AMI Model 79-2375 Weld Head

The Arc Machines' Model 79 series weld heads are economical, easy-to-use, sturdy weld heads designed for precision orbital welding - with or without filler wire - of tube, pipe, and fittings.* Package includes y and white cables


Each Model 79 weld head features Arc Voltage Control (AVC) for precise arc gap control, programmable oscillation (weaving) and a precision wire feeder and wire entry mechanics. All Model 79 weld heads operate using the GTAW (TIG) process and will accommodate a range of pipe sizes from 0.75" OD to 6.625" OD (19 mm to 170 mm) and wall thicknesses up to 0.75" (19 mm).


  • Precision orbital welding heads - with or without filler wire - of tube, pipe, and fittings.
  • Versatile and compatible with a variety of jointdesigns, such as “V” prep, “J” prep,socket and square butt
  • Accommodates tube, pipe and fittings from 0.75” OD to 6.625” OD (19 mm - 170 mm) with wall thicknesses up to 0.750”. (19 mm)
  • Will weld materials ranging from carbon or stainless steels to exotic alloys including Hastelloy®, Inconel®, and Monel® as well as all other TIG weldable materials.
  • Compatible with the AMI Model 227 and Model 415 Power Supplies.

Quick Specs
Wall Thickness up to 0.44"
Rotation Speed 0.1 - 5.0 RPM
Torch(water-cooled) 200 A continuous Duty Cycle
Torch Adjustments:
Lead/lag +/- 5°
Cross-seam +/- 0.25" (6,35 mm)
Tilt in / tilt out 15°/45°
Wire Feeder Integral, cable-mounted 5 - 100 IPM On-board
Wire Spool Size 2 lbs, (4") standard 0,9 kg, (101,6 mm)
Filler Wire Size 0.030" or 0.035"
(0,75 mm or 0,9 mm)
Weight 11 lbs. (5 kg)

Request a quote