OEM Automotive Power Relay for Battery and Electrical Systems

Material: Automotive mandrels are typically made of high-strength metal materials such as carbon steel, alloy steel, or stainless steel Shape: Mandrels are generally cylindrical in shape, with some products featuring steps, threads, chamfers, or locating grooves Size Range: Diameter typically ranges from Φ3 mm to Φ30 mm; length can be customized Internal Design: Some mandrels may have through holes, blind holes, or hollow structures internally to reduce weight or meet assembly and functional requirements Surface Treatment: Mandrel surfaces typically undergo various treatment processes, such as electroplating, nickel plating, blackening, polishing, or anodizing Manufacturing Process: Mandrels are generally manufactured using high-precision CNC turning, CNC precision machining, grinding, and other processes, and undergo rigorous dimensional inspection and quality control to ensure that dimensional accuracy, concentricity, and surface finish meet the standards for automotive parts