... back into the air blower, the road system is a closed cycle and mostly in the negative pressure flow state.Due ... , jaw crusher, dustpan hoister,electric motor, etc. R-type pendulum type ring roll pulverizer NameUnitspecifications,technology,performance data4R5Rgrinding roller QTYpiece45grinding rollerdiameter ... 200mesh), screening rate 85% of the standard production conditions. R type pendulum mill