This machine adapts three rollers grinder controlled by hydraulic pressure from double-impeller pump.The basic work of machine such as feeding,discharging and size of materials is controlled by hydraulic pressure.It features high automatization content,convenient to operate and safe in use.Because the hydraulic system adapts plate type structure,its arrangement is more reasonable.The roller is cast by special alloy,its strength is high and its surface has high hardness and wear resistance property.It is an ideal equipment to grind high quality paste material.