... screw feeder,spiral carrier 1.Charging capacity:7tons/h 2.Hopper volume: 200-500L 3.Material:S.S 316 ... hopper screw feeder, Lifting height : 2.5M-8.5M 3. Base Specification of Screw conveyor,hopper screw feeder, 2255 ... powers and smaill particale materials, it can be used with the rotary vibration sieve, plastic extrusion machines, injection molding ... for unloading machines 10 tons/h vertical height 3 m