The paper introduces the preparation equipment of coarse DIP, including bale wire cutter, braker, leveling wheel, radiometric scale, drum pulper and combined sorter.

This maohine is afacilities to crush. as the same functjon as GS Machine. it can remove the stone by adding a screw trough it needs small energy. lowprize. it is for middle and small factory.

This machine is the 90's developments new center, the finely-broken stone equipment, also is in the present world widely uses in substituting the awl to be garrulous machine, the ball mill type .