High-speed Screw and Barrel for HDPE/PPR PIPE Extrusion Line

Extruder Barrel and Screw Specification:Ø15mm~Ø360mm
Draw Ratio: L/D=7~55

Material:38CrMoALA
Hardness after hardening and tempering:HB240°~280°
Nitrided Hardness:HV850°~1000°
Nitrided Depth:0.45~0.7mm
Nitrided Brittleness:above 2 stage
Surface Roughness:Ra0.4
Screw straightness:0.015mm
Hardess of surface chromium-plating after Nitriding:HV≥900HV
Chromium-plating Depth:0.05~0.10mm
ALLoy Depth:0.8~2.0mm
Alloy hardness:HRC56°~65°
Alloy:iron,nickel,tungsten,molybdenum

Product Description:

1、Customized Design: We can design screw structures based on customer requirements and their configurations, assisting them in improving product output and achieving better plasticization. Our professional team will collaborate with you to ensure that the design of the screw and barrel aligns perfectly with your specifications.

2、Premium Materials and Three-Surface Alloy Process: We utilize high-quality materials, such as 38CrMoAla or 42Cr, to ensure excellent wear resistance and corrosion resistance of the screw and barrel. Additionally, we employ advanced three-surface alloy processes, including base diameter alloy, flight alloy, and flight lead angle alloy, to provide extended service life and enhanced stability in performance. These processes guarantee the screw’s high wear resistance, excellent corrosion resistance, and temperature stability, enabling it to maintain exceptional performance during high-speed extrusion processes.

 

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