will be z=1,04.
Also will be taken into account:
     -     A lifting load factor of 1,3 (table 3, page 7).
The element will be built up with the aid of a turning crane. There is worked with 2 hooks equator to prevent that the angle to the
concrete becomes about 60º (ß = 30,0°, table 5, page 8).
The cable angle factor will be z=1,16. Also will be taken into account: A lifting load factor of f=1,3 (table 3, page 7).
- In the prefab factory: Ha=q x A= 1,0 x 5 x 0,2 = 1 kN (q = 1.0, oiled steel mould – page 6)
Force per anchor: F = [(G x y + Ha) x f x z]/n=[(50 x 1.2 + 1) x 1.3 x 1.04] / 2 = 41,24 kN → normative
                                                                                                  TECHNICAL MANUAL - 3D SYSTEM
                                                                                                                            3D-VERSION 08-2013
The situation at the building area is for the choice of the loading class normative TKA anchor: TKA-50
Determination of the length of the TKA anchor:
Because of the short range of products, an additional reinforcement is necessary
Conclusion:
The facade element can be hoisted with two TKA anchors Type TKA -50-240 in black or in zincked carbon steel
Chosen positions:
Length direction: ca. 1/5 of the length = 1,00 m from the edge
Transverse direction: in the middle of the material thickness
Table 58: Admissible break out forces for façade plates & beams
In this table are listed values for forces on the TKA anchor on the following conditions: the distance to the edge of the element is
more than 3 times the built in depth and the anchor is embedded in the middle of the material thickness a minimum distance of
500 mm.
Concrete strength in N/mm²
                                                                                                                                      Table 58
                             Built in               Wall
                                                                                    Concrete strength at first load: [kN]
         Type                depth               thickness
                              [mm]                  [mm]         10 N/ mm²        15 N/mm²        20 N/mm²        25 N/mm²         30 N/mm²
TKA 013-120                    128                   80               5,0             6,5             7,9             9,2            10,3
TKA 013-120                    128                   120              7,4             9,7            11,8            > 13            > 13
TKA 025-170                    181                   100              8,8            11,5            13,9            16,2            18,3
TKA 025-170                    181                   140              12,2           16,0            19,5            22,6             >25
TKA 050-240                    255                   120              14,8           19,5            23,6            27,4            31,0
TKA 050-240                    255                   160              19,7           25,9            31,4            36,5            41,2
THREAT ANALYSIS
                                                                                                                                      Table 59
                          THREAT                               RISK                         COUNTER MEASUREMENTS
Mechanical threat by finger injuries at screwing in hoisting           C: One and two hand operation is possible; at least: trained personnel at
                                                                S
noose                                                                  works and at the building area
                                                                S
Overload of the transport anchor by wrong hoisting direction           UI: load values have taken into account wrong hoisting directions
S= small
UI=user instruction
                                                                                         TECHNICAL MANUAL - 3D SYSTEM
                                                                                                              3D-VERSION 08-2013
DISCLAIMER
“Terwa” B.V. is not liable for deprivations to the products delivered by her caused by wear. “Terwa” B.V. is also not liable for
damage caused by inaccurate and/or injudicious handling and use of the products delivered by her and/or use of these for
purposes for which they are not produced. The responsibility of “Terwa” B.V. is furthermore limited in conformity to article 13 of
the “Metaalunie” conditions, conditions which are applicable for all deliveries of “Terwa” B.V.