This type of crusher is used in areas of cement, construction material and mining industries for the materials with breaking strength no stronger the 200Mpa. The size of feeding material is up to 450-1000mm and the average discharge size is ≤5-8mm, which is controlled effectively by multi-mode elastic adjusting mechanism. Unique design: back cover of upper case can be opened with hydraulic pressure (or hand operated) and replace components which are for easy maintenance. This feature has created the history of production of cement raw material in China by reducing 1/3 investment on the equipment and saving half of the power consumption as well as less maintenance cost. (the range of output from 40t/h to 500t/h).