OPERATING MANUAL

Gilson Economy 8in Sieve Shakers

SS-15 & SS-15D

SS-15 SS-15D

Rev: 05/07/2015

PHONE: 800-444-1508 P.O. Box 200, Lewis Center, Ohio 43035-0200 FAX: 800-255-5314
740-548-7298 E-mail: customerservice@gilsonco.com Website: www.globalgilson.com 740-548-5314
Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

SAFETY INSTRUCTIONS
Whether you are the owner, employer, operator, or maintenance person for this machine, safety is your responsibil-
ity. You are responsible for operating and maintaining this equipment in compliance with these instructions and for
using common sense. Review and completely understand the operating and safety instructions before using this
machine.

WARNING!
This machine operates on electric current. Improper operation could result in electric shock, electrocution,
or an explosion!

1. ALWAYS make sure the motor and other electrical components are appropriate and properly configured for
your intended use and available power source. The standard Gilson Economy 8in Sieve Shaker comes with
a 1/4hp motor wired for 115V/60Hz. It can also be ordered with special wirings: 230/50. Motors are NOT
explosion-proof.

2. ALWAYS check electrical wiring for loose connections and for pinched or frayed wiring.

3. ALWAYS use a properly-wired, three-pronged plug, or otherwise ground the machine. Connect the machine to
a properly-wired, three-pronged receptacle. Make sure the cord is located where no one will trip or get tangled
in it.

4. ALWAYS disconnect and lock out power supply before performing maintenance and repairs.

WARNING!
WARNING: DO NOT operate the machine without having all covers and case in place.

WARNING: ALWAYS level the machine prior to operation.

WARNING: Stop the machine immediately and re-level if excessive vibration or machine movement occurs.

WARNING: DO NOT operate the machine without making sure all three clamps on the top platform are secure.

WARNING: Use caution to avoid pinching fingers when raising or lowering the sieve cover and when tightening
the end clamp knobs.

WARNING: The electric motor on this machine has internal thermal protection. If the motor shuts off from overload,
the machine may restart by itself after cooling off, unless the machine is unplugged during cool-down.

WARNING: Keep all parts of your body away from moving parts of the machine while it is operating.

WARNING: ALWAYS unplug or disconnect machine from the power source when the unit is not in operation.

WARNING: ALWAYS wear safety glasses when operating, maintaining, or repairing this machine.

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Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

Table of Contents
Page

Safety Instructions 2

Table of Contents 3

1.0 Unpacking & Set-Up 4

2.0 Operating Instructions 4

3.0 Maintenance 5
3.1 Cleaning the Unit 5
3.2 Drive Belt 5
3.3 Motor 6
3.4a Timer 6
3.4b Digital Timer 6
3.5 Main Shaft 6
3.6 Reassembly of the Unit 6

4.0 Troubleshooting 6

5.0 Sieving Accuracy 7

6.0 Parts Diagram 8

6.1 SS-15 8

7.0 Parts List 9

7.1 SS-15 Parts List 9

8.0 Additional Information 10

8.1 Gilson Test Sieves 10
8.2 Test Sieve & Screen Tray Verification & Services 11
8.3 8in Diameter ASTM Test Sieves 13

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Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

1.0 UNPACKING & SET-UP: Tighten the Clamp Bar End Knobs (#17) enough to
hold the cover in a poised position.

NOTE: DO NOT plug in or otherwise connect the

SS-15 to a power source until this initial inspection WARNING!
is complete. Damage claims MUST be filed with
shipping carrier within ten days. The SS-15 is ready Use caution to avoid pinching your fingers while
to operate as shipped. tightening these knobs.

1. The SS-15 weighs approximately 52lb (24kg). Use 3. Insert a stack of testing sieves and pan with sample
appropriate equipment and manpower to uncrate the on top sieve. Lower the Sieve Cover (#15) onto the
sieve shaker. Wear safety glasses and work gloves. stack, and tighten the Clamp Bar End Knobs (#17) on
each side first. Then tighten the Clamp Bar Tension
2. Open the top of the carton and lift the SS-15 out by Knob (#18) after tightening the end knobs.
the stabilizer bar. If at all possible, DO NOT cut away
the carton since you will need it if the machine must 4. The Gilson SS-15 comes with a spring sound timer
be returned. If you do not have equipment for lifting that serves as the on/off switch as well as test timer.
the machine, you will have to cut away the carton. Set Explore the operation of the timer. The timer ring
the unit on a solid, substantial surface, and inspect it stop may be rotated and set to repeat any time by
for shipping damage and for loose or missing parts tightening the slotted knurled clamp screw. The stop
or documents. peg should be set greater than five minutes.

