The LG soldering unit has proven an invaluable asset for the fast, economical repair of broken teeth. Operating on the resistance principle, the soldering unit first unsolders the broken teeth and then attaches the new carbide teeth with solder and flux. A recessed contact plate ensures precise, rapid insertion of every tooth. During soldering, the heating temperature can be continuously adjusted on the control transformer so it is exactly right for each individual blade thickness. This easy handling enables even inexperienced staff to perform safe and professional repairs.