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              1. Pro Classification  


                  Address: West City Industrial Park Dinghai,Zhoushan City,Zhejiang,China

                  Tel: +0086-580-2363797

                  Fax: +0086-580-2364972

                  Mobile: +86-13906804927

                  E-mail: sales@zstaisu.com




                Product Name: Conical double hole barrel

                Classification: Conical twin screw & barrel



                Bimetallic screw and barrel
                Processing application: injection molding machine, extrusion machine, Bakelite machine
                Processing range: inner diameterФ18mm ~ 400mm
                Maximum length: 5000mm
                Raw Material : 9Cr18MoV W6MoCr4V2 38CrMoAIA
                Surface treatment : Surface spray , Quenching Treatment
                Surface roughness: Ra0.4μm
                Surface hardness: 900-1050Hv 58-64HRc
                Range of plastic application: all kinds of glass fiber, the PPA, PPS, PA6T, LCP, electric wood powder, magnetic powder, iron powder and other special engineering plastics.

                Technical Parameters:

                1. Nitride Depth: 0.5-0.8mm
                2. Nitride Hardness: 950-1020HV
                3. Surface Roughness: Ra≤0.4um
                4. Screw Straightness: 0.015mm
                5. Bimetallic Hardness: HRC50-65
                6. Bimetallic Depth: 1.5-2.0mm