Bimetallic Injection Screw Barrel for Moulding Machine

  • Based Material: 38CrMoAlA, 40Cr, 42CrMo, SKD61
  • Warranty: 12 months
  • Application: injection moulding machine
  • surface roughness: Ra 0.4 um
  • alloy depth: 2-5 mm
  • Other treatment: Chrome for pvc
  • straightness: 0.015 mm/m
  • hardness after nitriding: HV950-1200
  • depth of nitrided layer: 0.6-0.9mm
  • Alloy hardness: HRC62-68
  • Product Detail

    Product Tags

    Technical Parameters for extruder screw barrel:

    Diameter: 15-300

    L/D ratio:15-55

    Or other according to requirement, we are rich experience in producing and designing for extruder screw barrel

    Product Name injection screw barrel
    Material 38 CrMoAlA(JIS SACM645); 42 CrMo(AISI 4140)Cr12MoV(JIS SKD-11);4Cr5MoSiV1(JIS SKD-61)
    Nitrided Hardness HV950°~1050°
    Hardness after hardening and tempering HB260 °
    Nitrided Depth 0.5~0.7mm
    Nitrided Brittleness Less than Grade 2
    Surface Roughness Ra0.4
    Screw straightness 0.015mm
    Hardess of surface chromium-plating after Nitriding HV≥950HV
    Chromium plating Depth 0.05~0.10mm
    Alloy Depth 3~5mm
    Alloy hardness HRC56°~65°
    Alloy(bimetallic) iron,nickel,tungsten,molybdenum
    Types of injection screw barrel Gradual type,mutant type,wave type,barrier type,double screen type,shunt type,separation type,exhaust type,pin type,mixed type,double-head type,three-head type,multi head type etc.


    Bimetal Injection Screw

    Barrelize Injection Screw is a high performance screw with customized properties to process plastic based on your requirements

    *Material: High quality 38CrMoAlA 42CrMo,Full Hard

    *Treatment: Nitriding,Bimetallic,Electroplating

    *Diameter of Screw: Can be cusomtizedΦ20mm~ Φ300mm

    *Suitable for plastic: PP,PE,ABS,AS,PS,PC,PET ect

    *Wide screw designs: Barrier flight screw, Dispersive Mixers,degassing type,Multi Start type,ect

    *Benefit: Improved product quality,increase plasticizing rate,minimize wear,boost output

    Product name

    Bimetal Injection Screw

    Barrel Material

    38CrMoAlA high-quality alloy structural steel

    Quenched and tempered hardness


    Nitriding hardness

    HV950±50 degrees

    Nitride layer depth



    ≤2 levels

    Alloy thickness




    Scope of application

    UPVC/PP/PE pipe production and profile production

    For good plasticizing effect,we have different designs of injection screw barrel for injection moulding machine to meet customer's demand.Our factory manufactures with high-quality material, applying the method of hardening and tempering and nitriding, thus it enjoys the characteristics of long working life, wear resistance, and anti corrosion. Besides, the technique of hard alloy spraying or chrome plating can be used on the working surface of screw, which will make it have better using effectiveness.

    Packaging & Shipping

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    Our Exhibition

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    Our advantages:

    1. Screw and barrel for various models

    2. Professional engineers design for you

    3. Over 20-year exprience in this line

    4. Insist on developing screw and barrel for more injection and extruder machine models

    5. Main market: Southeast Asia,Eastern Europe, South America,Africa

    Q1. Are you a trading company or a manufacturer?

    We are a BSCI&ISO-9001 certificated manufacturer.

    Q2. Can I place the customized order for different sizes, colors, materials,packings….?

    Yes, all the customized orders are welcomed.

    Q3. Could I get a QC report before delivery?

    Yes, the specific QC reports will be sent to you before delivery.

    Q4. Can I get a lower price if I place a larger order?

    Yes, the price will be modified according to your order quantities.

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