Crusher is a kind of crushing equipment with low speed and large torque. It adopts the principle of shear crushing, which has the advantages of strong crushing ability, large torque, low noise and strong adaptability of raw materials. Shredding machine adopts hexagonal shaft as the main shaft, the tool adopts a blade a sleeve installation, two rotors bite each other, in operation, the blade and blade closely cooperate, the material pieces are cut and broken, discharged from the discharge port. with large torsion machine of decelerate of hard tooth flank, loss of the torque is small, can output a bigger bite at the same time, can be broken metal, engineering plastics, tires, cloth and so on all kinds of raw materials, because of the low speed, while for the hard brittle material crushing efficiency is low, and the broken shearing type way for tires, rags, silica gel, soft plastic, plastic film and other flexible material crushing effect is better, Capacity is also relatively higher.