... gypsum, graphite, silicon carbide, insulation materials under the Mohs scale 9.3 degree, temperature 6% in flammable and explosive mineral ... vibration feeder, jaw crusher, dustpan hoister,electric motor, etc. R-type pendulum type ring roll pulverizer NameUnitspecifications,technology,performance data4R5Rgrinding ... 200mesh), screening rate 85% of the standard production conditions. R type pendulum mill