HGM Series Ultrafine Grinding Mill is mainly applied to non-inflammable, non-explosive and brittle materials with Mohs hardness under six. Such as calcite, chalk, limestone, dolomite, kaolin, gypsum, etc, totally more than 100 kinds of materials. Product fineness can be controlled between 400-3000 mesh. Performance and features: 1.High efficiency Under the same final size and power, the product capacity of ultrafine mill is twice than jet mill and agitation mill. 2.Longer lifetime of spare parts The roller and ring are made of special material, which improve the grinding efficiency a lot. For same material and final size, the lifetime of its wearing parts can reach to more than one year, about 2-5 times as long as that of vertical shaft impact crusher and turbo-mill. Especially when handling calcium carbonate and calcite, the lifetime can reach 3-5 years. 3.High safety and reliability: There are no rolling bearings and bolts in grinding cavity, so problems caused by bolts shedding or wear of bearings and seal components will never happen. . 4.High fineness of products The product fineness can reach D97d5¼m. 5.Environment friendly The application of pulse dust collector and muffler reduce the pollution and noise of the dust, which has reached national environment protection standard.