The jaw crusher is a kind of crushing equipment that is widely used and can be divided into compound pendulum jaw crusher (i.e. single-toggle plate jaw crusher) and simple pendulum jaw crusher (i.e. double-toggle plate jaw crusher).

Generally, the compound pendulum jaw crusher is applicable for various ores and rocks with coarse/medium crushing and compression strength below 250Mpa. The crushers of three specifications above PEF0609 may also be used to crush various hard ores and rocks. PEF-X compound pendulum jaw crusher for fine crushing is only applicable for ores and rocks with hardness below medium normally, while the simple pendulum jaw crusher can be used to crush ores and rocks with various hardness and especially applicable to crushing of various hard and highly abrasive materials. The jaw crusher is a kind of crushing appliance that is widely used and is characterized by simple structure, reliable working, easy operation, convenient maintenance and low cost for equipment and production. In addition, it can be divided into compound pendulum jaw crusher (i.e. jaw crusher with crank and rocker mechanism for complex pendulum of movable jaw) and simple pendulum jaw crusher (i.e. jaw crusher with crank and double-rocker mechanism for simple pendulum of movable jaw) based on its structural features, which is widely used in such industries as metallurgy, mining, building materials, chemical industry and cement for coarse and medium crushing operations. The compound pendulum jaw crusher is suitable for crushing of ores and rocks with compression strength below 250Mpa, while the simple pendulum jaw crusher can be used to crush ores and rocks with various hardness and especially applicable for crushing of various hard ores and rocks.

The compound pendulum jaw crusher is mainly composed of frame body, movable jaw parts, toggle plates, locking devices with pull-rod spring and driving devices. The movable jaw is driven by motors for complex pendulum through triangle belt. Ores added into the crushing cavity crush subject to extrusion, splitting and bending due to pendulum of movable jaw. The ores crushed by crushing cavity are discharged out of the crusher at the moment of leaving fixed toothed plate.