4r3220 raymond mill +2000 case plants. Smooth and reliable performance. Higher production capacity. Power-saving. Application of 3r3220 raymond mill/pendulum roller grinding mill/pulverizer/grinder:. Also choice for nonflammable and non-explosive minerals of which mohs hardness is less than 9.3, moisture content is less than 6%, for example: quartz, feldspar, calcite, talcum, barite, fluorite, rare earth, marble, ceramic, aluminous bauxite, manganese ore, iron ore, copper ore, phosphorus rock, red ferric oxide, zircon, slag, granulating slag, cement clinker, active carbon, dolomite, granite, garnet, yellow ferric oxide, fertilizer, multiplex fertilizer, fly ash, soft coal, coking coal, lignite, magnesite, chromium oxide green, gold ore, red clay, clay, kaolin, coal tar creosote, coal slack, porcelain clay, cyanite, fluorspar, bentonite clay, medical stone, rhyolite, greenstone pyrophillite, shale, basalt, gypsum, graphite. Working principles of 3r3220 raymond mill/pendulum roller grinding mill/pulverizer/grinder :. Firstly, raw made of ... Is crushed by jaw crusher to the required size, which is lifted up to the hopper. Secondly, the raw made of ... Goes into the grinding chamber through the electro-magnetic vibrating feeder at an even rate. Thirdly, the raw made of  ore lifted by the shovel is ground into powder between the ring and roller. Fourthly, the powder is blown up to the cyclone collector through the classifier, which will be collected through the discharging valve.