Rags opening machine uses high-speed wire rollers combined with wear-resistant metal card clothing to mechanically tear and pneumatically separate various materials—including garment scraps, denim, knitted waste, waste yarns, and industrial fabric scraps—into reusable fibers suitable for downstream cleaning, combing, and spinning processes. During the opening process, airflow and centrifugal force remove dust, short fibers, and impurities, reducing contamination load on downstream equipment and extending the service life of the card clothing. Standard features include overload protection and safety interlocks, with optional integration of metal and spark detection systems to ensure comprehensive safety protection.