Nitrided 38CrMoAIA Rubber Extruder Cold Feeding Single Screw Barrel

Product Description
The cold-feed rubber screw is the core component of a rubber extruder, specifically designed to directly process rubber compounds at room temperature. It enables efficient plasticization and extrusion molding. Its design enhances the effects of shearing and mixing, ensuring that the rubber compound achieves uniform temperature and plasticity.
Technical Specification
Nitride Case Depth:0.5mm-0.8mm
Nitride Hardness:950-1020HV
Nitride Brittleness:≤Grade One
Surface Roughness:Ra0.4um
Screw Straightness:0.015mm
Alloy Hardness:HRC65
Alloy Depth:1.2mm-2.0mm
Chromium Coating Thickness  :0.03~0.10mm

Cold feeding rubber screw and barrel:
Specification:Ф40-Ф300MM
Large aspect ratio:L/D=8-20

Hot feeding rubber screw and barrel:
Specification:Ф30-Ф250MM
Large aspect ratio:L/D=4-8

Pin rubber screw and barrel:
Specification:Ф60-Ф250MM
Large aspect ratio:L/D=12-18

Application
The cold feeding screw is mainly used for products such as conventional rubber sealing strips and rubber inner tubes that have relatively
low requirements for tightness.

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