In the system of sand production line, jaw crusher is used for coarse crushing, and Stone Crusher Machine which is used for second crushing is impact crushing machine, and cone crushing machine is a fine machines. Of course, there still have other Stone Crusher Machine which are used in other occasion. In the usual situation, impact crushing machine are usually for second crushing machine.The reason is that impact crusher is a new type of high-efficiency Stone Crusher Machine, whose characteristics are small volume, simple structure, big crushing ratio, less energy consumption, large production capacity, uniform production size. The materials after crushing are cubic, and are convenient to the collaration of the sand production line, and increase the size of feeder. The new-type wear resistant materials make the lifetime of impact crusher and lining plate longer.

The Stone Crusher Machine is the most important rock crushing equipment in the whole set of sand production line equipment.The material become smaller under the action of the Stone Crusher Machine. Stone Crusher Machine is an important part of mineral processing process, and it can be divided into four stages: crushing, grinding, fine crushing, ultrastructure damage. The basic principle of the crushing machine is "more crushing and less grinding".