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          Bimetallic Screw Barrel


          Technology Index:
          Material 38CrMoALA,
          Screw Straightness 0.015mm
          Cr-Plating Layer Hardness 850 HV
          Diameter D12-D300 mm Cr-Plating Layer Depth 0.03-0.10mm
          L/D Ratio L/ D=10-50 Cr-Plated Surface Hardness after Nitriding ≥900HB
          Nitriding Layer Depth 0.5-0.8mm Hardness after hot-treatment HB240-280
          Nitriding Layer Hardness 950-1020HV Nitriding Treatment Time ≥96 hours
          Nitriding Fragility Less Than Grade Two Bimetallic Layer Hardness 58-65 HRC
          Surface Roughness Ra0.4μm Bimetallic Layer Depth 0.8-2.0mm
            Our technical and engineering department offers decades of experience in the field of plastic machinery and screw design. We have developed our own line of screw designs which can be tailored to suit your demand. We complete orders quickly and cost effectively, and you can count on us to deliver high quality products quickly and on time.

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