The high-pressure roller mill is a piece of equipment with a simple structure and stable performance which can carry out fine and ultra-fine crushing operations and control the fineness modulus.  Our company has particularly considered the current market's requirements for crushing hard materials in the design. Compared with other high-pressure roller mills, its crushing capacity is greatly enhanced. It is applicable to fine crushing operations of medium-hard materials with a compressive strength of less than 250Mpa and a water content not exceeding 8%, such as cobbles, ceramic raw materials, quartz stone, limestone, slag, feldspar and other solid materials. The machine is characterized by low usage and maintenance fees, large crushing ratio, stable performance, small vibration, less dust and low noise. The high-pressure roller mill can also be used for fine crushing of various materials with medium hardness or less in such industrial sectors as mineral processing, power, chemical engineering, cement, refractory matter, abrasive and construction. It has a better effect than the general high-pressure roller mill particularly for the production of products (such as peastone and coal gangue) in the building materials and power industries. It can also be widely applied in the steel grit crushing industry.