Find Screw Barrel, Screw And Barrel, Extrusion Screw on Industry Directory, Reliable Manufacturer/Supplier/Factory from China.

Inquiry Basket (0)
Home > Products > UV Coating Line > Nitrided Screw Barrel For Extrusion Line 
Nitrided Screw Barrel For Extrusion Line 
  • Nitrided Screw Barrel For Extrusion Line 
  • Nitrided Screw Barrel For Extrusion Line 
  • Nitrided Screw Barrel For Extrusion Line 
  • Nitrided Screw Barrel For Extrusion Line 
  • Nitrided Screw Barrel For Extrusion Line 
  • Nitrided Screw Barrel For Extrusion Line 

Nitrided Screw Barrel For Extrusion Line 

Product Description

Nitrided screw barrel for extrusion line



L/D ratio:16-35

Product classification

The compression ratio of screws can be designed according to different products and ingredients

Detailed Technical Information

Base Material

1)38CrMoAlA(JIS SACM645)

2)Cr12MOV(JIS SKD-11)
3)4Cr5MoSiV1(JIS SKD-61) 4)42CrMo(AISI 4140)


Bimetallic Alloy Materials

1)Fe-based alloy

2)Ni-based alloy/Deloro alloy
3)Co-based alloy

4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide

Bimetallic Alloy level  

Level A - containing Tungsten of 40%

Level B - containing tungsten of 25%

Level C - containing tungsten of 9.5%


Screw structure and compression   

ratio can be designed according

to different products  & different

clamping force requirement.

Treatment Technology

1)Longer time Gas Nitriding treatment

2)special anti-wear & abrasion alloy (bimetallic)

3)tungsten carbide

4)cobalt base alloy

5)stainless steel

6)Gh113 nickel based alloy


Nitriding treatment(>100 Hours)

Depth of Nitrided Layer: 0.5-0.8 mm

Hardness of Nitrided Layer: >950Hv

Hard Chrome Plating treatment:

Thickness of Hard Chrome Plating Layer: 0.03-0.08mm

Hardness of Hard Chrome Plating Layer: ≥950HV

Nickel alloy plating.treatment:

Bimetallic Barrel Centrifugal Casting (Inlay Alloy)

Bimetallic Screw: Plasma Alloy Coating Spraying

Depth of Bimetallic Layer: >2mm

Hardness of Bimetallic Layer: HRC55°-65°

Material Application

1)General Plastics


3)PA + GF(Glass Fiber)

4)Flame-resistant Reinforced Plastics

5)Modified Engineering Plastics

6)All kinds of Mixed Recycled Material(in Scrap or Granule),etc

Basic Infomation

Surface Roughness :Ra0.4um

Linearity of the screw: ≤0.015mm

Linear axis limit: ≤0.02mm

Hardness after Hardening & Tempering: HB260-300

Fragility of Nitration:≤Two grade

General Terms

Means of transport: Ocean,Air,Express

Production time: About 30 days after we receive the deposit and lead time will different according to the order quantity.

Warranty period

1-2years(Depends on the plastic raw materials)

Bimetallic: much longer lifetime.

Competitive Edge

1.Long lifetime,low energy consumption.

2.Wonderful plasticizing

3. Top-quality bimetallic screw and barrel

4. High wear resistance, resistance to corrosion

5. Fast and On time delivery

6. Best customer after-sale service!

Zhoushan Qunying Plastic Machinery Manufactory

  • 1
  • 2
  • 3
  • 4
  • 5
  Established in the year 2003, we, "Zhoushan QUNYING plastic machinery" are engaged in manufacturing and supplying a diverse range of Screw & Barrel and machines. These products are precision engineered using the best quality raw material that we procure from a trusted vendor base. Furthermore, the long lasting life, resistance against corrosion, dimensional accuracy, robust construction and economical prices of our range makes it suitable for heavy usage in most of the industrial applications. Our dedicated team of professionals ensures that we produce only defect-free products so as cater to the long list of clientele. We possess great process knowledge for designing different set of products according to the specific requirements of our customers. Besides, our team members work in complete synchronization with the clients for meeting their varied industry needs and demands.

Company Info
  • Company Name: Zhoushan Qunying Plastic Machinery Manufactory
  • Representative: Lu Miaojun
  • Product/Service: Bimetallic Screw Barrel , Injection Molding Screw , Extrusion Screw Barrel , Tungsten Carbide Screw Barrel , Twin Screw Barrel For Pipe , PVC Screws Barrels
  • Capital (Million US $): 300000RMB
  • Year Established: 2003
  • Total Annual Sales Volume (Million US $): US$2.5 Million - US$5 Million
  • Export Percentage: 21% - 30%
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: Fewer than 5 People
  • OEM Services Provided: yes
  • Contact Person: Ms. LU
  • Tel: 86-580-8340889
Email to this supplier
  • *Subject:
  • To:

  • *Messages:
    Your message must be between 20-8000 characters