RO-TAP models RX-29 and RX-20 must be mounted on this test stand, or a concrete foundation or heavy bench capable of supporting 200 lbs. Moderate tension of the mounting bolts is all that is required.

Features a unique two dimensional operation: a horizontal, circular motion and a vertical, tapping motion. This special action allows particles to stratify and “seek” critical openings in the test media.

SPECIFICATIONS:
- Oscillations per Minute: 278 ± 10
- Oscillations Displacement: 1-1/8 x 7/16 inch
- Taps per Minute: 150 ± 10
- Timer: 99-minute digital timer/clock, tolerance 0.1 seconds
- Dimensions: 28 in. wide x 21 in. deep x 25 in. high (71 cm x 54 cm x 64 cm)
- Weight: 180 lbs. (82 kg)
- Testing Applications: 2 inches through US #635 mesh (20 µm)
- Capacity: 6 full-height sieves with full-height pan, or 13 half-height sieves with half-height pan

Sieves, pan, and lid are sold separately.