Crusher is widely used in medicine, Chinese herbal medicine, western medicine, chemicals, feed, plastics, food, non-metallic mineral industries ideal for ultra-fine powder processing equipment. Crushing and grading machine is set in one, is a new combination of devices, with novel design, compact structure, easy maintenance, low energy consumption, high efficiency, uniform particle size, etc.; the machine with a hierarchical institution, can separate grading and crushed part of the relaxed, easy maintenance and cleaning; in the case of non-stop, free to adjust the particle size, narrow particle size distribution, the smallest up to 5-8um; wearing parts made of special wear-resistant materials, refined .