Jaw crusher can reach the crushing ratio of 4-6 and the shape of final product is even. It is widely applied to crush high hardness, mid hardness and soft rocks and ores such as slag, construction materials, marble, etc. The pressure resistance strength is under 200Mpa, that is, suitable for primary crush. Jaw crusher can be used in mining, metallurgical industry, construction, road and railway building, conversancy, chemistry, etc. 　　Features: 　　1. simple structure, easy maintenance; 　　2. stable performance; 　　3. even final particles and high crushing ratio. 　　Operating principle: 　　Jaw crusher machine uses motor as its power. Through the motors wheels, the eccentric shaft is driven by the triangle belt and slot wheel to make the movable jaw plate move by a regulated track. Therefore, the materials in the crushing cavity composed of fixed jaw plate, movable jaw plate and side-lee board can be crushed and discharged through the discharging opening. 　　Features and values: 　　l  High reliability 　　l  Both casting and welded frame construction 　　l  Top crushing performance 　　l  Wedge setting adjustment 　　l  Fast and simple maintenance 　　l  Easy and less costly to install 　　l  Excellent total crushing economy 　　l  Excellent suitability 　　l  Highly versatile: ready and able to crush all your Stones in stationary or semi-mobile installations.