Ro-Tap® RX-812 Coarse Sieve Shaker

Designed to be used in coarse testing applications, the affordable RX-812 Coarse Sieve Shaker has the unique capability of using both 8″ diameter and 12″ diameter test sieves, simply by using the quick-change adapters provided.

The RX-812 has a quiet operation and utilizes an effective action that gives consistent, accurate results.


  • Designed for use with 8″ and 12″ diameter Test Sieves.
  • For analysis of particles US #100 (150um) and larger*.
  • Oscillating movement only.
  • Supplied with adaptor for 8″ and 12″ Test Sieves.
  • Oscillations per Minute: 280 (60Hz); 231 (50Hz).
  • Oscillation Displacement: 1-1/8″ x 7/16″
  • Dimensions: 23″ wide x 27″ deep x 26″ high
  • 8″ Sieve Capacity: 6 Full Height w/ FH pan, 13 Half Height w/ HH pan
  • 12″ Sieve Capacity: 4 Full Height w/ FH pan, 6 Half Height w/ HH pan

*Not recommended for analysis with particles 150 micron (100 mesh and finer) and smaller.


Other available motors:
 (WS-RX-812-1), 50Hz/110V (WS-RX-812-2) & 50Hz/220 V (WS-RX-812-3)

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