• Product features

    Diameter: from 15 mm - 500 mm

    Maximum length: ≤10000mm

    Mainly used in film blowing, pipe, profile, sheet, granulation, cable and other single screw extruder products.

    Extruder screw barrel can be mainly subdivided into:

    1. Screw barrel of film blowing machine;

    2, blow molding machine screw barrel;

    3. Pipe screw barrel;

    4. Granulating screw barrel;

    5, PP/PE packing with screw barrel;

    6, sheet, profile screw barrel;

    7, wire and cable screw barrel

    Extrusion screw - Extruder screw barrel


    1. Normal nitrided (38CrMoAla/SACM645)

    2. Double alloy thread spray-welding bimetallic

    3 full coverage of tungsten steel screw wlfram steel screw

    4. Full hard series hard scries type

    Cylinder barrel

    1. Normal nitrided (38CrMoAla/SACM645)

    2. Internal hole centrifugal casting alloy bimetallic barrel(ABC class 3 and

    3. hard series barrel

    Technical indicators

    Surface hardness: HV≥290

    Nitriding hardness: HV850-1000

    Nitriding depth: 0.45-0.7mm

    Nitride brittleness: ≤ first grade

    Screw straightness :0.015mm

    After nitriding surface chromium plating hardness: ≥900HV

    Chromium plating thickness: 0.05-0.1mm

    Double alloy hardness: 60-70 HRC

    Depth of alloy: 0.8-2.0mm