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Arc Machines Model 8 Narrow weld heads

Arc Machines Model 8 narrow weld head

Description

The Model 8 series weld heads are orbital weld heads for fusion (GTAW) welding of fittings, tubing and thin wall pipe. The narrow width of these heads makes it ideal for limited clearance applications, such as welding fitting to fitting or fitting to valve body assemblies. Welds materials such as stainless steel, titanium, Hastelloy™ and other autogenously weldable alloys.

A key feature of the Model 8 series weld heads is its unique cooling design, allowing high duty-cycle welding. When connected to an AMI cooling unit, all components of this weld head are liquid-cooled, including cables, clamp housings and electrode rotor.

A variety of clamps are available to perfectly suit every welding application. For fitting-to-fitting or tube-to-fitting welds the standard (narrow) clamps require the least amount of stick-out.

Compatible with all AMI Power Supplies.

Specifications:

Model 8-2000Model 8-4000Model 8-6625
Tube/Pipe OD Range0.25″ – 2.00″
6,3 mm – 52 mm
0.50″ – 4.094″
12,7 mm – 104 mm
2.00″ – 6.625″
51 mm – 169 mm
Travel MotorD.C., P.M., D.C. Tachometer
Head Weight6 lbs. (2,7 kg)10 lbs. (4,5 kg)17 lbs. (7,7 kg)
Electrode Size1/16″ and 3/32″ (1,59 mm and 2,38 mm)
Rotor RPM0.1 – 10.00.1 – 10.00.1 – 2.0
Cable Length25 ft. (7,6 m) when connected to adapter cable (included with Power Supply)
Water CoolingAllows high duty-cycle for heavy wall applications

Dimensions:

8-20008-40008-6625
Tube/Pipe
OD Range
0.25″ – 2.00″
6,35mm – 52mm
0.50″ – 4.000″
12,7mm – 104mm
2.00″ – 6.625″
51mm – 169mm
A13.44″
341,4mm
16.25″
412,9mm
20.26″
515mm
B2.81″
72mm
3.87″
97mm
5.42″
138mm
C2.75″
70mm
3.75″
95mm
5.50″
140mm
D5.50″
140mm
7.50″
190mm
11.00″
280mm
E*0.85″
21,6mm
0.85″
21,6mm
0.85″
21,6mm
F*1.75″
43,2mm
1.75″
44,5mm
1.75″
44,5mm

* “E, and F” dimensions with standard Model 8 (narrow) clamp inserts.