Our machine adopts numbers of patents of mill, such as trapezium working surface, flexible connection, roll linked pressure boost, etc. It has totally covered many defects of traditional mill, like application, capacity, fineness, energy consumption, service life, etc and it is the ideal substitute of traditional mill, such as Raymond mill, high pressure suspension mill, ball mill, etc. Nowadays, it has been widely used in electric power coal industry, fireproofing, etc. And it has achieved large economic benefits and social benefits. Range of Application The machine is mainly suitable for the grinding of ore materials in these fields, such as metallurgy, building materials, chemical industry, mine. And it is suitable for processing kinds of non flammable and explosive whose hardness is below level seven and humidity is below, such as gypsum, talc, fluorite, iron ore, manganese ore, ore,calcite,limestone,marble,feldspar,dolomite,barite,granite,kaolin,bentonite,medical stone, bauxite, iron oxide red and other materials. Technical Advantage Solid structure, small coverage area, strong set, to make a production system from the block material to the finished products. The fineness of the finished powder is uniform, passing sieve rate is 99%,and other grinding equipment is hardly available. Important parts are made of high quality steel, and wear-resistant parts are made of high-performance wear-resistant materials, the wear resistance is high and it operate reliably.