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Injection Molding Barrier Screw


Injection Molding Barrier Screw

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Brand Name : OEM

Place of Origin : China

MOQ : 1 pc

Payment Terms : T/T, Western Union, Paypal

Supply Ability : 100pcs per day

Delivery Time : 15~25 days

Packaging Details : Wooden Carton

Product Name : Custom Made CNC Lathe Milling Machining OEM Machining Extruder Barrel And Screw

Key Words : OEM Machining Extruder Barrel and Screw

Application machine : meltblown extruder

Material : meltblown

Nitrided hardness : >950HV

Surface treatment : bimetallic/nitride

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Custom Made CNC Lathe Milling Machining OEM Machining Extruder Barrel And Screw

Product Name
CNC Machining Screw Barrel for Extrusion
(Metals or plastic)
Alloy Steels/ Aluminum/ Brass/ Bronze Alloys
Carbon Steel/ Copper/ Stainless Steel/ Tool Steel
Cold Rolled Steel/ Bearing Steel
ABS/ Delrin/ Nylon/ PVC
Surface finish/treatments
Lead Times Available
Max: 2 Weeks (On Initial Order) Rush Services Available
(Special Capabilities)
Broaching/ Hobbing/ Slotting/tapping
Testing equipment
Projector, Calliper, micrometer, plug gauge, ring gauge, thread gauge
For light objects:
bubble pack individually to prevent from damaging
and scratches in transporting, then in carton;
for heavy objects:
wrapped in PE bags and then in wooden boxes

Main parameters of screw and barrel:

Material 38 CrMoAlA(JIS SACM645); 42CrMo(JIS SCM440)
Hardness of nitrogen treatment HV900°~1100°
Tempering hardeness HV240 ° ~280°
Depth of nitrogen layer: 0.6~0.8mm
Nitrided Brittleness above 1 stage
Surface Roughness Ra0.4 um
Screw straightness 0.015mm
Hardess of surface chromium-plating after Nitriding HV≥950HV
Chromium plating Depth 0.025-0.085mm
Alloy Depth 2.5mm-4mm
Alloy hardness HRC62°~72°
Heating-treatment nitrogen ,electroplated hard -chrome finish,high frequency quenching

Remarks :We can design and manufacture various kinds of screw barrel according to the customers requirement.

1. Parallel twin screw and barrel has the advantage of lower rotation speed, smaller shear stress between the small screw
2. Good plasticization, high productivity, small shear force, stable pressure , less wear and tear and low cost.
3. Parallel twin-screw and barrel is widely used in PVC products processing, especially for the production of PVC products with the output over 350Kg / h, because the parallel twin-screw and barrel costs less than conical twin-screw and barrel while it has more mature technology.
4. Parallel twin-screw and barrel is successfully applied in PVC plate, pipe, profile, pellet and mould, at the same time, it solved the technical problem of low foaming, high foaming, high filling, wear and corrosion.


Q: What information should be provided when inquiry price of screw and barrel?

  1. Conical / parallel twin screw barrel
    1. Extruder brand
    2. Model.
      eg. Jwell 65/132, LSE80/156, KMD114/36, BEX90/22 etc.
  2. Injection machine screw barrel
    1. Injection machine model
    2. Screw diameter
    3. Type A, B or C
  3. Single extruder screw barrel
    1. Plastic products
    2. Screw diameter & L/D

Q: What information need provided when confirm production drawing?

  1. gearbox nameplate, if machine made in China, only supply gearbox nameplate, that we can confirm the production drawing.
  2. If not from China, it is best to supply
    • connection flanges size (gearbox and mold)
    • thermocouple holes location, qty & size
    • screw shaft size
    • barrel outside sketch


1. Be brushed anti-corrosive oil on screw barrel.
2. Packed with film.
3. Packed in the wooden carton.

Welcome to your inquriry on our Custom Made CNC Lathe Milling Machining OEM Machining Extruder Barrel And Screw .

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