Magnetic powder brakes and clutches play a crucial role in the winding and unwinding processes by providing precise torque control, ensuring consistent tension throughout the operation. They offer advantages such as quick responsiveness, high energy efficiency, low maintenance costs, and silent operation, addressing various production challenges including tension instability, start-stop issues, energy wastage, frequent maintenance, and noise concerns. These devices find widespread application across industries such as printing, packaging, textiles, metal processing, food production, medical equipment manufacturing, electronics manufacturing, as well as automation and mechanical engineering. In these domains, they enhance production efficiency, optimize energy consumption, reduce maintenance expenses, and improve the overall work environment. The precise control provided by magnetic powder brakes and clutches makes them indispensable key components in winding and unwinding processes.