... material (i.e., alumina, silica, carbide, magnesite, quartzite, etc), ultra high purity quartz cleaning, graphite upgrading, manganese ore beneficiation ... glass raw materials cleaning silica sand, quartz, feldspar, dolomite, etc.Technical ParametersSpecifications2-RGC752-RGC1002-RGC1202-RGC1502-RGC2002-RGC300Roller Diameter(mm ... ) (mm) high gradient beneficiation for quartz, feldspar, dolomite, etc.