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Gilson Testing Screens, Hydraulic Clamping

Gilson Testing Screens, Hydraulic Clamping

Product Options

  Part Number & Name Price QTY
Hydraulic-Clamping, 120V 60HzH-4283A
Hydraulic-Clamping, 120V 60Hz
Hydraulic-Clamping, 220V 50HzH-4283A.5F
Hydraulic-Clamping, 220V 50Hz
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Gilson Testing Screens, Hydraulic Clamping

Supports the following standards: ASTM C535, ASTM C136, ISO 565

Gilson testing screens are ideal for particle size determinations on large samples of aggregate, slag, ores, and many other coarse materials. Batch sizes up to one cubic foot (0.028m³) or more can be processed into six fractions in as little as three to five minutes, depending on material type. Vibration and amplitude characteristics are fixed at optimum settings for mineral aggregates in the 4" (101mm) to No.4 (4.75mm) size range, but options and accessories are available to optimize machine performance when testing finer samples or special materials. The standard testing screen can be used to process material all the way down to No.200 (75µm) if less efficient separations are acceptable.

These testing screens are available in two variations of clamping mechanism: a manually-operated, screw-type clamping handle, which is more economical, but slightly more labor-intensive for continuous use; and, a quick-acting hydraulic pump system used to clamp the screen trays in place. Trays are quickly secured and released using the same single handle. This more efficient model is recommended for labs with a steady workload of particle size testing.

Both models use an enclosed drive mechanism for added safety. The powerful 1/2hp capacitor-type motor is operated through a starting switch with built-in overload protection. Gilson testing screens are designed to be mounted to a solid, rigid floor system. Securing with anchor bolts to a concrete floor is recommended. Dimensions for anchor bolt placement are available upon request. Overall Dimensions: 23" x 31" x 43" (584 x 787 x 1,092mm), W x D x H.

Gilson testing screens are sold without screen trays or dust pans, which need to be purchased separately for operation. Specify sizes when ordering. In both models, the dust pan may optionally be placed on the bottom shelf of the unit, freeing up an additional slot for a screen tray.

Screen Trays for the Testing Screens feature a generous 14.75" x 22.75" (375 x 578mm), 2.33ft³ (0.22m³) clear screen area. Optional dustpan configurations can be ordered for increased capacity, reduced dust output, or dispensing of fines directly into outside bag or container. Other accessories to facilitate sample handling, dust and noise control and separation performance are listed separately.

These models feature 6-tray slots and a bottom shelf, which allows for up to 6 trays and a dust pan to be used. Order screen trays and dust pans separately.


  Part Number & Name Price QTY
Standard Dustpan Tray for Testing Screens
Door Enclosure Testing Screens H-4286
Door Enclosure Testing Screens
Clean-n-Weigh Accessory H-4307
Clean-n-Weigh Accessory
Storage Tray Rack H-4285
Storage Tray Rack
3" (75mm) Deep Dustpan for Gilson Screen Shakers H-4283P3
3" (75mm) Deep Dustpan for Gilson Screen Shakers
4" Deep Dustpan for Gilson Screen Shakers H-4283P4
4" Deep Dustpan for Gilson Screen Shakers
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ISO 565
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