Professional Bimetallic Screw Barrel & Plastic Machinery Parts ManufacturerDescription

Pin type rubber cold feeding screw barrel

Its function is to make the rubber material gradually become linear movement with the screw rotation movement, approaching to the direction of the head, and matching with the machine body to complete compression heat, softening mixing, and mixing rubber material.

Containing screw rotating in the barrel. When the screw rotates the thread to push the extruded material to move forward, the external heating conducts heat to the material by the cylinder, coupled with the gradual reduction of the screw volume, making the material suffer several force such as extrusion, turnover and shear, finally the material is evenly mixed and plasticized into molten viscous flow to complete the plasticizing work.

Specifications: Φ45mm-Φ250mm

Material: 38CrMoAlA

Processing: Nitriding and bimetallic

Nitriding Hardness: HV900-HV1000

Nitriding Layer Depth: 0.45-0.8mm

Nitriding Brittleness: Less than Grade 2

Surface Roughness: Ra 0.4

Screw Straightness: R0.015mm

Aspect Ratio: 1:(24-33)

Bimetallic: Alloy Layer 2-2.5

Low-viscosity wearproof resins

Applications: Hose, film, inner tube, tire, wire and cable extruders, general-purpose resins and engineering resins with glass fiber content below 35%, including PP、PA、ABS、POM、PBT、PC.

Application product:

Cable Industries	Plastic Granules	Blown Film Extrusion	PVC PE Industries	Tap Plant / Sheet Plant	Rubble Industries

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