3. Inspect the outside of the SS-15 for shipping damages. Connect the SS-15 to a properly-wired, grounded
Then, referring to the Parts Diagram, check to see if power source after any initial testing of the timer.
the Sieve Retainer Frame (#13) is bent. Loosen and
tighten the three Clamp Knobs (#17 & #18). Check to
see that the Sieve Retainer Frame Nuts (#14) at the NOTE: ALWAYS disconnect the unit after use.
ends of the rods and the Motor Mounting Bolts (four
located on top of case) are tight.
5. Turn the timer clockwise to four minutes, then turn it
Check that the unit is wired to match your power sup- slowly counterclockwise. At ten minutes an audible
ply. The standard SS-15 comes with a 1/4hp, 115V, click indicates the timer and unit are OFF. When the
60-cycle motor. timer switch is turned counterclockwise to the "Hold"
position, the unit runs continuously.
4. On the bottom of the unit are four small rubber feet.
These may be removed to use the base holes for 6. The built-in spring timer supplied with the SS-15 is
permanent mounting if desired. Use appropriately sufficiently accurate for most applications, normally up
sized mounting screws and bolts 5/16in if you plan to to ±20 seconds. If more accurate timing is required,
secure the unit to the table. Turn the machine upright separate electric timers of several types are available
on the table. as optional accessories from Gilson. An alternative
SS-15D model is available equipped with a Gilson
Digital Timer.

2.0 OPERATING INSTRUCTIONS: 7. The Gilson SS-15D model unit is equipped with an
easy-to-operate Gilson interval count-down timer. The
Please read understand all safety and operating instruc- timer has a large 0.6in LED display and will operate
tions for the Gilson Economy 8in Sieve Shaker before in four different modes. It is powered by line voltage
putting it into service. and will work on power supplies from 100-265 VAC,
50/60Hz, with up to 20 amps Inductive or Resistive
1. Make sure that the SS-15 is unplugged from the power current.
supply before beginning operation.

2. Loosen the Clamp Bar Tension Knob (#18) and the

Clamp Bar End Knobs (#17), and raise the Sieve Stack
Cover to the top of the Sieve Retainer Frame (#13).

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Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

3.1 Cleaning the Unit:

NOTE: The main device that the timer controls
may be restricted to operating on a more limited
1. Clean the unit AT LEAST once a year. It is designed to
electrical supply range. Check the device carefully
give consistent results. Dirt can affect test results. An
to insure compatibility with your electrical supply.
appropriate cleaning schedule for your unit depends
on the frequency of use, exposure to dirt, and sample
makeup.
Current timer mode is indicated by the four red LED’s
on the timer face:
2. Clean beneath the unit at least annually. Take care
not to introduce cleaning agents into the timer or the
A=MMSS (99min:59sec x 1 second)
motor. If a thorough cleaning is required, the motor
B=HHMM (99hr:59min x 1 minute)
and timer must first be removed. See below.
C-SSSS (9999sec x 1 second)
D=MMMM (9999min x 1 minute)
3. To perform maintenance or repairs, or to inspect the
internal parts of the SS-15, place the unit on either of
(H is for hours, M for minutes, and S for seconds.)
its sides or on its back as appropriate. Make sure to
To adjust the timer mode, press and hold both <UP>
prop up the machine as necessary to avoid damage
and <DOWN> keys at the same time until the display
to the power cord or platform.
shows the mode. Once the mode letters are displayed,
press <UP> or <DOWN> to change modes. Press
3.2 Drive Belt:
<START/STOP> to accept new mode.
1. Periodically check drive belt for wear, tension, and align-
To set the run time, press either <UP> or <DOWN>.
ment. A worn, loose, tight, or misaligned drive belt can
The first digit on the right hand will flash in half-second
affect the operation of your SS-15. The belt should be snug:
intervals. Press either arrow key to adjust to the de-
neither too tight nor too loose. A snug fit assures longer
sired value. To enter the displayed digit and move
life, less bearing wear, and quieter operation than a belt
to the next, press <START/STOP>. Once the last
which is too tight. A loose belt may cause the unit to run
digit on the left is entered, the timer is ready to start.
too slowly or to slip. The drive belt should deflect 1/64 of
the value of the space of the pulleys. The pulleys should
Press <START/STOP> to initiate the current run
be aligned to avoid excessive edge wear on the belt.
program. Once running, pressing <START/STOP>
again will pause the timer with the current amount of
2. To adjust or replace the belt, lay the unit on its left
time remaining on screen. When allowed to time-
side, making sure not to pinch the electrical cord.
out, the timer beeps and displays DONE. Press any
Loosen the four Motor Mounting Bolts (#26) on the
key to continue. Setting and Mode values are saved
top of the outer case (see Parts Diagram). Move the
automatically.
motor up or down to adjust tension in the drive belt.
Use a straight edge to maintain pulley alignment. If
you must adjust the belt past the end of the slots to
3.0 MAINTENANCE: get proper snugness, replace the belt. NEVER force
or pry the belt over the pulley flanges.
Before performing maintenance or repairs on the sieve
shaker, ALWAYS read and understand the safety, operat- 3.3 Motor:
ing, and maintenance instructions.
1. Apply a few drops of oil to the motor and bearings at
ALWAYS disconnect the SS-15 from its power before least once a year.
performing maintenance or repair. The SS-15's motor has
internal thermal protection which may cause it to restart 2. To remove the motor, lay the unit on back or left side so
automatically. that it will fall away from other internal parts when the
mounting bolts are removed. Remove the four motor
Send back your unit's registration card. This card regis- mounting bolts on top of the outer case. As the motor
ters the serial number in Gilson's master file and assures loosens remove the drive belt. Remove the motor ter-
supply of proper parts when service is required. Provide minal cover plate which is held with two screws located
this serial number whenever ordering replacement parts. where the power and timer cords enter the motor.

