The KHB12-80 is a professional-grade automatic tube-to-tubesheet welding machine specifically designed for precision welding of tubes and tube sheets. This equipment utilizes mechanical 360° rotating arc technology, keeping the workpiece stationary during welding and ensuring automatic welding around the tube end in all positions. It is suitable for welding tube sheets with diameters from φ12 to φ80mm. As a highly efficient and reliable automatic tube-to-tubesheet welding machine, the KHB12-80 is widely used in the manufacturing of boilers, heat exchangers, pressure vessels, and other related products.