Dull Mandrel Description:

Constructed from high-grade bearing steel with a chrome-plated surface, this dull mandrel is designed to provide precise bends in copper and aluminum tubes. Available in various shapes—elliptical, semicircular, and thumb-shaped—it is suitable for use with both small and large U-shaped tube benders. It is widely used in manufacturing air conditioning systems for homes, automobiles, and rail transport. The mandrel delivers flawless, wrinkle-free bends and a polished finish. It works with pipes ranging from Φ4.76 to Φ7, with customizable sizes available.

Φ4.14, Φ6.0, Φ6.22, Φ6.85, Φ8.55, Φ8.8, Φ9.6, Φ10.6, Φ12.9, Φ14.1, Φ15.5, Φ16.5, Φ18.3

Guangzhou Runshi Mold Co., Ltd. focuses on the precision machinery manufacturing industry. Since its establishment, the company has mainly provided equipment molds, vulnerable parts, and cutting tools for air conditioning and heat exchanger manufacturing enterprises. It also provides ceramic parts and tungsten steel parts for industries such as new energy, fluid control, medical devices, semiconductor, aerospace, photovoltaics, lithium batteries, petrochemicals, high-precision automation equipment, electronic communication, automobiles, and so on.