... .FeaturesThe diameters of each part of rollers and rings are different, the upper part is big and the lower part is small, then they ... sucked into centrifugal blower through wind recycling pipe at the upper part of cyclone powder collector. The mainframe is driven by the ... axis in the mill. The quincunx stand connected with the upper part of central axis, at the quincunx stand, rollers are set ...