The Gilson Testing Screen and Gilson Test-Master® 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 for mineral aggregates in the 4in (101mm) to No.4 (4.75mm) size range, The standard Testing Screen can be used to process material all the way down to No.200 (75µm) .
Both Testing Screen models are similar in design and have exactly the same performance specifications. The only difference is in the clamping mechanism used to secure the screen trays during operation. The drive mechanism is completely enclosed for added safety. The powerful 1/2hp capacitor-type motor is operated through a starting switch with built in overload protection. Securing with anchor bolts to a concrete floor is recommended. Dimensions for anchor bolt placement are available upon request. Overall Dimensions: 23x31x43in (584x787x1,092mm), WxDxH.
■ Model SI-2530 Gilson Testing Screen:secures the screen trays with manually operated screwtype clamping handles.
■ Model SI-2531 Gilson Testing Screen:uses a quick-acting hydraulic pump system to clamp the screen trays in place.
Screen Trays and Dust Pans are purchased separately. Specify sizes when ordering. The Dustpan may optionally be placed on the bottom shelf of the unit, freeing up a slot for an additional screen tray. Screens are available in a wide range of opening sizes with ASTM E 11, ISO 565 specification cloth or punched steel plate. Screen cloth is replaceable, insuring long life and inexpensive maintenance of trays. Each tray features a generous 14.75x22.75in (375x578mm), 2.33ft2 (0.22m2) clear screen area.