The selection of vertical mills is influenced by the properties of the materials in two aspects: one is the grindability, which is the question of how much force is required and how much work is consumed; The second is how much wear the material causes to the equipment during the grinding process. Due to the different forms of vertical mills, the power consumption and wear of different mills using the same raw material will vary. The power consumption and wear of different materials on the same vertical mill must be determined through testing.