Model 5140CLK reduces paper to 1/32 x 7/16 in. shreds, meeting U.S. Department of Defense standards for destroying classified documents. It accepts 14 sheets at once, shredding 30 fpm or 300 lb/day. Photoelectric controls start shredding upon insertion of documents, and stop it upon completion. Cross-cut blades, driven by 2.2 hp motor, stay sharp with aid of built-in oiler. Safety interlocks prevent operation with door open or collector bag full. Machine measures 41 x 23 3/4 x 21 1/2 in., weighs 209 lb, and accepts sheets up to 16 in. wide.