This machine is composed of three parts: main machine, auxiliary machine and electric control box. It has compact design and reasonable structure. It has a winnowing type and no screen. The machine is equipped with a grading mechanism, which can make crushing and grading completed at one time. The negative pressure conveying makes the heat generated in the cavity of the crushing operation continuously discharged, so it is also suitable for the crushing of heat-sensitive materials. This machine has a wide range of applications, the production process is continuous, and the discharge particle size is adjustable; it can handle the crushing and classification of various materials such as chemicals, food, medicine, cosmetics, dyes, resins, and shells.