The Rotary Lab Sieve Sifter borrows its design from the Mary Ann Sieve Sifter. Like the Mary Ann it is a totally enclosed unit, which can be used with 8" or 12" sieves. Sieve stack capacity is six full-height (3") 12" sieves with a bottom pan. Unit timing is controlled by a digital countdown controller with a large red LED display. Operation can be set from 1 to 99 minutes. Settings can be saved between tests to speed operation and provide repeatability of tests. Dimensions: 19 x 24 x 58" (483 x 610 x 1473mm). Ship wt. 215 lbs. (98kg).