Specification：

Φ35/Φ35 ~ Φ250/Φ250

Length/Diameter Ratio: L/D=16~35

The anisotropic parallel twin screw can process plastic pipe, profile, plate (sheet), modified and hard and soft PVC granulation.

Technical Indexes

Depth of nitration case :0.4~0.7mm

Surface hardness :Hv900~1060 (HRc 56°~65°)

Surface  Roughness:Ra 0.4μm

Screw Straightness:0.015mm/m

Thickness of chromium coating:0.01~0.1mm

Alloy Thickness:1.5~2.0mm

Material:38CrMoAlA.  The spiral angle surface adopts double alloy imported alloy steel. After special treatment, it can effectively improve the wear resistance of the barrel screw and increase the service life.