Raymond pulverizer is used for the highly fine power processing of 280 materials in some trades of non-flammable mine ,chemical industry and building materials etc and the materials has the Mohs' hardness scale less than 9.3 level and the humidity of less than 6% and include barite,calcite,potashfeldspar,pencilstone,marble,limestone,dolomite,fluorite,lime,active,carclazyte, acticarbon,bentonite,kaoline,cement,phosphorite rock,gypsum,glass and heat insulating materials etc. The particle size of finished product can be adjusted from 80-325 meshes at random and the particle size of part materials can reach 2000meshes at the maximum