The Impact Crusher is used for primary, secondary, fine crushing mining and rocks (for example, the granite, marble, and limestone) materials with compressive strength less than 350 MPa. The impact crusher is widely used for sand and rock producing in the industry of roads, railways, reservoir, electricity power and building materials and so on. Working Principle Of Impact Crusher Features Of JOYAL Impact Crusher 1. Cubic shaped end products; 2. Adjustable end products sizes, simple crushing process; 3. High chrome and abrasion resistant board hammer, powerful impacting force;