Flour Milling Machinery HSSL SCREW CONVEYOR,Level Screw Conveyor It is mainly used for the level or gradient conveying of stock. Screw conveyor s ambient temperature is -20ã??50; stock temperature is below 200 °C; gradient: βâ?¤20°. The conveying length is generally shorter than 40 meters, maximally 70 meters. Made of high grade carbon Steel. With reducer. With anti-block system to ensure work safety.    Model Diameter of screw (mm) Pitch (mm) Rotating speed (r/min) Capacity (t/h) wheat flour HSSL16 160 160 60-160 2.5-6 0.8-2.0 HSSL20 200 200 60-140 2.5-6 0.8-2.0 HSSL25 250 250 60-120 2.5-6 0.8-2.0 HSSL 32 320 320 60-110 2.5-6 0.8-2.0 HSSL40 400 350 60-100 2.5-6 0.8-2.0 HSSL50 500 400 60-80 2.5-6 0.8-2.0