Welcome to Zhoushan Changjia Plastic Machinery Co., Ltd Official website!

简体中文| Add to Favorites|

Focus on the production of high-performance barrelscrew

famous brand in the screw hometown of China

National Service Hotline


Parallel Screw Barrel

Screw straightness:0.015mm
Tempering hardness:HB260-290
Specification:Φ50/2 (2 Represents twin screw),Φ65/2,Φ80/2,Φ90/2,Φ105/2,Φ125/2,Φ130/2,Φ150/2,Φ180/2,Φ200/2
Material:Quality 38CrMoAIA, high quality powder metallurgy materials
Birthplace: Zhejiang Province, China (mainland)

☎ We accept all kinds of custom services, welcome calls!
Products Details

Tempering hardness:HB260-290

Nitridation hardness:HV800-1050

Nitration case depth:0.4-0.7mm

Nitridation brittleness ≤ grade 1

Surface roughness:Ra0.4

Screw straightness:0.015mm

Chromium coating hardness after nitridation:≥900HV

Chromium coating thickness:0.05-0.10mm

Dual alloy hardness:HRC56-65

Dual alloy depth:0.8-2.0mm

Material and technology


Quality power metallurgy material

Cold/hot spraying hard metal technology

Advanced nitriding technology

Corrosion resistance, wear-resisting dual alloy spraying technology


Φ50/2 (2 Represents twin screw),Φ65/2,Φ80/2,Φ90/2,Φ105/2,Φ125/2,Φ130/2,Φ150/2,Φ180/2,Φ200/2

Customer Service Customer Service