For good plasticizing effect, we have different design of screw barrel to meet customer's demand. Injection molding machine screw ( screw nozzle for injection screw & barrel ) Diameter Φ15mm-Φ500mm Designing Screw structure and compression ratio can be designed according to different products & different clamping force requirement Materials 38CrMoAlA (JIS SACM645) SKD61 Application All kinds plastic & rubber and All kinds of glass fiber, the PPA ,PPS ,PA6T ,LCP, electric wood powder, magnetic powder ,iron powder and other special engineering plastics Nitride Case Depth 0.5mm-0.8mm Technology 1)Longer time Gas Nitriding treatment 2)special anti-wear & abrasion alloy (bimetallic) 3)tungsten carbide 4)cobalt base alloy 5)stainless steel 6)Gh113 nickel based alloy Nitride Hardness 1000-1100HV Packing Wrapped up by film in wooden Nitride Brittleness ≤Grade One Payment Term T/T , L/C Surface Roughness Ra0.4um D…