Product Details
Physical Characteristics of Bimetallic Screw
Type |
Model |
Hardness (HRC) |
Wear Resistant |
Corrosion Resistant |
Thickness |
Application Glass Fiber |
PTA Weld |
J1 38CrMoAlA Ni-base alloy |
45-58 |
Excellent |
Special Excellent |
1.5~3mm |
Under 10% |
J2 SKD61 Ni-base alloy |
45-58 |
Special Excellent |
Excellent |
1.5~3mm |
Under 15% |
|
Nitriding |
J3 Nitrided |
HV more than 800 |
Good |
Good |
0.25mm |
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|




This product is specifically designed for PVC extrusion systems and features a nitrided surface to enhance durability and performance. The screw and barrel are made from high-quality alloys such as 38CrMoAl, 9Cr18MOV, SKD, DC53, and GH113, ensuring long-lasting use under demanding conditions. The nitrided layer has a depth of 0.5–0.8 mm, while the alloy layer reaches up to 3 mm in thickness. Surface roughness is maintained at Ra0.4um, providing smooth operation and minimal friction. The chrome-plated layer adds an extra layer of protection with a thickness ranging from 0.025 to 0.085 mm. These components are ideal for industrial applications where precision and reliability are crucial. The product can be shipped in wooden cases or customized packaging based on customer requirements. With a linearity tolerance of 0.015 mm, this screw and barrel set ensures consistent quality and efficiency in production processes.
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Mianyang Xinyu Agricultural Machinery Manufacturing Co., Ltd , https://www.xypressring.com