TUBESHEET WELD HEADS
Models 424, 425, 426 & 430
Orbital Weld Heads for Fusion/Filler Wire Welding of Tube-to-Tubesheets
Use with Tubemaster Model 514A Power Source and Pipemaster Model 515 Power Source (Model 425 only)
Precision Tools for Precise, Repeatable Welds
These Magnatech weld heads are specifically designed for making tube-to-tubesheet welds. Configured for fast and simple operation, the Head is inserted into the tube to be welded, and the operator pushes the START WELD switch.
Multiple torch positioning adjustments allow virtually all tubesheet joint designs to be welded. All four models weld a wide range of tube sizes and operate in any position.
For welds requiring filler wire addition, an optional wire feeder can be mounted on the weld head. A standard wire spool, mounted directly on the Head, provides precise and positive wire feeding, not possible with floor-mounted feeders.
These weld Heads bring the productivity and repetitive precision of machine welding to the fabrication and repair of steam generators and heat exchangers.
All three weld Heads models are used with Magnatech power sources, ranging form simple to operate analog models to microprocessor-based systems with program storage capability.
TUBE GEOMETRIES Model 424 is ideal for all tubesheet geometries. Model 425 with AVC is for multipass welding Model 426 is ideal for fusion welding where preheat is not required Model 430 is ideal for fusion welding only and very light weight
| Process: | GTAW, TIG |
Weld Head Type: |
Open arc |
| Tube Size Range: | Model 424: 10mm - 78mm (0.4" - 3.07") ID Model 425: 10mm - 140.2mm (0.4" - 5.52") ID Model 426: 10mm - 70.1mm (0.4" - 2.76") ID Model 430: 10mm - 26mm (0.4" - 1.02") ID |
Functions: |
Torch rotation, Arc length control (Model 425 only), Filler wire feed (Optional, except Model 430) |
| Features: |
|
Options: |
|
| Applications: |
|
| WELD HEAD/CONTROLLERS SPECIFICATIONS | ||||
|---|---|---|---|---|
| Weld Head | Model 424 |
Model 425 |
Model 426 |
Model 430 |
| Applications | ||||
Joint Design |
Extended, Flush, Recessed and Internal Bore |
Extended, Flush, Recessed and Internal Bore |
Extended, Flush, Recessed and Internal Bore |
|
Pitch Pattern |
Triangular or Square |
Triangular or Square) |
Triangular or Square |
|
| Tube I.D. Size Range | 10mm-78mm (.4"-3.07") *10mm-38mm (.4"-1.5") with Electrode Angle at 30° *10mm-78mm (.4"-3.07") with Electrode Parallel to Tube |
10mm-140mm (.4"-5.52") |
10mm-70mm (.4"-2.76") *10mm-26mm (.4"-1.02") with Electrode Angle at 30° *10mm-70mm (.4"-2.76") with Electrode Parallel to Tube |
10mm - 26mm (.4"-1.02") |
| I.B.W. I.D. Size Range | 9.5mm - 80mm (.375"-3.15") |
N/A |
9.5mm - 80mm
(.375"-3.15") |
N/A |
Rotation Speed |
0.33-6rpm |
0.33-6rpm |
0.33-6rpm |
Max 5rpm |
| Filler Wire (Optional) | Rotates Coaxially with Torch |
Rotates Coaxially with Torch |
N/A |
|
| Wire Size | 0.8/0.9/1.0/1.2mm (.030"/.035"/.040"/.045") |
0.8/0.9/1.0/1.2mm (.030"/.035"/.040"/.045") |
0.8/0.9/1.0mm (.030"/.035"/.040") |
N/A |
| Speed Capablility | 0-1500 cmpm (0-60ipm) |
0-1500 cmpm (0-60ipm) |
0-1500 cmpm (0-60ipm) |
N/A |
| Spool Size | 1kg (2lbs.) |
1kg (2lbs.) |
1kg (2lbs.) |
N/A |
| Water-Cooled Torch | ||||
| Amperage Capability | 200 A Continuous |
200 A Continuous |
200 A Continuous |
100 A Continuous |
| Cable Length | 8m (25') Standard Extension Cables Available |
8m (25') Standard Extension Cables Available |
8m (25') Standard Extension Cables Available |
8m (25') Standard Extension Cables Available |
| Head Weights | ||||
| Weight | 8kg (18lbs.) |
9kg (20lbs.) |
5kg (11lbs.) |
1.2kg(2.7lbs.) |
| Weight with Filler Wire | 10kg (22lbs.) |
11kg (24lbs.) |
6kg (13lbs.) |
N/A |
| Dimensions | See Specification 424 |
See Specification 425 |
See Specification 426 |
See Specification 430 |
| Torch/Wire Nozzle Adjustment | 3 Axis Adjustment |
3 Axis Adjustment |
3 Axis Adjustment |
|
| Machine Body Cooling | Yes, Water |
Yes, Water |
No |
No |
| Torch-Workpiece Adjustment | ||||
| Manual | Threaded Ring ±5 mm (0.2") |
Threaded Ring ±5 mm (0.2") |
Threaded Ring ±5 mm (0.2") |
|
| Arc Voltage Control | No |
Yes |
No |
No |
| AVC Stroke | N/A |
16mm (0.625") |
N/A |
N/A |
| Weld Orientation | All (Vertical & Horizontal Gravity Positions) |
All (Vertical & Horizontal Gravity Positions) |
All (Vertical & Horizontal Gravity Positions) |
|
| Use With | Tubemaster
|
Pipemaster |
Tubemaster |
Tubemaster |
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