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Zhoushan Vanscrew Machinery Co.,Ltd.
Zhoushan Vanscrew Machinery Co.,Ltd.  

Gold Index: 16069

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injection bimetallic screw 

Price: 800.0~5000.0 USD 
Payment Terms: T/T,L/C 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: ISC-45B
Production Capacity: 500sets/Month
Delivery Date: 35days
Material: 38CrMoALA
Nitrided depth: 0.45-0.7mm
Alloy Depth: 0.8-2.0mm
Means of Transport: Ocean
Packing: wooden
Brand Name: Vanscrew
Heat-treatment: Nitriding treatment
Nitriding hardness: Hv850-1000

1.screw and barrel
2.material:alloy-steel of high quality
3.processed to drawing or your request on output&raw materials

Technical Index (30g-25000g):

  • Depth of Nitrated Layer: 0.5-0.8mm

  • Hardness of nitration: 900-1020Hv

  • Fragility of nitration: Less than grade 1

  • Surface Hardness of Nitrated Cr coating layer: ≥950Hv

    The bimetallic barrel cylinder is a ind of cylinder with 2-3mmalloy of antibrasion.Erosion proof and high temperature cast on the inner wall on it.Contrast to common nitriding barrel. Its useful sfrvice life is grfatly improved.Bimetal has more obvious advantages when processing special plastic such as project plastic.Fluoride plastic,PPO etc.

     For our bimetallic screw,we have adopted a new technology of surface hardening process by the whole screw surface instead of only hard facing the screw flights by PTA treatment.


Alloy-Steel of High-quality



Nitriding treatment

Electroplated hard-chrome finish

High-frequency quenching

Spray coating Bimetallic-alloy

Vacuum quenching


Hardness After Hardening &Tempering:

HB240 -280

Nitrided Hardness:


Nitrided Depth:


Nitrided Brittleness:

≤Grade 2

Surface Roughness:


Screw straightness:


Surface Chromate-plating's Hardness After Nitrided:


Chromate-plating Depth:


Bimetallic-alloy Hardness:

HRC56 -65

Alloy Depth:


Bimetallic barrel:

Processing application:

Injection molding machines , extrusion machine    , bakelite machine

Processing range:


Maximum length:


Alloy composition:


Grade A:The content of 40%

Grade B:The content of 25%

Grade C:The content of 9.5%

Alloy thickness:


Application of the plastic range:

All kinds of glass fiber,the PPA ,PPS ,PA6T ,LCP,electric wood powder,magnetic powder,iron powder and other special engineering plastics  

Single screw barrel


ratio of length to diameter L/D=15~55

Bimetallic injection screw

skype Mr. Kevin Wu
Tel: 86-580-8050095
Fax: 86-580-8050057
Mobile: 136 6658 3666
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Company Info

Zhoushan Vanscrew Machinery Co.,Ltd. [China (Mainland)]

Business Type:Manufacturer, Trading Company
City: Zhoushan
Province/State: Zhejiang
Country/Region: China (Mainland)

Wu:   skype
Lucia:   qq

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