PCH series ring hammer crusher is an impact rotor crusher with ring hammer. Ring hammer can not only rotate with the rotor, but also around the hammer pin rotation.When material enters the crusher, the crushing cavity by the high-speed rotation ofthe rotor ring hammer and broken, broken material at the same time to obtain kineticenergy from the ring hammer, rushed to the crushing plate at high speed, was first b-roken, then fell on the sieve plate, collisions between shear, extrusion, ring hammer grinding and material the materials are further broken, and through the sieve di-scharge machine, broken debris by ring hammer into the metal collector, clear reguarly by the operator.