Which stud diameter and stud length can be welded?

The pin length is limited by the following criteria:

Minimum stud length: The minimum stud length results from the required insertion depth for sufficient fixing of the stud in the stud holder plus the required projection for the required formation of the welding bead as well as a material and diameter-dependent safety tolerance.

Maximum stud length: The maximum stud length is theoretically unlimited, but depends on the equipment required for welding. The stand must be long enough to support the stud sufficiently and the gun must be able to move the (higher) stud weight according to the welding task.

Stud length to stud diameter ratio: Especially for applications that require automatic separation and feeding, the stud diameter or flange diameter to stud length ratio must not be 1:1 in order to avoid rotating the stud during separation or feeding.