Screw for Rubber

SINGLE SCREW AND BARREL FOR RUBBER
According to the customer demands to make the goods.

Detailed Product Description
Material: Alloy-Steel of High-Quality
1) 3oAlA(JIS SACM645)
2) 42CrMo(AISI 4140)
3) and so on

Heat-treatment: Nitriding treatment
Vacuum quenching
Spray coating Bimetallic-alloy

Rubber Screw specifications:
Screw diameter: Φ 50 ~ Φ 500mm
Maximun screw length: 10000mm
Maximum barrel diameter: Φ 500mm

Specifications
Nitride layer depth 0.4 ~ 0.7mm
Surface layer hardness Hv900 ~ 1060 (HRc 56 ° ~ 65 ° )
Surface roughness Ra 0.4μ M
Screw straightness 0.015mm / m
Chromium plating thickness 0.01 ~ 0.1mm