... , feldspar, barite, fluorite, dolomite, garnet, carborundum, bauxite, zircon, marble, calcite, iron ore, rock phosphate, coal, ceram, slag and so on (400 ... meshes.Working FeatureIt has the same working principle as Raymond Mill, but its grinding device is fixed with 1000 - 1500 kg ... pressure is 1.2 times higher than that of Raymond mill given an identical condition and its output may increase 20 ...