Bimetallic Rubber Screw Barrel

The bimetallic rubber screw barrel is designed for rubber processing, where high viscosity, abrasiveness, and corrosive additives demand exceptional durability from equipment. Our product features a bimetallic tungsten carbide cobalt-based alloy coating for superior protection. The alloy layer achieves a hardness of HRC 60-64, providing excellent wear resistance against abrasive rubber compounds. The nitride layer reaches HV 930-1000 for additional surface strength, while the bimetal depth of 2 millimeters guarantees long-lasting performance. This system is widely used in rubber extruders for tire treads, rubber profiles, hoses, seals, and calendering lines.

The bimetallic rubber screw barrel is designed to withstand the extreme demands of rubber processing, where high viscosity compounds, abrasive fillers, and corrosive additives rapidly degrade standard equipment. In tire manufacturing, these screw barrels are used in cold feed extruders that produce tire treads, sidewalls, and inner liner components with precise cross-sectional control. Rubber profile extrusion lines for automotive weatherstripping, window seals, and industrial gaskets rely on the barrel's wear resistance to maintain production consistency over extended runs. Hose manufacturing operations process reinforced rubber hoses for automotive, industrial, and hydraulic applications, where the barrel's bimetallic construction handles the high-abrasion steel wire reinforcement fillers common in these compounds. Calendering lines for rubber sheet production use these screw barrels to feed rubber compounds uniformly to the calender rolls for producing conveyor belts, roof membranes, and industrial sheet products.