CSC Scientific's Octagon 2000 sieve shaker provides precise particle size analysis for laboratory or on-site use, all within safe and acceptable sound limits. Digital controls for time, vibration and amplitude allow users to duplicate test results from their current shakers, from 3 in. to 20 um. The unit is powered by an electromagnetic drive that has no rotating parts, eliminating maintenance and virtually all noise. The rapid vertical and side-to-side motion prevents apertures from blinding and offers accurate, repeatable results.