Throughfeed Blast Cleaning Machine DT
Throughfeed Blast
Cleaning Machine DT
Automatic, continuous, and dust-free
blast cleaning
Contrary to conventional drum-type through-
feed machines, the DT is equipped with a
polygon-shaped trough. The blast wheels are
07003
positioned in longitudinal axis directly above
the flow of castings.
The advantages of this unique design are:
• Continuous blast cleaning of mixed castings
including runners and risers, without any
manual operation
• Polygon-shaped trough ensures full exposure
of all surfaces to the blast streams and gentle
tumbling of castings
• Distribution of the castings over a relatively
long blast cleaning zone
• Position of the blast wheels directly above
the flow of castings ensures optimum utili-
zation of abrasive energy
• No moving plant components within the
blasting zone, no jamming of workpieces
• Controlled throughput of castings
• High capacity for up to 35 t/h of parts
weighing up to 150 kg each
• Easy integration of the DT into existing
production lines
2
Efficiency and Precision:
DISA Blast Wheels
1 Blade DISA blast wheels are renowned for high Cabin top of a DT 14-
2 Opening 1050 equipped with
capacity and maximum energy efficiency. 10 blast wheels
3 Control cage
4 Impeller These blast wheels come in various power 10280
ratings, for a high degree of flexibility. Due
Cross-sectional
view of a blast
to the reversibility of the blast wheel rotation,
wheel the range of applications can be considerably
extended. The amount of abrasive can be ad-
justed from the operator’s panel. The abrasive
Anti-clockwise Clockwise is mechanically pre-accelerated and delivered
to the blast wheel in a continuous stream.
This ensures optimal utilisation of the power
from the drive motors.
Blast Blast
pattern pattern High wear resistant material ensures maximum
service life of the blast wheel. Unique design
features allow for rapid and simple replacement Throughfeed blast
of wear parts. cleaning machine DT 20
8531
3
Mode of Operation of the
Blast Cleaning Machine DT
Rocking motion of The trough rocks back and forth about its
the polygon-shaped
longitudinal axis through about 120°. The
trough about its
longitudinal axis polygon shape of the trough ensures gentle
for gentle tumbling tumbling of the castings.
of the castings
The frequency of the rocking motion of the
trough and the abrasive supply to the blast
wheel are controlled depending on the flow
rate and volume of castings. This ensures
optimum results even when the flow rate
is irregular. The high-power abrasive streams
aimed at the castings from above reach and
thorougly clean all surfaces and interior
passages (see left figure).
After passing through the blasting zone,
the castings enter the section, where, as the
trough continues its rocking and gentle
tumbling of the castings, all remnants of
abrasive are carefully removed from the
cavities and inter nal passages of the
castings.
Castings within the blasting
zone of the machine
3710
The drum construction
is adapted to the
shape and geometry
of the workpieces
3634
4
Integration into the
Production Line
Continuous
production flow
from moulding
to blast cleaning
07005
1. Moulding
+ Pouring
2. Cooling
3. Blast cleaning
Loading of A unique design makes it easy to integrate
blast cleaning
machine through the DT blast cleaning machine into existing
entrance flap production lines. So easy in fact, that its applica-
3712
tion as an integral part of a production line out-
numbers its use as a single unit. The figures show
a typical example of a continuous production
flow in which castings leave the moulding line
and pass through the cooling and separating
stations into the blast cleaning station without
Blast cleaned any manual operation or floor transportation.
