double screw and barrel 1.Suitable plastic material:PP,PEetc. 2.Material:SACM-645,SCM440,38CrMoALA 3.high quality

double screw and barrel 

Size:screw diameter ø15-ø300mm

Maximum screw length :10000mm

 

1.Hardness of adjuster:HB260-290

2.Hardness of nitration:HV800-1050

3.Depth of nitration case :0.4-0.7mm

4.Fragility of nitration:less than grade 1

5.Rougness of the surface:Ra0.4

6.Linearity of the screw:0.015mm

7.The surface hard chromium plating hardness after nitrogenation≥900HV

8.Depth of double alloys:0.8-2.0mm

 

Used for granulation ,PP,PE,PA,PC,ABS,AS etc

We can manufacture various kinds of screw barrels