UN-5 bump welding machine (band saw blade) butt welding machine is mainly used for butt joint of woodworking saw blade and metal saw blade. It is equipped with steel belt cutting scissors. The whole machine is novel and reasonable in design, strong and excellent in output, simple and convenient to operate, does not need too much strength, does not need any auxiliary materials (such as silver and copper) to weld quickly, has firm joint, has strong tensile strength after annealing, etc. after years, excellent equipment for horizontal band saw, vertical band saw and metal cutting saw machine band saw blade connection (repair).