The extruder open screw barrels are used in the feeding section, the natural exhausting section and the vacuum exhausting sections. Depending on the materials produced, the placement of the open barrel is different. The opening shapes of twin barrel screw can be square, rectangular, and round above the natural exhausting port and the vacuum exhausting port, and there must be a suitable "material stopper" arranged in the opening to reduce the return of material.

Technical Data of Extruder Open Screw Barrel

Brand:LESUN, screw and barrel manufacturer

Model:φ20 mm ~φ300 mm

Material:38CrMoALA / W6Mo5Cr4V2 / HIP

Properties: Wear-resisting, Corrode-resisting, Durable

Application: Extruder

Material & Properites for Extruder Open Screw Barrel

1.Bi-metal liner +45# steel cylinder: high wearability, repair easily and cost-effective

2.N00 nitriding steel: good anti-corrosion performance

3.H6 or D11 : higher wearablity and corrosion resistance, easy to repair.

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