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Technical Parameter for 38crmoala injection screw barrel  Screw & Barrel of Injection Molding Machine Amount of injection  30~90g Screw Diameter  30mm Screw Length 900mm Barrel Diameter  85mm Barrel Length 860mm  Materials 38CrMoAlA; Application PVC 9Crl8MoV; Packing Wrapped up by film in wooden high quality alloy steel Delivery Term 25 working days Technology Rough Machining Finish Machining Nitriding Sprey conating Bimetallic Screw polishing Payment Term T/T , L/C  Port Departure Shanghai/Ningbo Guarantee Common Nitrided:1-2 years Bimetallic: much longer lifetime Nitride Case Depth 0.5mm-0.8mm Screw Straightness 0.015mm Nitride Hardness 1000-1100HV Alloy Hardness HRC68-72 Nitride Brittleness ≤Grade One Alloy Depth 0.5mm-0.8mm Surface Roughness Ra0.4um    1.    Screw structure, compression ratio and material can be changed according to different products and output Remark: 2.    Technological Process can be chosed acoodring to your re…

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