... suitable for conveying various powder and little pellets 2. Technical specification of Screw conveyor,hopper screw feeder, Lifting height : 2 ... 5M-8.5M 3. Base Specification of Screw conveyor,hopper screw feeder, 2255*775mm4. Material of Screw conveyor,hopper screw feeder, ... machines and other corollary equipments. It has the advantage of less occupying space , simplification working, saving manpower, ...