Jaw crusher is widely used in metallurgy, mining, building materials, chemical, cement and other industries. It is one of the main equipment for coarse and medium ore or rock crushing. It has simple structure, reliable performance, easy operation, convenient maintenance, safe use, etc.advantage.According to its structural characteristics, jaw crushers can be divided into PEF compound pendulum jaw crusher (namely single toggle jaw crusher) and PEJ simple pendulum jaw crusher (namely double toggle jaw crusher). At present, the largest jaw crusher designed and manufactured by our company is PEF 1521, with an output of 600m3/h.