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Dunchurch Technical Services

Arc Machines Model 79 series Orbital weld head

Description

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.

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).

 

Please call to discuss your application and arrange a demonstration.

  • Precision orbital welding heads – with or without filler wire – of tube, pipe, and fittings.

 

  • Versatile and compatible with a variety of joint
    designs, 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.

Manufacturer website: http://www.arcmachines.com/products/pipe-welding/model-79

Specifications:

 

——————–Model 79-2375Model 79-3500Model 79-4500Model 79-6625
Wall Thicknessup to 0.44″
11 mm
up to 0.44″
11 mm
up to 0.675″
17 mm
up to 0.75″
19 mm
Rotation Speed0.1 – 5.0 RPM0.05 – 2.0 RPM0.05 – 2.0 RPM0.05 – 2.0 RPM
Torch
(water-cooled)
200 A continuous
Duty Cycle
200 A continuous
Duty Cycle
200 A continuous
Duty Cycle
200 A continuous
Duty Cycle
Torch Adjustments:
Lead/lag
+/- 5°+/- 10°+/- 10°+/- 10°
Cross-seam+/- 0.25″
(6,35 mm)
+/- 0.375″
(9,53 mm)
+/- 0.375″
(9,53 mm)
+/- 0.375″
(9,53 mm)
Tilt in / tilt out15°/45°15°/45°15°/45°15°/45°
Wire FeederIntegral, cable-
mounted
5 – 100 IPM
On-board
5 – 100 IPM
On -board
5 – 100 IPM
On-board
5 – 100 IPM
Wire Spool Size2 lbs, (4″) standard
0,9 kg, (101,6 mm)
Low-profile standard
2 lbs., (4″) optional
0,9 kg, (101,6 mm)
2 lbs, (4″) standard
0,9 kg, (101,6 mm)
2 lbs, (4″) standard
0,9 kg, (101,6 mm)
Filler Wire Size0.030″ or 0.035″
(0,75 mm or 0,9 mm)
0.030″ or 0.035″
(0,75 mm or 0,9 mm)
0.030″ or 0.035″
(0,75 mm or 0,9 mm)
0.030″ or 0.035″
(0,75 mm or 0,9 mm)
Weight11 lbs.
5 kg
14 lbs.
6,35 kg
16 lbs.
7,25 kg
22 lbs.
10 kg