DM high pressure roller mill is designed specifically for manufacture metallurgical and mining industry. Our company was based on the roller mill in operation at work ,where rolling material could not compromise with the hydraulic cylinder, resulting in the equipment increasing energy consumption at work and powder grinding efficiency reduced so on. At last, our company researched and developped successfully new high-pessure roller mill patented products. In operation, it works with low power consumption and coarse grinding operation in ore grinding and ore broken progress, also can be crushing 40-120mm block of mineral aggregate to 3mm to make the system beneficiation and grinding capacity have sizable promotion. DM is applied to metallurgy, mine, chemical engineering and it can be used in all kinds of materials’grinding that the mohs hardness is under9.3, while the original milling yield is incerased by 30% to 80%, the power consumptionper unit area yield of the system is reduced by 30% to 50%, so it reduce the cost of processing.