Larger Capacity Motorized Sieve Shaker, Sieve Diameter 8 in, 10 in, 12 in, Fits Number of Full Size Sieves 11, Fits Number of Intermediate Size Sieves 7, Fits Number of Half Size Sieves 19, ASTM ASTM C136, Timer Range 30 min, Timer Type Mechanical, Mounting Required Yes, 1/4 hp HP, Power Required 115V, Manufacturers Warranty Length 6 mo