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Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

3. Disconnect the power and timer wire terminals, noting (#2), Main Shaft (#1), and Eccentric (#9). Any signs of
where each is attached, loosen the cord and remove wear or egg-shaping warrant the part's replacement.
the wires from the motor terminal box. The motor is Order replacement parts from Gilson by name and
now completely free. Remove motor belt pulley by key number.
loosening the set screw.
3.6 Reassembly of the Unit:
4. Have the motor cleaned or overhauled by a trained
electric motor repair person. Replacement motors are To reassemble the unit, follow the above described se-
available from Gilson. To install the motor, reverse the quence in reverse, taking caution to reestablish drive belt
steps of the procedure described previously. Make alignment and spacing of components. Use the SS-15
sure that both pulleys are aligned and that the belt is Parts Diagram as a guide.
properly tensioned.

3.4a Spring Wound Timer: 4.0 TROUBLESHOOTING:

To remove the Timer, loosen both Timer terminals, and Unit Fails to Operate:
pull off the leads. Remove both screws from the retain- First establish that power is being delivered to it. The wall
ing bracket on the back of the timer. This should free the outlet should be tested with a meter or other device for
timer unit. evaluating current.

3.4b Digital Timer: Check the Timer to make sure it is functioning properly. If
the Timer is not functioning, order a new one from Gilson.
To remove the digital timer, disconnect power from unit by
unplugging machine from power source. Then disconnect Next, loosen the Motor Mounting Bolts and remove the
wiring harness connection from motor and power supply Drive Belt.
by pulling connection apart, being careful not to discon-
nect sections (or wires) so they remain properly oriented If the motor still will not run, continue with the Motor re-
to easily reconnect. moval procedure described in the Maintenance Section.
To gain access to the motor terminal cover plate, remove
Loosen and remove nuts from back of plastic box, this the plate and test for power cord continuity. If the power
will now allow you to remove the timer out the front of the cord is not at fault, then repair or replace the motor.
machine and the box to inside of machine.
Drive Shaft Binding is Evident:
Remove and inspect the bearings, bushings, and other
3.5 Main Shaft: components attached to the Main Shaft. To disassemble
the drive shaft components, see the procedure outlined
1. To remove the Main Shaft (#1) and attached subunits, in the Maintenance Section. Note belt alignment and
lay the unit on either side (but NOT on its back) component spacing for reassembly.
and loosen the drive belt following the instructions
in Section 3.2., and remove it. Loosen the four set Unit Operates but is Excessively Noisy:
screws touching the Main Shaft: Main Shaft Pulley Excessive noise may come from loose sieve retainer
(#11), Counterweight (#10), Eccentric (#9), and Main clamps, bolts, nuts, egg-shaping of bushings, or worn
Shaft Collar (#3). Remove the Yoke Bushing Shoulder bearings. Always check for loose nuts, bolts and clamps
Bolts (#8). This frees the Main Shaft to be pushed to before disassembling the SS-15's components. Replace
the right toward the front of the unit creating enough the frame guide bushing (#21) when the bushing makes
space to remove the Main Shaft Pulley (#11), Coun- a flopping sound.
terweight (#10), Eccentric (#9), Eccentric Bearing (#5),
Yoke Bearing Collar (#6), and Main Shaft Collar (#4) Clamp Bar Tension Knob Ineffective:
respectively. Loosen it completely, lower the sieve cover, and retighten
the Clamp Bar End Knobs before tightening the Tension
2. The Main Shaft can be moved to the left (to the rear Knob.
of the outer case) if only a few components on the
right side are being serviced. Notice the spacing as
each piece is removed. Inspect each disassembled
piece for wear, especially the Main Shaft Bushing

