The A 22 is a heavy-duty Arc stud welding gun for 14 to 22 mm diameter studs, up to 25 mm on request. It handles stud lengths from 10 to 390 mm, delivers 9 mm of automatic length compensation, and uses an oil damper for controlled piston plunge.
Built for thick sheet and through-deck welding from 2 mm upward.
The A22 is configured for large-diameter stud welding operations where higher current transfer, controlled plunge movement, and extended stud lengths are required. Its design supports demanding fabrication work while maintaining precise mechanical adjustment capabilities.
The A 22 compensates 9 mm of stud-to-stud length variation automatically, without any manual adjustment between shots. For large-diameter welding elements with high tolerance variations, this maintains consistent weld quality across a batch without operator adjustments for stud length differences.
The welding current cable is positioned externally to reduce heat transfer into the gun body during extended welding cycles involving larger stud diameters and higher amperage demands.
Lift adjusts across a 6 mm range in precise 0.25 mm increments and locks via an arresting mechanism. Once set for a stud diameter and base material combination, the setting holds under the recoil forces of large-diameter arc stud welding.
The A 22 is specifically designed for through-deck welding, welding studs through corrugated steel deck directly to the structural beam below. The gun geometry, leg assembly options, and 390 mm maximum stud length range accommodate the additional stud protrusion and ferrule positioning that through-deck welding requires.
The A22 accommodates stud diameters from 14 mm through 22 mm and can be configured for studs up to 25 mm (1"), making it suitable for structural and heavy-fabrication welding requirements.
The slide bearing guiding the welding piston is fully sealed against weld spatter. At 14 to 22 mm stud diameters, the arc energy and spatter volume are substantially higher than in small-diameter CD or short-cycle welding.
Complete Stud Welding supplies the A 22 arc stud welding gun in both standard (93-20-290C) and US (93-21-290C) versions, with leg assemblies, compatible welding units, Arc weld studs in the 14 to 22 mm range, and all arc stud welding accessories available in the same order. Need assistance? We configure the full package for your stud size and application.
