The PS-3K stud welding gun allows the accurate welding of studs with ignition tip as per DIN EN ISO 13918 on scribed or centre marked surfaces by using spring pressure. No auxiliary aids are required. This welding gun has been especially designed for use on workpieces with problematical surfaces. The PS-3K stud welding gun is of a sturdy and ergonomic design and can be converted to other stud welding systems.