Reliable Dull Mandrel for Air Conditioning Production:
Made from high-quality bearing steel and finished with a chrome-plated coating, this dull mandrel is designed to bend copper and aluminum tubes with precision. It comes in multiple shapes, including elliptical, semicircular, and thumb-shaped, and is compatible with small and long U-shaped tube benders. Widely used in the air conditioning industry for both residential and automotive units, as well as rail transport, it ensures bends that are smooth, bright, and free from imperfections. The mandrel works with tubes of various diameters, such as Φ4.76, Φ5, Φ6.35, and Φ7, and can be customized to meet your specific requirements.