The machine is suitable for grinding the barite, limestone, kaollnite, ceram and slags, etc. which below scale 9.3 of Moth and below 6% shadness and 280-odd sorts of non-inflammable and non-explosive stuff in the trades of mining, metallurgy, chemical engineering and building material for high fine powder generating and processing . The Product size is adjustable in the range of 80-425 mesh. It is possible to produce 30-80 mesh coarse powder through special device in the machine.