With the development and maturity of modern technology, it has a rapid upgrading and renew of coal grinding machine. And the material can achieve a very fine degree with wider application.

Impact crusher is a new type of high efficiency crushing equipment. It is characterized by small volume, simple structure, big crushing ratio (up to 40), less energy consumption, large production capacity, uniform end product size, and selective crushing effect, is a very promising devices. But it is the chief drawback of plate hammer and counterattack…