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Qingdao Haixi anticorrosive insulation equipment tells you: in order to improve the feeding efficiency of the extruder, the mechanical device is generally used for auxiliary feeding. One of the commonly used auxiliary feeding methods is screw feeding.

Spiral feeding

Spiral type feeding is suitable for raw materials that are not easy to be bridged, suitable for particle crushing less than 12×12mm; Semi-plasticized extruded dry material crushing is less than 25×25mm; Bulk crushing is less than 25×25mm; Bulk density is greater than 300kg/m3; Moisture content is less than 10%.