CINCINNATI,BATTENFELD, AMUT,REIFENHAUSER....we can do many kinds of machine screw barrel. Products: 1.Conical(parallel) twin screw& barrel Production scope: Conical twin screw and double holes cylinder Φ35/70~Φ92/178 Parallel twin screw and double holes cylinderΦ35/35~Φ250/250 CINCINNATI, BATTENFELD, KRUSSMAFFEI, BAUSANO and AMUT model spares. 2.Screw & barrel for single screw extruder Production scope: Screw diameter Φ20~Φ500 Maximum screw length 10,000mm Barrel inner bore diameter Φ500mm 3.Screw & barrel for injection molding machine Production scope: Screw diameter Φ20~Φ500 Maximum screw length 10,000mm Barrel inner bore diameter Φ500mm 4.Assembly parts of screw & barrel Technical data: 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: 0.03-0.08m Hardness of Bimetallic Layer: HRC55-72 Depth of Bimetallic Layer: >2mm