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.
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Model 8-2000 |
Model 8-4000 |
Model 8-6625 |
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Tube/Pipe OD Range |
0.25" - 2.00"
6,3 mm - 52 mm |
0.50" - 4.094"
12,7 mm - 104 mm |
2.00" - 6.625"
51 mm - 169 mm |
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Travel Motor |
D.C., P.M., D.C. Tachometer |
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Head Weight |
6 lbs. (2,7 kg) |
10 lbs. (4,5 kg) |
17 lbs. (7,7 kg) |
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Electrode Size |
1/16" and 3/32" (1,59 mm and 2,38 mm) |
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Rotor RPM |
0.1 - 10.0 |
0.1 - 10.0 |
0.1 - 2.0 |
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Cable Length |
25 ft. (7,6 m) when connected to adapter cable (included with Power Supply) |
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Water Cooling |
Allows high duty-cycle for heavy wall applications |
Illustrated Parts Breakdown:
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03-6764586
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03-6771280 |
