MD-72 parallel twin machine screws manufacturers for pvc

Specification

PX-φ45/2-φ150/2

（Length/Diameter Ratio）:L/D=18~40

Application

PVC profile(Door & window) / WPC(PVC,PE) / PVC foam board / PVC pipe / PVC compound etc

Brand Name:Batten

Applicable Industries:Plastic Goods Production, Plastic Goods Production

Material:38CrMoAlA

Hardening Hardness:HB280-320

Nitrided Hardness:HV900-1000

Nitrided Case Depth:0.45-0.8mm

Nitrided Brittleness:Less than Grade 2

Surface Roughness:Ra 0.4

Screw Straightness:0.015mm

Chrome Hardness:HV more than 950HV

Thickness after chrome:0.05-0.10mm

Alloy depth&hardness:0.8.-2.0mm/0.8.-2.0m