Model 8 Narrow Weld Heads0 pages
The widest range of orbital welding equipment in the world
The Model 8 series orbital weld heads are designed for fusion (TIG) welding of tube, thinwall pipe and fittings through the range of
0.25” (6 mm) to 6.625” (168 mm) OD (outside
diameter) and wall thicknesses up to 0.160”
(4 mm). The narrow width of these heads
makes them ideal for fitting-to-fitting welds
and other limited-clearance applications.
Model 8-2000
Model 8-6625
The Model 8 series weld heads incorporate a two-sided
clamping mechanism - precision machined and designed
to compensate for significant diameter variances while
ensuring positive clamping force and concentricity.
The insert sizes accommodate an extensive range of
applications and all Model 8 series weld heads are fitted
with water-cooling capability - for heavy wall material
welding and/or high duty-cycle requirements.
Model 8-4000
Model 8-2000
Tube/Pipe OD Range
Model 8-4000
Model 8-6625
0.25” - 2.00”
6,3 - 52 mm
0.50” - 4.00”
12,7 - 104 mm
2.00” - 6.625”
51 - 169 mm
Travel Motor
Head Weight
D.C., P.M., D.C. Tachometer
6 lbs. (2,7 kg)
10 lbs. (4,5 kg)
17 lbs. (7,7 kg)
1/16” and 3/32” (1,59 mm and 2,38 mm)
Electrode Size
Rotor RPM
0.1 - 10.0
Cable Length
25 ft. (7,6 m) when connected to adapter cable (included with Power Supply)
Water Cooling
Recommended for heavy wall or high duty-cycle applications
Compatible with all AMI Power Supplies.
0.1 - 10.0
0.1 - 2.0