1.Uses: this machine is used for flour grinding and processing the mineral materials in metallurgy, building materials, chemical industry and mines and it can grind materials and supplies without being inflammable and explosive with Moh’s hardness less grade 9.3 and humidity below 6% as quartz, feldspar, calcite, speckstone, bolognian stone, bolognian stone, fluorspar, tombarthite, marble, ceramics, bauxite, manganese ore, iron mine, copper mine, phosphorus stone, iron oxide red, ziron, slag, water residue, cement grog, active carbon, dolomite, granite, garnet, iron oxide yellow, bean cake, fertilizer, compound fertilizer, flyash, soft coal, coking coal, lignite, magnesite, chrome oxide green, gold mine, red mud, clay, Kaoling, coke, gangue, china clay, disthene, blue john, alta-mud, medical stone rhyolite, pyrophyllite, shale, purple dinas, multiple rock, graystone, gyp, black lead, silicon-carbide and refractory.

-2. Features of high pressure flour mill：Compared with other mills at the same power, the yield can be increased by 20-30%. Rolling force of milling rollers on materials is improved by 800-1200kg with the function of high pressure spring.
Mineral materials with Moh’s hardness less grade 9.3 can be broken. It has a wide range for finished products granularity. The biggest grain size is 0.613mm (30 items) and the grain size usually is 0.033mm (425 items). The smallest grain size for some materials even can reach 0.013mm（1000items）.