Innovations in Paint Roller Core Production

Modern roller cores now utilize precision-molded polypropylene for durability and lightweight performance. Manufacturers employ injection molding at 400°F to create seamless cores with consistent wall thickness. Advanced cooling systems ensure dimensional stability, while automated quality checks verify each core's roundness. Leading factories can produce 20,000 cores daily with tolerances within 0.005 inches. Some premium lines feature ergonomic end caps molded directly onto cores. "Our new ribbed-core design improves paint pickup by 15%," reveals production manager David Chen of RollerTech Inc. The process minimizes material waste through regrinding excess plastic.