Specifications

With material and hard surfacing specification,we offer custom screw profiles that maximize the performance of the processing f

Single screw barrel

 

Our services include flexible lead times, custom designs based on application, design options for 

lower cost manufacturing, custom delivery schedules and technical support.

 

Technical specifications

 
Hardness of adjuster:HB240-280
Hardness of nitration:HV850-1000
Depth of nitration case:0.45-0.7mm
Fragility of nitration:≤grade 1
Roughness of the surface:Ra0.4
Linearity of the screw:0.015mm
The surface hard chromium plating hardness after nitrogenation:≥900HV
Chromium-plating layer thickness:0.05-0.10mm
Hardness of double alloys:HRC58-65
Depth of double alloys:0.8-2.0mm