Hammer crushermain working of hammer crusher is a rotor with a hammer (also known as a hammer head). The hammer crusher is also called a rock crusher or a stone breaker. The rotor is composed of a main shaft, a disc, a pin and a hammer. The motor drives the rotor at high speed in crushing chamber. The material is fed from the upper feeder, it is crushed by the impact, break, shear and grinding action of the high-speed moving hammer. it is equipped with a sieve plate in the lower part of the rotor, and the particles smaller than the sieve hole size are discharged through the sieve plate, and the coarse particles larger than the sieve hole size are blocked on the sieve plate and continue to be hit and ground by the hammer. ,And finally discharged out of the machine through the sieve plateCharacter