Gilson Testing Screens are ideal for particle size determinations on large samples of aggregate, slag, ores, and other coarse materials. Batch sizes up to one cubic foot (28.3L) or more can be processed into six fractions in as little as six to ten minutes, depending on the material type.
Vibration and amplitude characteristics are fixed at optimum for mineral aggregates in the 4in (101mm) to No. 4 (4.75mm) size range, but options and accessories are available for testing finer samples or special materials. Testing Screen models have the same performance characteristics but differ in the clamping mechanism, safeguarding devices, number of tray slots, and operational convenience features.
The drive mechanism is completely enclosed for added safety, and the powerful 1/2hp capacitor-type motor is operated with a starting switch with built-in overload protection. Independently removable Screen Trays and Dustpans are purchased separately and shared by both Testing Screen and Test-Master® models. The Trays have replaceable Screen Cloth and are available in a wide range of opening sizes with ASTM E11 and ISO 565 specification cloth or punched steel plate. Gilson Testing Screens are designed to be mounted to a solid, rigid floor system. Securing with anchor bolts to a concrete floor is recommended.
TS-1 Gilson Testing Screens use a quick-acting hydraulic pump system to clamp the screen trays in place. Trays are quickly released using the same handle. A total of six tray slots hold five Screen Trays plus a dustpan. This efficient model is recommended for labs with a steady workload of particle size testing.
TS-3 Gilson Testing Screens feature an additional tray slot for samples requiring additional fractions. The hydraulic clamping system is the same as TS-1, with a reinforced top frame for the increased screen tray loads. Seven tray slots hold six Screen Trays plus a dustpan.
TS-4 Gilson Silent Testing Screen is our newest model and combines all the features of the TS-3 with the addition of a sound-damping structure and an integrated digital LED timer. The door is fitted with an adjustable, heavy-duty, over-center lever latch that pulls the door tightly against the frame. The lid incorporates strong ferrite magnets that secure it in the open position to aid in the loading process and in the closed position to ensure seal integrity while in operation. Wear-resistant seals on the door and lid further prevent airborne dust and fine particles from entering the lab environment during the testing procedure. The door, lid, and interior surfaces of the TS-4 are lined with sound-damping material that significantly reduces operational noise.
- Rapid particle size determinations for materials from 4in (101mm) to No. 4 (4.75mm)
- The enclosed drive mechanism promotes safety during the operation
- Processes large samples up to 1ft³ (28.3L)
- Gilson Testing Screen (115V, 60Hz or 230V, 50Hz)
- Screen Trays with ASTM or ISO Wire Cloth or Punched Plate openings are available in a range of opening sizes and specifications
- Additional Dustpans include a standard, 4in deep, 3in deep, or inclined chute pan for fines collection and handling during the separation of aggregates and other materials.
- Door Enclosures are lightweight panels minimizing dust and noise and are easily removable.
- TSA-156 Screen Tray Storage Rack provides storage of up to seven screen trays and fits on top or below most benchtops
- TSA-167 Clean-N-Weigh Accessory offers a fast and efficient collection of size fractions from Testing Screen or Porta-Screen trays and speedy clean-up
- TSA-180 Sound Enclosure is a sturdy enclosure cabinet that reduces noise during operations of testing screens; it can be used with other laboratory equipment
- Hydraulic Clamping Conversion Kit converts threaded manual clamping of TS-2 to the faster hydraulic system of TS-1, reducing the time of test cycles. The kit model is based on the Testing Screen serial number. For serial numbers 13825 or lower select TSA-155. For serial numbers 13826 or higher select TSA-159.
- TSA-169R Digital Lab Timer for controlling up to 1hp single-phase motors or 20amp loads. Operates in four different timing modes
- TSA-154R Speed Variation Accessories allow precise control of vibration speed for reliable separation of materials
- TSA-200 Low-Amplitude Drive Shaft is factory installed and used in conjunction with the Speed Variation Accessory for fragile or sensitive materials