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Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

5.0 SIEVING ACCURACY:

Accurate sieving is achieved by applying a proper com-

bination of equipment, including standard quality sieves,
and sieving technique.

The following suggestions will help improve test results:

1. Determine suitable test times for each type of sample.

One method is to shake each sieve singly with a pan
(by machine or by hand) for an additional minute fol-
lowing a test. If a significant percentage, say 1—2%,
of the retained materials passes with the added sieving
time, test time should be increased.

2. Use only sample types within the design range of the

test apparatus. The SS-15 has an approximate design
range of No.4—No.50 sieve sizes, but acceptable
results may be possible over a wider range depend-
ing on sample specific gravity, particle shape, and
fraction of sample that is outside the normal design
range.

3. DO NOT overload sieves. Maximum loading at

completion of sieving is about 132cc on individual 8in
(203mm) diameter sieves in the design range. If the
loading is greater, either reduce the starting sample
size or insert an extra intermediate sieve to reduce
loading on the critical sieve.

4. Check sieves periodically to ensure that the wire cloth

is in accordance with ASTM E11 standards. A Gilson's
TSA-175 Pocket Magnifier is useful for spot checking
for flaws and for mesh size identification. Calibration
beads are also available for precision work where
effective sieve opening ratings are determined for
each sieve rather than using the nominal size ratings.

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Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

6.0 PARTS DIAGRAM:

6.1 SS-15

SS-15 Parts Diagram

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Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

7.0 PARTS LIST:

7.1 SS-15 Parts List

Item No. Description No. Req’d

MAIN SHAFT PARTS
1 Main Shaft 1
2 Main Shaft Bushing 2
3 Main Shaft Collar 1
4 Eccentric Locking Collar 1
5 Eccentric Bearing 1
6 Yoke Bearing Collar with Snap Ring 1
7 Yoke Bushing 2
8 Yoke Bushing Shoulder Bolt 2
9 Eccentric 1
10 Counterweight 1
11 Main Shaft Pulley 1
SIEVE CLAMPING & HOLDING PARTS
12 Sieve Platform with Yoke 1
13 Sieve Retainer Frame 1
14 Sieve Retainer Frame Nut 4
15 Sieve Cover 1
16 Clamp Bar Assembly 1
17 Clamp Bar End Knob 2
18 Clamp Bar Tension Knob 1
21 Sieve Retainer Frame Guide Bushing 1
ELECTRIC & DRIVING PARTS
23 Motor, 1/4hp, 115V, 60-cycle 1
26 Motor Mounting Bolts with Clip Nut 4
24 Motor Pulley 1
25 Drive Belt 1
28 Spring Wound Timer 1
— Timer Cord 1
— Electrical Harness, 8ft 1
28D Digital Timer 1
— Cord Grip 1
— Scotch Locks 2
27 Rubber Locks 2

22 Outer Case with Stabilizer Bar 1

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Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

8.0 ADDITIONAL INFORMATION:

8.1 Gilson Test Sieves every frame diameter. Common coarse sizes are also
listed. Normally, every second or fourth size is used,
Gilson stocks the widest range and largest quantity of although precision testing may require consecutive sizes.
sieves of any major supplier. Immediate shipment is Additional sieves are often inserted into the sequence to
available for all popular sizes. Custom sieves with special avoid overloading of individual sieves or to better define
diameters and stacking heights are also available. a particular size range.

