Jaw crusher, referred to as jaw crusher for short, is mainly used for medium size crushing of various ores and bulk materials in sand and gravel plants, mining,coal mining, dry powder mortar in concrete mixing stations, power plant desulfurization, quartz sand, etc. It is widely used in mining, smelting, building materials, highways, railways, water conservancy and chemical industries. Coarse, medium and fine crushing of various ores and rocks with crushing compressive strength of 147- 245MPa.The maximum compressive strength of the material is 320MPa. The performance features large crushing ratio, uniform product particle size, simple structure, reliable performance, simple maintenance and low operating cost.Scope of application: ore stockyard, quarry mining, coal mining, concrete mixing station, dry powder mortar, power plant desulfurization, quartzite and other .Applicable materials: river pebble, granite, basalt, iron ore, limestone, quartzite, diabase, iron ore, gold mine, copper mine, etc.The jaw breaking structure is mainly composed of eccentric shaft, large belt pulley, flywheel, movable jaw, side guard plate,elbow plate, back seat of elbow plate, clearance adjusting screw, return spring, fixed jaw plate and movable jaw plate, etc.The elbow plate also plays a role of insurance. With the continuous rotation of the motor, the jaw of the crusher moves periodically to crush and discharge materials, so as to achieve mass production.