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Zhejiang Jiayue Machinery Manufacturing Co.,Ltd
Add:No.7 Changxin Road, Yancang Subdisctrict, Dinghai, Zhoushan, Zhejiang, China
Mobile: +86-15958098091(Wechat, WhatsApp)

Contact Person: Jade Le

Bimetallic Screw for Injection Moulding Machine

Nitrided Screw for Plastic Machines Product Details Nitrided Screw for Plastic Machines Nitriding is a heat treating process that diffuses nitrogen into the surface of the barrel wall, to produce a hard surface on the working surface of the component. Depending on the size of the barrel either...

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Product Details

Bimetallic Screw  for Injection Moulding Machine and Extruder


Product Parameter

Bimetallic   Screw for Plastic Machine

Hardness After Hardening and Tempering

HB240 – 280

Screw Bimetallic Depth


Bimetallic Hardness:

HRC 58-60

Screw Diameter


Bimetallic Alloy

According to different raw   plastic materials

Product Details

Bimetallic Screw for Plastic Machines


The PTA powder plasma welding applies the positive and negative electrodes of arc welding, allowing the welding path to be completely welded with the base material.

The minimum possibility of the welding path becoming less rigid fully prevents the welding layer from peeling off – thereby effectively upgrading the life time of the screws.

PTA is a Nickel-based alloy. Its chemical composition includes Ni,WC,CO,Fe,Si,B,Cr and C.

Production Process


Application Area

Applications in Plastic Machinery



Abrasion resistance / wear resistance on the hardened layer is 2~3 times higher than that treated by conventional heat treatment.

Stock Room

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Package and Delivery



Q: Where is your factory located?

A: In Zhoushan City, Zhejiang Province, close to Ningbo and Shanghai.

Q: Delivery time ?

A: Around 25-45days, depends on different screw barrel.

Q:How about the packing method?

A: Screw barrel wrapped by PE film in Woodencases.

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