Jaw crusher and as jaw crusher, jaw broken for short, is mainly used for a variety of ores and bulk materials of medium-grained broken, widely used in mining, smelting, building material, highway, railway, water conservancy and chemical industry. Maximum compressive strength of the material to be broken for the 320MPa. Features for the crushing ratio, even granularity, simple structure, reliable performance, easy maintenance, low operating costs. This series of jaw crusher (jaw crusher), a crushing ratio, even granularity, simple structure, reliable operation, easy maintenance, operating costs and economic characteristics. Jaw crusher is widely used in many sectors in mining, smelting, building material, highway, railway, water conservancy and chemical industries, breaking strength not exceeding 320 MPa of various materials. Jaw crusher jaw crusher jaw crusher in mining, building materials, infrastructure and other sectors is mainly used for crushing machine and the broken machine. According to the inlet width size into large, medium and small three, feed opening width is greater than 600MM for large machines, inlet width for medium-sized machine, the inlet 300-600MM a width less than 300MM for small machine. Simple jaw crusher structure, easy to manufacture, reliable, easy to use and maintenance. Working part jaw crusher is both jaws, one fixed jaw plate (fixed jaw), vertical (or slightly upper camber) is fixed at the front wall of the body, and the other is movable jaw plate (fixed jaw), location inclined to form the next big small crushing chamber (working chamber) and the fixed jaw plate. Movable jaw against the fixed jaw plate do periodic reciprocating motion, sometimes separately, sometimes close. When separated, the material into the crushing chamber, finished unloading from the bottom; close, so mounted between the two jaws of the material by extrusion, bending and splitting the role of fragmentation. Jaw crusher according movable jaw swing in different ways, it can be divided into simple swing jaw crusher (simple pendulum jaw crusher). Complex swing jaw crusher (compound pendulum jaw crusher) and integrated swing jaw crusher three.