castings being
moved by This production line integration offers the
an oscillating
following advantages:
conveyor
3711 • Entirely automatic, continuous production flow
• Integrated cooling of castings and sand
• Recovery of moulding sand and core sand
during shot blasting by means of magnetic
separator
• Low pollution through complete control and
Electric
adjustment
capture of dust throughout the production
of trough line right from punchout to cleaned castings
inclination
06087 • Minimum floor space requirements and flexi-
bility of the layout to meet all production flow
needs
5
Examples of Workpieces
and Applications
C 1655
C 1656
C 3159
C 3028
C 4867
Pre assembled plant in
manufacturing shop
70022
The DT 14 throughfeed
blast cleaning machine for
economical, low-pollution,
non-hazardous operation
3707
DT 20 throughfeed blast
cleaning machine
8527
6
Technical
Data
C 4872
C 8918
C 2462
C 1661
C 2456
B
F
C
E
D
DT 14 DT 17 DT 20
Type* DT 14- 450
DT 14- 650 DT 17- 650 DT 20- 650
DT 14- 850 DT 17- 850 DT 20- 850
DT 14-1050 DT 17-1050 DT 20-1050
Throughput** 8 to 25 t/h 15 to 33 t/h 15 to 38 t/h
Max. workpiece weight 150 kg 150 kg 150 kg
Max. workpiece diagonal 850 mm 980 mm 1150 mm
Number of blast wheels** 4 to 10 6 to 10 6 to 10
Power per blast wheel 37 to 45 kW 37 to 45 kW 37 to 45 kW
Max. sand separation 150 kg/min 150 kg/min 150 kg/min
Air required for dust collection 250 to 560 m3/min 500 to 640 m3/min 540 to 710 m3/min
Dimensions approx. A 12 300 – 17 000 mm 14 400 – 17 600 mm 15 690 – 19 590 mm
B 6 800 – 9 600 mm 8 400 – 10 400 mm 8 850 – 9 250 mm
C 6 900 – 8 960 mm 8 800 – 9 250 mm 9 500 – 10 000 mm
D 1 700 – 1 690 mm 1 350 – 1 690 mm 1 650 – 1850 mm
E 3 600 – 4 040 mm 3 620 – 3 980 mm 4 070 – 4 300 mm
F 5 100 – 7 020 mm 5 940 – 7 420 mm 6 150 – 6 550 mm
* Machine type depends on the diagonal dimension of the largest workpiece to be cleaned.
** Blasting capacity and number of blast wheels depend on the bulk density and the surface condition
of the workpieces to be cleaned. Further machine types upon request.
7
DISA GROUP
Founded in 1900, DISA is the world's leading
supplier of foundry equipment and metal
surface finishing systems.
With factories, sales and service offices in
three continents and an extensive agent
network, DISA serves international industrial
manufacturers, foundries and metalworking
industries with leading-edge technology and
service solutions tailored to their specific needs.
For more information, please visit
www.disagroup.com
For illustrative purposes the DISA equipment may be shown
without any warning labels and with some of the protective
guards removed. The warning labels and guards must always
be in place when the equipment is in use.
The technical data are not binding. They are not warranted
characteristics and are subject to change. Please consult
Conditions of Supply stipulated in the relevant quotations.
DISA Industrie AG, Switzerland,
CH-8184 Bachenbülach, Tel +41 44 815 4000,
Fax +41 44 815 4001, info.ch@disagroup.com
DISA Industries s.r.o., Czech Republic,
Příbram I, CZ-261 01, Tel +420 318 479 111,
Fax +420 318 479 333, info.pribram@disagroup.com
DISA Industries A/S, Russia,
Moscow Rep. Office, RU-123557 Moscow,
Tel +7 495 737 0104, disa-moscow@yandex.ru
DISA Industries, Inc., USA,
Oswego, IL 60543, Tel +1 630 820 3000,
Fax +1 630 820 9672, disasales@disagroup.com
DISA INDIA Ltd., India,
Bangalore 560 001, Tel +91 80 2210 9381,
Fax +91 80 2210 9382, bangalore@disagroup.com
DISA Trading (Shanghai) Co. Ltd., P.R.China,
Shanghai 200051, Tel +86 21 6113 1777,
Fax +86 21 6113 1788, disash@disagroup.com
DISA K.K. Head Office, Japan,
Nagoya 460-0002, Tel +81 52 950 7260,
Fax +81 52 950 9450, office@disagroup.com
DISA® is a registered trademark; © DISA Industrie AG, Switzerland, 2007;
Printed in Germany by Kraft; Reg. Nr. DT · 2010 · 7e · 10 08 00