ASTM Sieves meet the requirements of ASTM E11. ISO ISO Sieve Cloth can be mounted in 8in (203mm) frames
Sieves meet ISO 565 specifications with tolerances to when special-ordered. These items are nonreturnable
ISO 3310-1. All are serial numbered and supplied with a when supplied as ordered.
certificate of manufacturing conformance.
Frame Diameter
ASTM and ISO Test Sieves are categorized in three Frames should accommodate the entire sample volume
different classes. with enough surface area to avoid overloading individual
sieves. The diameter selected must also fit the sieve
• Compliance Test Sieves are supplied with a basic shaker being used. Gilson stocks most common sizes.
certificate of manufacturing conformance. All Gilson Test Inquire for custom sizes.
Sieves meet Compliance grade requirements.
Frame Height
• Inspection Test Sieves have a specified number of Sieve frames are designated as Full-Height or Half-
openings measured and reported for each sieve. Height. Intermediate-Height sieves are also available
for 3in and 12in diameters. Half or Intermediate-Height
• Calibration Test Sieves have two to three times as frames allow a greater number of sieves to be used when
many openings measured on each sieve, and are stack height is limited. Full-Height frames allow free
supplied with more detailed documentation. movement of larger particles during agitation for more
efficient separation. ISO Test Sieves are fitted with black
Mesh Opening rubber O-Rings.
Opening Sizes are listed using standard millimeter (mm)
or micrometer (μm) descriptions, as well as traditional Frame and Cloth Material
inch and number designations where appropriate. Gilson • Stainless Steel Frame with Stainless Steel Cloth assures
offers all mesh sizes, but not all sizes are available in a sieve with the longest possible service life. This is the

SIEVE FRAME HEIGHTS & PARTICLE TOPSIZE LIMITS

Sieve Frame Height Particle Topsize
Diameter Frame Designation Stacked Overall Recommended Limit

3in (75mm) FH 1-1/8 1-3/4 No.8 3/8in

IH 1 1-1/2 No.8 3/8in
HH 5/8 1-1/4 No.8 1/4in
6in (152mm) FH 1-7/8 2-5/8 No.4 1/2in
HH 1-1/8 1-7/8 No.4 3/8in
8in (203mm) FH 2-1/8 2-5/8 No.4 1/2in
HH 1-1/8 1-5/8 No.4 3/8in

200mm FH 2-1/8 2-5/8 No.4 1/2in
HH 1-1/8 1-5/8 No.4 3/8in

10in (254mm) FH 3-1/8 4 3/8in 3/4in
12in (305mm) FH 3-3/8 4-1/4 1/2in 1in
IH 2-1/8 3 1/2in 3/4in
HH 1-3/4 2-5/8 1/2in 1/2in

300mm FH 2-1/2 3 1/2in 3/4in
HH 1-1/2 2 1/2in 1/2in

18in (457mm) FH 4-1/4 5-1/2 1-1/2in 2in

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Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

