Cement ball mill is mainly used in grinding of finished products and raw materials in cement production. It's also applied to grind various ore and other grinding materials in metallurgical, chemical, electricity and other industrial and mining enterprises. It can be used to open-circuit grinding, as well as close-circuit grinding system together with separator. Cement mill has a strong adaptability to materials to production. It can be in operation continually and easy to control grinding fitness of production and so on. Ball mill of cement production is suitable to both drying production and wet production. What's more, the operation of grinding and drying can be done simultaneously.