Due to its new feed system, the newly developed PH-6A automatic stud welding gun with magnet coil allows the semi-automatic and fully automatic feed of large and oversized welding studs of all types with or without flange. Studs of large dimensions can either be fed manually or fully automatically from the UVR-400 universal feeder via the feed chute into the stud holder. The PH-6A automatic stud welding gun is of a particularly sturdy and durable design and is even suited for the toughest professional continuous operation.