WFJ series ultra-fine crusher is composed of three parts: host, auxiliary machine and electronic control. It is characterized by compact design and reasonable structure. It adopts the principle of air flow powder selection and no screen. The machine is equipped with a grading mechanism to complete the crushing and grading at one time. During the crushing process, negative pressure conveying is used to continuously take away the heat generated in the crushing room, so it is also suitable for the crushing of heat-sensitive materials. The machine has a wide range of applications, continuous production process, adjustable discharge particle size, and can crush and classify various materials such as chemicals, food, medicine, cosmetics, dyes, resins, and shell materials.