UBN-8 flash butt welder is a program-controlled machine,which is capable for performing welding operations on ordinary steel blades,high alloy steel blades and various kinds of hand blades. It is equipped with functions of program self-control between welding and annealing and the function of outside adjustment for upsetting pressure,welding voltage,annealing temperature and annealing time.UBN-8 butt welder enjoys the characteristics of precise setting,easy operation,you will have reliable butt joint with reasonable annealing hardness and super metallurgical structure by using UBN-8 without any welding flux.