Sprial chute 1.high capacity 2.stable structure 3.easy to operate 4.fine after-sale service Sprial chute applicationthis machine is used in classifying the gold ,the silver ,the lead ,the tunsten ,the tiatanium,the iron (red iron.brown iron)and other nonmentals Sprial chute technical parameter SizeDiameterBoreScrew pitchLay ratioSlant anqleHeadageCylinderFeed fractionDensityFerticityFloor ...