... conveyor,hopper screw feeder,spiral carrier: 1. Features of Screw conveyor,hopper screw feeder The machine adopts screw ... suitable for conveying various powder and little pellets 2. Technical specification of Screw conveyor,hopper screw feeder, Lifting height : 2 ... machines and other corollary equipments. It has the advantage of less occupying space , simplification working, saving manpower, improve ...