The AC Resistance Butt Welding Machine is an industrial welding system that joins metal components by applying pressure and passing low-voltage, high-current electricity through their contacting ends. The resistance to current generates controlled heat, bringing the metal surfaces to forging temperatures and forming a robust joint without filler material. Equipped with advanced control units such as PLCs or microprocessor controllers, this machine offers precise regulation of welding parameters for consistent, repeatable results. Its welded joints are clean, strong, and free of spatter or deformation, making it ideal for high-volume production environments. This type of machine is widely used in hardware fabrication, mechanical component manufacturing, automotive parts production, and other sectors demanding high reliability and efficiency in butt welding operations.