All kinds of Single Screw & Barrel single/bimetallic screw barrel/screw barrel for injection machine/screw barrel for extruder machine we can supply.
According to your requirement, we can produce what you want.

Key words: Screw and barrel; Screw and barrel for injection screw and barrel for extruder
Single screw and barrel; Twin screw and barrel; Conical screw and barrel; Parallel screw and barrel; Bimetallic screw and barrel; Rebuilding screw and barrel; Rubber screw and barrel
Material: 38CrMoAlA, SKD11, SKD61, HPT2B, high quality alloy steel, etc
Technology: Nitriding treatment, alloy coating sparying, heat-treatment, etc
Appliance: PE, PVC, PP, etc
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Echnical index:
Depth of Nitrated Layer: 0.5-0.8mm
Hardness of nitration: 900-1020Hv
Fragility of nitration: Less than grade 1
Surface roughness: Ra 0.4um
Hardness of Cr-coating Layer: ≥ 950Hv
Thickness of Cr-coated Layer: 0.03-0.08mm
Hardness of Bimetallic Layer: HRC55-72
Depth of Bimetallic Layer: >2mm