Rubber extruder screw

Specification: Φ50~250
Length-diameter ratio: L/D=5~25
Structure classification: rubber hot feed, cold feed, pin cold feed screw

Technical indicators:

Material selection of high quality 38CrMOAlA
Tempered hardness: HB 260~290
Nitriding hardness: HV950 ~ 1000
Nitriding depth: 0.45 ~ 0.7mm
Nitride brittleness: ≤ one level
Surface roughness: Ra0.4
Screw straightness: 0.015mm
Surface chrome plating: hardness ≥900HV thickness 0.02 ~ 0.04mm
Double alloy layer depth and hardness: depth greater than 2mm, hardness 60-78 HRC

Applications: tires, wires, seals, etc. (photos can be attached)

The company undertakes Φ50~Φ250 screw barrel business

1) Single piece processing
2) Supporting production
3) Upgrade the existing equipment

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