Twin screw barrel, bimetal screw barrel, double screw barrel, twin counter rotating screw barrel We supply various types of conical screw barrel according to customer's requirement. Size: Φ 35/Φ 75, Φ 45/Φ 90, Φ 45/Φ 100, Φ 50/Φ 105, Φ 55/Φ 110, Φ 60/Φ 125, Φ 80/Φ 143, Φ 80/Φ 156, Φ 92/Φ 188, Φ 95/Φ 188 etc. Material: Base material 38CrMoAlA, Welded inlay on the flight, prolong life of screw. Technical Index: Depth of Nitrated Layer: 0.5-0.8mm Hardness of nitration: 900-1020Hv Fragility of nitration: Less than grade 1 Surface Hardness of Nitrated Cr coating layer: ≥ 950Hv Hardness of Bimetallic Layer: HRC55° -72° Thickness of Cr-coating Layer: 0.03-0.08mm Depth of Bimetallic Layer: >2mm Easy wearing parts of barrel feed inlet made from imported anti-wear alloy can be improvde abrasion performance
