Impact crusher is used in crushing all kinds of materials whose fineness is below 500mm,and the pressure resistance around 360mpa. It has the features of big crushing rate, efficient crushing, easy maintenance and cubic shape with final product. It is an ideal mining equipment for high road and water conservancy. With perfect features and good performance, impact crusher is widely used in high road consruction, water conservancy and construction process of gravel and so on. It has a better accability in granite,limestone and cobble,etc.