Hammer crusher for the main working parts with a hammer (also known as the hammerhead) rotor. Rotor from the spindle, disk, composed of pin and hammer. Motor driven cavity broken rotor in high-speed rotation. Materials from the upper mouth to feed into the machines, the high-speed movement of the hammer blow, shock, shear, abrasive and smash. Rotor in the bottom of a sieve plate, crushed material is less than the particle size sieve through the sieve plate drained more than sieve size of coarse-grained level resistance remain in the sieve plate to continue to be a hammer blow and grinding, finally adopted from the sieve plate from the aircraft.