For Ultrafine Mill, The hardness of the selected material must not exceed the range of the hardness of the material specified by the equipment. Otherwise, the hardness of the material will increase to a certain extent.    The point is the impurities contained in the material. If the ultrafine mill contains impurities that are difficult to produce, it will cause it to continue to circulate in the grinding chamber, which will accelerate the wear of the grinding roller.   Ultrafine Mill Production Line will cause the production cost of the ultrafine mill to increase. Therefore, only the anti-abrasion can solve the problem of production cost, while the anti-wear has three main operations. The above introduction is very clear, the point is the roller itself.    The production material, the second point is the hardness of the material, and the third point is the impurities contained in the material. From these descriptions, we can see that if high-hardness steel is chosen to produce the grinding roller and the ultrafine mill machine is in production The particle size of the material meets the requirements and the material contains no impurities, which can cause the parts of the house to wear out.