With the development of cement equipment large-scale, intelligent, hydraulic technology has been widely applied in cement industry, such as raw material valve under vertical mill, lock the wind, cooling machine transmission, kiln body gear wheel and some supporting high and low pressure lubricating oil station, and so on.Nacre?hydraulic system has rich experience in the design of the hydraulic power pump station, the hydraulic station of the roller and the pump station of the precombustion furnace.