The ultra-fine mill is composed of three parts: the main unit, auxiliary unit, and electrical control system. It features a compact design and rational structure, with a wind selection system, no screens or meshes. The machine is equipped with a grading mechanism, allowing for both crushing and grading to be completed in one operation. The vacuum conveying system continuously exhausts the heat generated during the crushing process, making it suitable for the粉碎 of heat-sensitive materials. The machine has a wide application range, with a continuous production process and adjustable particle size of the output material. It can handle the crushing and grading of various materials such as chemicals, food, pharmaceuticals, cosmetics, dyes, resins, and shell materials.