Robinson Saw Tooth Crusher. Model: 10. S/N: 1590. Unit is equipped with twin rotors that have (27) 9 in. dia. blades at 1 inch intervals. Stainless steel product contact parts. US Electrical Enclosed Motor, 1 hp, 1740 rpm, 915 rpm (final), 230/460 V, 27/13.5 amps, 60 Hz, 3 phase. Inlets: 14 in. W x 14 in. L infeed. Outlets: 17-1/2 in. x 12-1/2 in. discharge. Overall dimensions: 67 in. L x 63 in. W x 95 in. H.