TORCH ROTATION
Uniform torch rotation is ensured
by a chain and sprocket drive using
a precision stainless steel bearing
assembly that is immune to heat.
Specifications
| R-1 (MODEL 427A) R-2 | R-2 (MODEL 428A) | R-3 (MODEL 429A) | |
|---|---|---|---|
| Application | Orbital GTAW welding of pipe-to-pipe, pipe-to-fittings | ||
| Pipe (tube) OD size range | 13 – 38 mm (0.5 – 1.5�?) | 33 – 90 mm (1.315 – 3.5�?) | 90 – 168 mm (3.5 – 6.625�?) |
| Filler wire module CE standards adopted |
Wire size: 0.8 mm (0.03�?) Max. speed capability: 1900 mm/min. (75 IPM) Spool size: 0.16 kg (0.35 lbs) |
||
| Arc gap control module | Mechanical, adjustable | ||
| Torch propulsion module | 0 – 4.0 rpm | 0–1.5 rpm | 0–0.6 rpm |
| Water-cooled torch | 200 A continuous | ||
| Torch adjustment capability | Torch lead/lag adjustment: ± 15 degrees (manual) Torch tilt adjustment: Requires optional socket weld kit |
||
| Cable length | 7.6 m (25’) standard. Extension cables available. | ||
| Power supply compatibility | Tubemaster 514, Pipemaster 515, Pipemaster 516 | ||
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| Dimensions/weights | R-1 (MODEL 427A) R-2 | R-2 (MODEL 428A) | R-3 (MODEL 429A) |
| Weight | 3.9 kg (8.5 lbs.) | 5.4 kg (12 lbs.) | 9.0 kg (20 lbs.) |
| Axial Clearance (Torch C/L to Rear Extremity) (A) |
127mm (5.0�?) | 10mm (0.41�?) | 127mm (5.0�?) |
| Axial Clearance (Torch C/L to Front Extremity) (B) |
10mm (0.41�?) | 10mm (0.41�?) | 10mm (0.41�?) |
| Width (C) | 140mm (5.5�?) | 191mm (7.5�?) | 280mm (11.0�?) |
| Radial Clearance Requirement (D) |
[140mm (5.5�?) – Pipe O.D.] ÷ 2 = Radial Clearance |
[191mm (7.5�?) – Pipe O.D.] ÷ 2 = Radial Clearance |
[280mm (11�?) – Pipe O.D.] ÷ 2 = Radial Clearance |
