Enclosed Weld Heads
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IBW Weld Heads
The ability to complete a weld from the inside can very often provide the solution to a
seemingly insurmountable problem. This can be achieved in a variety of ways using modified standard
OD weld heads or dedicated internal bore welding (IBW) heads. Applications typically require torch assemblies
that are tailored to suit the reach and diameter necessary to access the weld joint.
Some applications such as heat exchangers with back face IBW welds have been around around for a number of years.
However, the equipment and expertise required to successfully apply the process in this way can be difficult to source.
In recent years we have provided specialised equipment and application engineering for a number of IBW projects for the aerospace,
power generation and nuclear industries.
Outline drawing showing an Orbitec IBW weld head for a back face tube to tubesheet application
(photo shows the torch end at the joint prior to fitting the tube for welding).
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Water Cooled OSK-GW
For the highest duty cycle applications we can offer the gas-cooled OSK G series (starting from the OSK 53 G size) in a water cooled version (critical dimensions remain the same as for the gas cooled version). Full water cooling of the lower clamp housing. Also available as an upgrade for standard OSK G Weld heads.
Only one OSK-GW handle and cable assembly is needed for all OSK GW weld heads.
OSK GW/HD Handle and Cable Assembly, Item No. 1.3.2004
consisting of a handle, weld head interface, motor, gearbox and tacho/encoder unit with 8mtr long cable.
Weld heads available in GW format:
| Model: |
Tube Size Range:
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Weight: |
Item No.
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| OSK53-GW |
Dia. 6 - 53mm |
2.5kg
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1.3.2599
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| OSK76-GW |
Dia. 6 - 76.2mm |
2.8kg |
1.3.2699 |
| OSK115-GW |
Dia. 9.53 - 114.3mm
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3.5kg |
1.3.2799 |
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Weld Head
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A
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B |
C |
D |
E |
F |
| OSK53-GW |
140 |
73 |
210 |
430 |
44 |
22 |
| OSK76-GW |
160
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83 |
230
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445
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44
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22 |
| OSK115-GW |
200 |
103 |
270 |
485 |
44 |
22
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Collets for OSK Weld Heads
Available for immediate delivery:
We maintain a large stock of collets for all enclosed weld heads covering all the standard DIN, ISO and ASME OD Tube sizes.
1 set for each outside diameter = 4 collets
Collets for OSK21-G/C, Item No. 1.3.2321 + Ø
Collets for OSK38-G/C, Item No. 1.3.2021 + Ø
Collets for OSK53-G/GW/HD, Item No. 1.3.2521 + Ø
Collets for OSK76-G/GW/HD, Item No. 1.3.2621 + Ø
Collets for OSK115-G/GW/HD, Item No. 1.3.2721 + Ø
Table of standard Tube Sizes (OD)
Non-standard sizes and ‘specials’ are available on request.
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GTAW Weldheads CopperHeads® and DiamondBack®
Whether it’s for bench or portable applications, MK Products provides a solution when it comes to orbital welding systems.
CopperHead® weldhead
As our most cost effective and rugged in-place orbital weldhead, the CopperHead® series is an ideal cost saver for sanitary and high pressure tube systems. CopperHeads® are Liquid Cooled and come ready to plug into model 254-151 CobraTig® 150 XM and model 254-202 Advanced Color Logic® power sources.
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