best choice where contamination, sanitation or extreme Acceptance by Performance Testing. User-Prepared
wear is an issue. Reference Materials can also be utilized under E2427 in
the same manner as SRM’s. Because user materials are
• Brass Frame with Stainless Steel Cloth is a popular choice non-standard, they are not traceable and require much
that offers extended service and cost-effectiveness. more handling. In addition, the user must determine
acceptable tolerances for statistical analysis.
• Brass Frame with Brass Cloth is economical for light-
duty applications. Coarse-series sieves are not available Sieve Shakers
with brass cloth. The proper sieve shaker saves considerable time and
effort, and yields superior accuracy, consistency, and
Backing Cloth repeatability compared to manual shaking methods for
Back-up cloth prevents sagging or tearing of expensive particle sizing. Effective agitation lifts all particles off
fine stainless steel mesh. Unsatisfactory service life from the sieve cloth, reorients them, and allows them to be
a sieve would suggest replacement by a sieve built with repeatedly “tried” to different openings at different angles.
backing cloth. To order, add the code “BU” to the model Careful review of shaker specifications allows optimal
number of the sieve. These sieves are made-to-order, choices for different materials and applications. Greater
have longer delivery times and are non-returnable. sample volumes and large particle topsize may indicate
selection of Gilson Test-Master®, Testing Screen or Porta-
Pans and Covers Screen® models for efficient processing.
• Pans collect fines at the bottom of the sieve stack.
Extended-Rim pans are also available to insert into the 8.2 Test Sieve & Screen Tray Verification & Services
middle of a stack, allowing two samples to be tested at
once. There have been extensive revisions to the newest
version of ASTM standard E11, Specification for Wire
• Covers are not necessary with most Gilson sieve shakers, Cloth and Sieves for Testing Purposes. Gilson is leading
but may be needed if using a different shaker or shaking the way in educating our customers about the new
by hand. The Cover-with-Ring has a wire finger loop in the specification and making these new products available.
center to facilitate removal. The new specification affects all test sieves, screen trays,
and wire cloth, and changes the way the mesh openings
Gilson Sieve Verification Services are evaluated by looking at the statistical distribution
Gilson Verification can be performed on any test sieve of aperture sizes, rather than just the average opening
or Gilson screen tray, used or new. These services are sizes. In addition to a more accurate and reliable system
ordered by specifying the appropriate model number given of evaluation, the new system also allows compatibility
in our listing for Test Sieve and Screen Tray Verification with ISO 565 and 3310-1 requirements. There are now
and Services. An optical comparator with NIST traceable three grades, or classes of ASTM or ISO test sieves
calibration measures opening sizes and wire diameters available; Compliance, Inspection and Calibration.
on each sieve, and a statistical analysis assures the
standard deviations are within ASTM or ISO requirements • Compliance Test Sieves are manufactured with wire
for Inspection or Calibration grades. Sieves, trays, or cloth that has been inspected and measured in roll
wire cloth units are not included in the purchase price of or sheet quantities prior to being cut and mounted
the verification services. Because wire cloth stretches, in the individual sieve frames. Opening sizes are
sags, or tears, and abrasive materials can reduce wire not measured in individual sieves. Each Compliance
diameters, a verification process should also be set sieve is supplied with a certificate of manufacturing
up to regularly verify that working sieves still meet the compliance, but no statistical documentation is given.
specifications. These measurements can be taken directly Compliance sieves are designed for applications where
using calipers or an optical comparator, by testing with a basic, reliable degree of accuracy and repeatability
Standard Reference Materials, or by returning to Gilson are sufficient.
for Re-Verification. To verify used sieves, contact a Gilson
customer service representative for shipping instructions. • Inspection Test Sieves have a specified number of
openings measured in each sieve after the cloth is
Standard Reference Materials (SRM’s) mounted in the frame. There is a 99% confidence level
Sieve Reference Materials are precision glass beads that the standard deviation of these openings is within
or powders for performance testing of sieves. They the maximum allowed by ASTM. Inspection Sieves
are traceable to the National Institute of Standards and are a good choice in applications where accuracy and
Technology (NIST), or European Community Bureau of repeatability are critical. Each Inspection Sieve consists
Reference (BCR). SRM’s fit easily into internal quality of a Compliance Sieve with added Inspection Sieve
programs following guidelines in ASTM E2427, Sieve Verification service.
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Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

• Calibration Test Sieves have about twice as many

openings measured as Inspection Sieves. The
higher number of openings measured on each sieve
increases the confidence level to 99.73% that the
standard deviation of these openings is within the
maximum allowed by ASTM. Calibration Sieves should
be used in applications where a very high degree of
accuracy is required. Each Calibration Sieve consists
of a compliance sieve with added Calibration Sieve
Verification service.

New Gilson Test Sieves are guaranteed to meet the GV-65 Calibration Verification shown
with Sieve
requirements of ASTM or ISO for Compliance, Inspection or
Calibration grades as ordered, but for continued assurance
of performance, procedures should be in place to regularly
check working sieves as they age. Wire cloth stretches,
sags, or even tears, and abrasive materials reduce wire
diameter, causing an increase in opening size and loss of
accuracy over time.

These same verification services are also available

for screen trays used in Gilson Testing Screens, Test-
Master®, Porta-Screen® and Gilso-Matic® machines.

Gilson Reverification Services can be performed

on used ASTM or ISO Test Sieves or Screen Trays.
An optical comparator with NIST traceable calibration GV-66 Calibration Verification shown with
measures opening and wire diameter sizes on each sieve. Screen Tray
Certification reports are produced for the appropriate
grade. These services are available for all ASTM and ISO
sieve sizes and types, and are ordered by specifying model
numbers for Inspection Sieve Verification, or Calibration
Sieve Verification. Sieves are not included in the purchase
price. When verifying used sieves, contact a Gilson
customer service representative for shipping instructions.

