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. The whole Raymond grinder mill is of a standing structure. It features small occupying space and strong integration capacity. It can form an independent production system from the lump materials, crushing to finished powder and packaging. All the finished particles have a good uniformity of fineness, with passing screen rate as high as 98%. This is what other machine cannot reach.