... pellets 2. Technical specification of Screw conveyor,hopper screw feeder, Lifting height : 2.5M-8.5M 3. Base Specification of Screw ... be used with the rotary vibration sieve, plastic extrusion machines, injection molding machines and other corollary equipments. It has the advantage of ... ,hopper screw feeder photos from workshop screw conveyor for unloading machines 10 tons/h vertical height 3 m