With the science and technology development of production, jaw crusher also to high-tech direction.With the enlargement of mining scale, and the increasing sand material requirements. By coal gangue crusher,coal gangue can be crushed to pieces before turning waste into recycling. Currently, on the market there are many coal gangue stone crusher which can be used to crush coal gangue,however, the most common equipment is impact crusher, jaw crusher,sand maker and so on. In the past, stone crusher plant, coal gangue was considered as worthless junk resources, but now coal gangue is no longer thought of as a huge quantity of solid waste. Aggregate producers and recycling professionals saw new crushing and screening equipment in action. The event introduced jaw crusher and served as a step in the training process for the dealership’s sales force. The motor transmits power through belt, drives the moving jaw do periodic motion to the fixed jaw surround the eccentric shaft. The angle between toggle plate and moving jaw increases when moving jaw moves up. So the moving jaw closes to the fixed jaw. The stuff will be crushed in this process. The angle of Jaw Crusher between toggle plate and moving jaw decreases when moving jaw moves down, the moving jaw of Jaw Crusher moves away from fixed jaw by the pulling of rod and spring, cement mill, the products after crushing will be discharged from the outlet of Jaw Crusher. Jaw crusher, including simple swing jaw crusher and complex swing jaw rock crusher two types,They are similar in their works, the trajectories of moving jaw have bigger difference.Simple swing jaw crusher,because of the moving jaw is hung on the supporting shaft,so when the moving jaw makes reciprocating motion,the trajectories of each point on the moving jaw is circular,and under the horizontal stroke is small,and at the bottom of the moving jaw (row ore mouth) is the largesaggregate jaw crusher: http://www.china-sandmaker.com/product/pp6.html