Who does not remember Philips method the 50´s. where we should put a carbon piece between studs and the subject, wait ca 10 sec. until the carbon piece was warmed up and the stud welded.
With Dabotek it is easier.
Dabotek has already back to the 80s, sold the ´worlds fastest patented welding head known as SIK. SIK welds 50 to 60 studs per minute. This design is unique and is still the only welding head in the world who feeds the studs through the welding head.