Master-Matched Sieves are ASTM 8in diameter stainless

woven-wire sieves from No.8 (2.36mm) to No.325 (45µm)
that have been measured and shown to closely match a
set of master sieves maintained by Gilson in a reference
laboratory. Master-Matched Sieves from Gilson are always
Certificate of E 11
matched to the same master set, assuring that one sieve
Compliance for all Sieves
is very close to another. Master-Matched Sieves are also
certified to meet ASTM E11, so additional verification is
not normally necessary. Master-Matching is done using TEST SIEVE & SCREEN TRAY VERIFICATION & SERVICES
special standard reference materials, sized for each sieve. Description Model
Each sieve is performance tested to insure it yields ±2% Inspection Test Sieve Verification, ASTM E 11 GV-60
by weight of the value of the master sieve. Calibration Test Sieve Verification, ASTM E 11 GV-65
Inspection Test Sieve Verification, ISO 565 and 3310-1 GV-62
Calibration Test Sieve Verification, ISO 565 and 3310-1 GV-63
Ordering Inspection Screen Tray Verification, ASTM E 11 GV-61
All Gilson test sieves meet ASTM or ISO requirements for Calibration Screen Tray Verification, ASTM E 11 GV-66
Compliance Test Sieves. Ordering additional verification Inspection Screen Tray Verification, ISO 565 and 3310-1 GV-64
services for each individual sieve upgrades them to meet Calibration Screen Tray Verification, ISO 565 and 3310-1 GV-67
Inspection or Calibration specifications. Master-Matched Sieves MM-70

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Gilson Company, Inc. Gilson Economy 8in Sieve Shaker: SS-15

8.3 8in Diameter ASTM Test Sieves

8IN DIAMETER ASTM TEST SIEVES

Stainless Cloth Stainless Cloth Brass Cloth
ASTM E11 Stainless Frame Brass Frame Brass Frame
Alt. Std. Full Ht. Half Ht. Full Ht. Half Ht. Full Ht. Half Ht.
4in 100.0mm V8SF 4" — V8CF 4" V8CH 4" — —
3-1/2in 90.0mm V8SF 3-1/2" — V8CF 3-1/2" V8CH 3-1/2" — —
3in 75.0mm V8SF 3" — V8CF 3" V8CH 3" — —
2-1/2in 63.0mm V8SF 2-1/2" — V8CF 2-1/2" V8CH 2-1/2" — —
2.12in 53.0mm V8SF 2.12" — V8CF 2.12" V8CH 2.12" — — Combination Sieve
C 2in 50.0mm V8SF 2" — V8CF 2" V8CH 2" — —
O 1-3/4in 45.0mm V8SF 1-3/4" — V8CF 1-3/4" V8CH 1-3/4" — —
A 1-1/2in 37.5mm V8SF 1-1/2" — V8CF 1-1/2" V8CH 1-1/2" — —
R 1-1/4in 31.5mm V8SF 1-1/4" — V8CF 1-1/4" V8CH 1-1/4" — —
S 1.06in 26.5mm V8SF 1.06" — V8CF 1.06" V8CH 1.06" — —
E 1in 25.0mm V8SF 1" V8SH 1" V8CF 1" V8CH 1" — —
7/8in 22.4mm V8SF 7/8" V8SH 7/8" V8CF 7/8" V8CH 7/8" — —
S 3/4in 19.0mm V8SF 3/4" V8SH 3/4" V8CF 3/4" V8CH 3/4" — —
E 5/8in 16.0mm V8SF 5/8" V8SH 5/8" V8CF 5/8" V8CH 5/8" — —
R 0.530in 13.2mm V8SF .530" V8SH .530" V8CF .530" V8CH .530" — —
I 1/2in 12.5mm V8SF 1/2" V8SH 1/2" V8CF 1/2" V8CH 1/2" — —
E 7/16in 11.2mm V8SF 7/16" V8SH 7/16" V8CF 7/16" V8CH 7/16" — —
S 3/8in 9.5mm V8SF 3/8" V8SH 3/8" V8CF 3/8" V8CH 3/8" — —
5/16in 8.0mm V8SF 5/16" V8SH 5/16" V8CF 5/16" V8CH 5/16" — —
0.265in 6.7mm V8SF .265" V8SH .265" V8CF .265" V8CH .265" — —
1/4in 6.3mm V8SF 1/4" V8SH 1/4" V8CF 1/4" V8CH 1/4" — —
No.3-1/2 5.6mm V8SF #3-1/2 V8SH #3-1/2 V8CF #3-1/2 V8CH #3-1/2 — —
No.4 4.75mm V8SF #4 V8SH #4 V8CF #4 V8CH #4 — —

