The machine (also called Raymond Grinding Mill) is used to grind barite, calcite, potash feldspar, talcum, marble, limestone, ceramics, whose Mohs hardness is below 7 and humidity does not exceeds 6%. They are all non-inflammable and non-explosive stuff. The product size is adjustable as required in the range of 100-325mesh.Now this series have a high ratio in home market. They are popular with the cosmic company, the mineral factory. The powder is extremely fine.