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https://www.lesunscrew.com/products/extruder-open-screw-barrel.html

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 screw screw barrel 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, extruder 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.

As one of the most professional extrusion screw manufacturers, Lesun provides compound screw, barrel and screw, extruder screw material and more. Contact us to buy extruder screw or know more.