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Nitrided Bimetallic Screw And Barrel For Extruder Machine

Categories Twin Screw Extruder Parts
Brand Name: BLM-IV-1
Place of Origin: Jiangsu, China (Mainland)
MOQ: Negotiation
Price: Negotiation
Payment Terms: Western Union, L/C, T/T
Supply Ability: 1000 per Month
Delivery Time: 25-30 days subject to the clients' requirement and quantity
Packaging Details: packed and labeled according to the regulations and customer's requests.Great care is taken to avoid any damage which might otherwise be caused during storage or transportation.
Place of origin: Jiangsu,China
Material: 316L/X260/W6Mo5Cr4V2 or customized
Spare parts type: spare parts for twin screw exruder
Application: Machinery Repair shops,Food an Beverage Factory
Center distance: 26mm
Screw distance: 30mm
Dimension(LxWxH): 120x135x115mm
After warranty service: Video technical support,online support
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    Nitrided Bimetallic Screw And Barrel For Extruder Machine

    Hot sale Nitrided Bimetallic Screw And Barrel For Extruder Machine

    1 . Description

    Barrel Material

    high-quality alloy structural steel

    Quenched and tempered hardness


    Nitriding hardness

    HV950±50 degrees

    Nitride layer depth



    ≤2 levels

    Screw Material

    high-quality alloy structural steel crown spray-welded nickel-based alloy powder

    Alloy thickness




    Scope of application

    UPVC/PP/PE pipe production and profile production

    2 . For PE PP PPR bimetallic single plastic extruder screw

    Material of the screw barrel

    Screw barrel adapt high quality 38Cromaia raw material and due to different plastic material , screw barrel can spray bimetallic treatment which with more long service life.

    Surface Treatment--PTA Machine

    The bimetallic treatment of our screw by the PTA machine. It is a advance equipment which has not been broadly used in bimetallic treatment. Compare to the manual process the advantage is better temperature stability, dense structure and uniform thickness and not liable to crack.

    Centrufugal Barrel Bimetallic

    The bimetallic barrel is centrifugally cast a 2~4mm thick alloy coat on the output section of barrel inner wall which has excellent corrosion resistance, abrasion resistance and high working temperature. And its useful service life is greatly improved contrast to the common nitrided barrel. Bimetal has more obvious advantages when processing high calcium carbonate powder PVC mixture to enhance the abrasion life.

    High Speed Screw

    high speed and high yield extrusion based on high quality.
    the design concept of low temperature plasticizing ensures the extrusion of high quality products.
    high torque output, extra-large thrust bearing.
    gear, shaft for high strength alloy steel, carburizing, grinding treatment.
    high hardness, high finish, ultra-low noise.


    The screw can be work for PP PE PPR pipe tube extrusion, for sheet film extrusion and for profile extrusion. The screw barrel will design according to customer demand like raw material, final product and output.

    Technical Information for single screw barrel

    Main Base materials

    1.38CrMoAlA (SACM645)

    Main Alloy Materials

    1. Ni-based alloy/Deloro alloy

    2. SKD-61 (Special Tool Steel)

    2. Tungsten carbide/Wolfram carbide

    3. 42CrMo (Ultrahigh StrengthSteel)

    3. NiCo-based alloy

    4. DC53 (Cold WorkDie Steel)

    4. Fe-based alloy

    5. W6Mo5Cr4V2 (High-SpeedToolSteel)

    5. Co-based alloy

    Processing Technics

    1. Heat treatment

    Technical parameters

    Nitriding layer depth:0.5-0.8mm

    2. Quenching

    Nitrided hardness:900-1000HV

    3. Nitriding treatment

    Bimetallic layer depth:3 mm

    4. Bimetallic alloy welding for screw

    Bimetallic hardness:57~69HRC

    5. Bimetallic alloy centrifugal casting for barrel

    Hard-chrome plating hardness after nitriding:≥950HV

    6. Hard-chrome electroplating

    Chrome-plating layer depth:0.03-0.09mm

    7.Linearity of screw:0.015mm

    Surface roughness:Ra 0.4

    Quality Nitrided Bimetallic Screw And Barrel For Extruder Machine for sale
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