No.5 4.0mm V8SF #5 V8SH #5 V8CF #5 V8CH #5 — —

No.6 3.35mm V8SF #6 V8SH #6 V8CF #6 V8CH #6 — —
1/8in¹ 3.18mm V8SF 1/8" V8SH 1/8" V8CF 1/8" V8CH 1/8" — — 8in Stainless Steel
No.7 2.8mm V8SF #7 V8SH #7 V8CF #7 V8CH #7 — — Test Sieves
No.8 2.36mm V8SF #8 V8SH #8 V8CF #8 V8CH #8 V8BF #8 V8BH #8
No.10 2.0mm V8SF #10 V8SH #10 V8CF #10 V8CH #10 V8BF #10 V8BH #10
No.12 1.7mm V8SF #12 V8SH #12 V8CF #12 V8CH #12 V8BF #12 V8BH #12
No.14 1.4mm V8SF #14 V8SH #14 V8CF #14 V8CH #14 V8BF #14 V8BH #14
No.16 1.18mm V8SF #16 V8SH #16 V8CF #16 V8CH #16 V8BF #16 V8BH #16
No.18 1.0mm V8SF #18 V8SH #18 V8CF #18 V8CH #18 V8BF #18 V8BH #18
No.20 850µm V8SF #20 V8SH #20 V8CF #20 V8CH #20 V8BF #20 V8BH #20
F No.25 710µm V8SF #25 V8SH #25 V8CF #25 V8CH #25 V8BF #25 V8BH #25
I No.30 600µm V8SF #30 V8SH #30 V8CF #30 V8CH #30 V8BF #30 V8BH #30
N No.35 500µm V8SF #35 V8SH #35 V8CF #35 V8CH #35 V8BF #35 V8BH #35
E No.40 425µm V8SF #40 V8SH #40 V8CF #40 V8CH #40 V8BF #40 V8BH #40
No.45 355µm V8SF #45 V8SH #45 V8CF #45 V8CH #45 V8BF #45 V8BH #45
S No.50 300µm V8SF #50 V8SH #50 V8CF #50 V8CH #50 V8BF #50 V8BH #50
E No.60 250µm V8SF #60 V8SH #60 V8CF #60 V8CH #60 V8BF #60 V8BH #60
R No.70 212µm V8SF #70 V8SH #70 V8CF #70 V8CH #70 V8BF #70 V8BH #70
I No.80 180µm V8SF #80 V8SH #80 V8CF #80 V8CH #80 V8BF #80 V8BH #80
E No.100 150µm V8SF #100 V8SH #100 V8CF #100 V8CH #100 V8BF #100 V8BH #100
S No.120 125µm V8SF #120 V8SH #120 V8CF #120 V8CH #120 V8BF #120 V8BH #120
No.140 106µm V8SF #140 V8SH #140 V8CF #140 V8CH #140 V8BF #140 V8BH #140
No.170 90µm V8SF #170 V8SH #170 V8CF #170 V8CH #170 V8BF #170 V8BH #170
No.200 75µm V8SF #200 V8SH #200 V8CF #200 V8CH #200 V8BF #200 V8BH #200
No.230 63µm V8SF #230 V8SH #230 V8CF #230 V8CH #230 V8BF #230 V8BH #230
No.270 53µm V8SF #270 V8SH #270 V8CF #270 V8CH #270 V8BF #270 V8BH #270
No.325 45µm V8SF #325 V8SH #325 V8CF #325 V8CH #325 V8BF #325 V8BH #325
No.400 38µm V8SF #400 V8SH #400 V8CF #400 V8CH #400 — —
No.450 32µm V8SF #450 V8SH #450 V8CF #450 V8CH #450 — —
No.500 25µm V8SF #500 V8SH #500 V8CF #500 V8CH #500 — — SS-8R Gilson Tapping Sieve
Shaker shown with Sieves
No.635 20µm V8SF #635 V8SH #635 V8CF #635 V8CH #635 — —
Regular Pan V8SFXPN V8SHXPN V8BFXPN V8BHXPN V8BFXPN V8BHXPN
Extended Rim Pan V8SFXPE V8SHXPE V8BFXPE V8BHXPE V8BFXPE V8BHXPE
Regular Cover V8SFXCV V8BFXCV V8BFXCV
Cover with Ring V8SFXCR V8BFXCR V8BFXCR
¹ Not a standard ASTM E11 size.
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