UA 500 Arc Stud Welder (1/2″ Max Dia.)

The UA 500 is a single phase ARC stud welding unit. Capable of shooting 1/2” (M14) diameter studs. Unit mounted on heavy gauge steel case with handle. Includes tool box on board. Complete System includes Standard Duty Weld Gun, Ground Cable, and Extension Cable Set.

System includes solid state power supply and stud welding gun with legs and foot piece. 25 ft  of 1/0 ground cable with “C” clamp and 50 ft of 1/0 combination cable. See more premium features below!

UA 500 Spec Sheet

  • Welding Range: #4 TO 1 " DIA. 14 GA TO 1 " (M3 TO MR24, DIA. 2 TO 25 MM)
  • Welding Rate: 7/8"= 7 STUDS/MIN.
  • Welding Time: 5 TO 1500 MSEC (STEPLESS)
  • Weight: 209.4 LBS


The UA 500 Arc Stud Welder is a portable and efficient stud welding system, suitable for nearly any job site!

  • Capacity: The UA 500 boasts a welding range of 10ga – 1/2″!
  • Efficiency: Welds 12 studs a minute at 5/16″! (duty cycle ranges from 5 welds/min. to 14 welds/min., depending on stud diameter)
  • Portability: Convenient carrying handle. light weight. and wheel-mounted chassis make this arc welder exceptionally portable!
  • Adaptable: Variable voltage input: 208/230/460!
  • Accessories: The UA 500 comes equipped with an on-board tool box, allowing users to conveniently access all parts of the machine!
  • Technology: Solid-state circuitry with continuous time control of .05 to .07 seconds and single-phase power, allow you to weld efficiently and easily!
  • Everything you need to begin welding stud is included with purchase: solid state power supply, stud welding gun, and other necessary accessories!
  • Dimensions: 16in X 16in X 41in.

If you like to read more about the UA 500 Arc Stud Welder, view the spec sheet here: UA 500 Spec Sheet

For more information on this product, email or call our nearest office at 800-252-1919.

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