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Zhoushan Sheen Machinery Co., Ltd.

China Manufacturer with main products: Screw Barrel, Single Screw Barrel, Conical Twin Screw Barrel, Parallel Twin Screw Barrel, Bimetallic Screw Barrel, Extruder Screw and Barrel,...

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Rubber screw and barrel

FOB Price: 100.00 - 1,000.00 USD/Set
Supply Ability: 300 Set/Sets per Month
Shipping: 25 working days after 30%payment
Payment Terms: L/C, T/T, Western Union
In Stock

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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Zhejiang in China
Packaging Details: 1st, products (screws or barrels) will be brushed anti-corrosive oil 2nd,packed with film,bru

Quick Details

  • Model Number: 7
  • Brand Name: sheen
  • nitriding treatment: alloy material

Specifications

Rubber screw and barrel

Specification:

Cold Feed Pin barrel screw specifications:Φ60-?300    L/D=12-18

     

Rubber cold feeding screw specifications:Φ45~Φ300    L/D=8-20

       

Rubber hot feeding screew specifications:Φ40~Φ300    L/D=4-6

   

We can design suitable screw and barrel for you according to different raw material and products!

Screw barrel Material

Material

Heat treatment

38CrMoALA,SACM645,42CrMo,DIN1.8550,SAE8550

Nitrided treatment

42CrMo, AISI4140

Hard-chrome plating

Cr12Mov,SKD11,SKD61,

High Frequency quenching

4Cr5MoSiV1,SKD-11,SKD-61

Bimetallic frist,then nitrided

YPT72, 4Cr5MoSiV1

HVOF

GH113

Temepture:300-1400

Base material 38CrMoALA chemical composition and main feture

This kind of material is made in China from SHANGHAI BAOSTEEL COMPANY.

C

Si

Mn

S

P

Cr

Al

Ni

Cu

Mo

0.35-0.42

0.20-0.45

0.30-0.60

<0.035

<0.035

 1.35-1.65

 0.70-1.10

 <0.030

 <0.030

 0.15-0.25

Screw barrel technical details

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 

Double-alloy level

Level A - containing Tungsten of 40%   

Level B - containing tungsten of 25%  

Level C - containing tungsten of 9.5%

Surface Treatment

Heat Treatment

High Frequency Treatment

Nitriding treatment(120 Hours)

Depth of Nitrided Layer: 0.5-0.8 mm                             

Hardness of Nitrided Layer: 900-1020Hv (HRC56°-65°)

Hard Chrome Plating treatment:

Thickness of Hard Chrome Plating Layer: 0.05-0.10mm             

Hardness of Hard Chrome Plating Layer: ≥950HV

Nickel alloy plating.treatment:

Bimetallic Barrel/Cylinder: Centrifugal Casting (Inlay Alloy)     

Bimetallic Screw: Plasma Alloy Coating Spraying

Depth of Bimetallic Layer: >2mm                                 

Hardness of Bimetallic Layer: HRC55°-72°

Basic information

Roughness of the surface:Ra0.4um                            

Linearity of the screw: ≤0.015mm

Linear axis limit: ≤0.02mm                                    

Hardness after Hardening & Tempering: HB240-280

Fragility of Nitration:≤Two class

Material Application

1)General Plastics                                

2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc

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

General Terms

Means of transport: Ocean,Air,Express

Production time: About 25 days after we receive the deposit and lead time will different according to the order quantity!

Our screw and barrel processing flow

Customer order----Product design(customer drawing)---Production flow arrangement----Material Procurement---Hardening and tempering--

--Drilling---Rough turning---Rough thread rolling(Alloy spray welding)---alignment---Fine thread rolling---Mixing---Alignment---High frequency treatment---Alignment---Polishing---Grinding----120 hours Nittriding treatment---Acid piclking----Polishing---Chrome plating----O.D.Grinding---Packaging and Shipping.

Package details

1st, products (screws or barrels) will be brushed anti-corrosive oil    

2nd,packed with film,brush oil

3rd,packed in the wooden case

Service Process

Service Guarantee

  • Free Service Charge

    ECVV doesn't charge any service fee to Buyers for buying this product.

  • ECVV Supply

    ECVV is responsible for supply, and provides product quality inspection, fund supervision and supply chain services.

  • Product Quality Commitment

    ECVV China Sourcing Agent will assess the reputation and supply ability of the factory and conduct field trips to select the high-quality Chinese factories for buyers.

  • Deposit Service Commitments

    In order to improve the quality of service, ECVV will charge for a 100CNY deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.

    After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.

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