A bimetallic screw and barrel is a high-performance component used in plastic and rubber processing machines, designed to enhance durability and efficiency. Made from two metals— a base material and a coating material— these components offer superior resistance to wear, corrosion, and high temperatures, making them ideal for demanding applications. Compared to mono-metallic alternatives, bimetallic screws and barrels last longer and provide better performance in processing tough materials.
These components are widely used in industries requiring corrosion-resistant and high-strength materials, such as in regrinding resin, calcium powder filling, fireproof additives, and plastics with up to 15% glass fiber. Advanced welding techniques, like STELLITE PTA for screws and special hard-facing for barrels, ensure a thick alloy coating (over 1.5 mm) with strong bonding, improving overall lifespan and efficiency