The machine is used to grind barite, calcite, potash feldspar, talcum, marble, limestone, ceramics, etc. whose Mohs' hardness is below 7 scales and humidity does not exceed 6%. All the stuff is non-inflammable and non-explosive. The product size is adjustable as required in the range of 100-325meshes. Now this series has a high ratio in home market. They are popular with cosmic companies and mineral factories. The powder is extremely fine.