Description
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.
MOUNTING The Weld Head mounts entirely on one side of the joint, allowing use on pipe-to- pipe and pipe-to-fitting welds.
CLAMPING MICROMETER FINE ADJUSTMENT ON CLAMP Provides rapid Adjustment for Pipe O.D. Variation
ENGRAVED SCALE CLAMP ADJUSTMENT FOR PIPE O.D. (METRIC OR INCH)
REDHEAD WELD HEADS
| 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 | ||
 | |||
| 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 |
Applications
- Pharmaceutical
- Sanitary (Hygienic) Process Piping
- Food Processing/Dairy
- Brewery Tubing
- Power Generation
- Chemical
Options
- Extension Cables
- Fillet/Socket Weld Kit
- Extended Clamping Range Kit R-2 allows welding down to 21mm (0.84 inch) OD
- Extended Clamping Range Kit R-3 allows welding down to 50 mm (2 inch) OD
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