Crushers Suppliers ISO 9001:2000 certified. Design, fabrication and installation of pre-crushers for size reduction of pallets, cases and bulky wood waste materials. Available in 75 in. L x 123 in. W x 32 in. H overall dimensions, 63 in. infeed width, 63 in. infeed length, 30 in. rotor dia., 10 rpm rotor speed and 12 hp motor.