This series of micro crushers consists of three parts: the main machine, auxiliary machine, and electronic control. They are compact in design, have a reasonable structure, and have a wind selection type without screens or nets. The machine is equipped with a grading mechanism, which can complete crushing and grading in one go. Negative pressure conveying continuously discharges the heat generated in the chamber during the crushing operation, making it suitable for the crushing of thermosensitive materials. This machine has a wide range of adaptability, continuous production process, and adjustable discharge particle size; Capable of crushing and grading various materials such as chemicals, food, pharmaceuticals, cosmetics, dyes, resins, shells, etc.