the PCH series ring hammer crusher is One of crush equipment,this impact rotor crusher with ring hammer,the feeding Materials is crushed by impact effect from high speed revolution ring hammer with rotor,the crushed materials obtain kinetic energy from ring hammer at the Same time,rush to the breaking plate with high speed,by the second break,then Fell on the screen plate,materials is crushed further by Cutting,pressure,grinding from ring hammer and interaction each other, Discharged from screen.The sundries can not be crushed come into the metal Collector,cleaning regularly.