At present, the main application fields of bentonite are metallurgy, casting and drilling mud. The vertical roller mill and development of SBM heavy machine can better realize the processing and milling of bentonite. The series of mills have novel design, reasonable structure, small floor space, low power consumption, long operating life, low cost of wearing parts and high cost performance. It integrates crushing, drying, grinding and grading and conveying. The system is simple and compact. The floor space is about 50% of the ball mill system, and it can be arranged in the open air, so it can greatly reduce the investment cost. It can be used to grind bulk, granular and powdered raw materials into the required powdery materials. Bentonite has good physical and chemical properties and is widely used in petroleum, metallurgy, chemical, foundry, construction, plastics, rubber, paint, and environmental protection. The wider application of bentonite and the continuous development of bentonite grinding technology, bentonite has a good development prospects. It is widely used in the large-volume and high-fine grinding of pyrophyllite powder in the glass fiber industry; large-volume powder production of coal gangue powder in the coal industry; large-volume powder production of various chemical raw materials in the chemical industry; Large-scale powder preparation of low-, medium-, and high-hardness hundreds of ores; preparation of large-volume powders of various materials in other industries. SBM heavy machine 60 years of innovative research and development of vertical grinding equipment, with China's large grinding equipment R & D and production base, and has a comprehensive after-sales service system to fully protect the interests of customers.