The impact crusher is designed as a three-chamber crushing zone. It can crush all kinds of coarse, medium and fine materials with compressive strength not exceeding 350Mpa and side length of 100-400mm. The crushing ratio is large, and the finished product is cubic, without tension and crack. The shape is uniform. The impact crusher is mainly used for the second stage crushing of the crushing production line, as a “waiting crushing device” for the material after the jaw crusher is processed.