Single Screw Barrel

As the core component of a Single Screw Barrel , the barrel is responsible for material conveying, plasticizing, and mixing. Its quality directly affects the production efficiency and final product quality of the extruder. The Single Screw Barrel is manufactured from high-quality 38CrMoAlA alloy steel using integral forging technology. After nitriding treatment, the surface hardness exceeds HV900 while maintaining good core toughness. This combination provides excellent wear resistance and corrosion resistance, allowing the barrel to meet the processing requirements of various plastic raw materials, including modified plastics containing fillers.

The inner wall of the barrel is precision-ground to achieve a high surface finish and accurate clearance with the screw, with a clearance tolerance of less than 0.02 mm. This ensures stable material conveying and efficient plasticization during operation. Different length-to-diameter ratios, numbers of heating zones, and feed port structures can be customized according to specific extrusion requirements, making the barrel suitable for a wide range of equipment, including laboratory extruders, small-scale production extruders, and high-output extruders.