Jaw crusher is a kind of machine which is mainly made of one stationary jaw plate and one movable jaw plate. As a kind of primary crushers, jaw crusher machine is usually used in different stones processing lines and metal mining production lines. Primary jaw crusher is widely applied in mining, metallurgy, architecture, highway, railway, water conservation, chemical industry and other industries, for different ores and big materials medium crushing.Features of Jaw Crushing Machine:1. The heavy eccentric shaft adopts forging, heat treatment, annealing, crack detection etc. processing,then it can guarantee the stability of main engineer.2. The inner bearing uses aligning roller, double row double roller bearing which can guarantee it with higher carrying capacity.3. Large adjustable range of discharge opening can meet the different requirements of different specifications.4. Deep crushing cavity and without dead zone, improve the ability of feed and output.5. The movable jaw assembly uses high quality casting steel;6. Simple structure, easy operation, convenient maintenance.Principle of Jaw Crusher Machine:Stone jaw crushers use electric motor for power. Through the motor pulley, the belt and sheave drive eccentric shaft which makes the movable jaw move reciprocally according to the predetermined track, then crush the material in the cavity and discharge the finished material through the lower port. The crushing way of this kind of jaw breaker is curved extruding type. The electric motor drives the belt and pulley, then the movable jaw moved up and down by eccentric shaft. When the movable jaw rises, the angle between the toggle plate and the moving jaw becomes larger, thus promoting the movable jaw plate close to the fixed jaw plate. At the same time, the material is extruded, twisted, and grinded and so on. When the movable jaw fall down, the angle between the toggle plate and the moving jaw becomes smaller, thus promoting the movable jaw plate leaves the fixed...