This machine utilizes the relative movement between the high-speed movable gear plate and the fixed gear plate, so that the crushed object can achieve the purpose of crushing the material through the comprehensive effects of tooth impact, shear and friction, and material collision with each other. This machine has simple structure, stable operation, low noise and good crushing effect. The crushed materials are directly discharged from the crushing chamber. The particle size can be achieved by selecting screens with different apertures.