Vibratory Solutions for Screening and Scalping Cleveland Screen with openings as large as 4 and as small as 250 microns 60# mesh with Cleveland Vibrator s coarse material vibratory screeners Sieve materials down to 20 microns 635 mesh with HK Technologies lab production sieves and sifters Size and separate particles down to 10 microns with Precision Eforming Sieves from HK Technologies