This high-performance screw barrel is engineered for both extrusion and injection molding machines, offering ±0.01mm machining tolerance to ensure perfect alignment and stability. Made from 38CrMoAlA alloy steel, nitrided to a surface hardness of HV950–1000, it guarantees excellent wear resistance and a service life of over 2 years under normal operating conditions. Suitable for processing PP, PE, PS, ABS, and more. Ideal for manufacturers needing long-lasting and precise solutions.