Pro Weld 1250i


The ARC-1250i is a compact, lightweight and portable stud welding power supply capable of welding studs up to 5/8″ diameter full weld base.  The fully regulated power supply uses inverter technology and digital controls, and produces a smooth, stable welding arc.  Both the weld time and weld current are continuously adjustable for precision and repeatability.  Extremely small and lightweight, the power source weighs only 79 lbs.

Please inquire about availability in your region.

Stud Diam. Range

14 ga. - 5/8"


50 - 1250 Amps

Weld Rate

5/8" 6 per minute


30 amp @ 460V, 60Hz @ rated output

Time Control

.01 - 1 seconds

Combo Cable

1/O x 50'

Ground Cable

1/O x 25' with clamp


  • Portable
  • Precise Digital Control
  • Ultra-Smooth Constant Current output
  • Full One-Year Warranty
  • Step-less Weld Current and Time Adjustment
  • Gun Short Circuit Protection
  • Heavy Duty Thermal Protection


18" H x 11" W x 27" D


79 lbs.


1 year parts and labor

Please refer to the operator's manual before using.