Place of Origin:Zhejiang, China

Brand Name:Batten

Material:38CrMoAlA

Process:nitriding & bimetallic

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

Application: twin conical screw barrel for plastic extruder machine

Functionality & application:

1. Application: PVC
2. Production output: 450kg/h~500kg/h
3. Lifetime: 20,000 hours

4. Old order from: West Europe,East Europe,South America,South Africa,Middle

Features: 
1.Accurate size
2.High capacity geometry
3.Wear resisting
4.Easy maintenance