TPN25 Inner Tube-Sheet Welding Head

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TPN25 Inner Tube-Sheet Welding Head Tube-Sheet Welding Orbital Welding System TPN25 Inner Tube-Sheet Welding Head Tube-Sheet Welding Orbital Welding System

  • Most popular inner hole welding expert
  • Suitable for inner hole tube to tube-sheet welding, with AVC tracking and long distance no- twisting

Product Description

This welding head is specially designed for inner tube to tube-sheet TIG welding, suitable for carbon steel, stainless steel, fusion, wire feeding or wire feeding after self-fusion. Tube ID should >φ25mm.

Support equipment: iArc400 Programmable Orbital Welding Power Source.

Application: Boiler, heat exchanger, military, power plant, petrochemical and so on.


  • Inner hole with wire feeding, meet various process requirements
  • No-wire-twist design and special wire feeding design to meet complex single-or multi-layer welding requirements
  • Auto AVC controlling on or off for manually adjusting
  • Specially made water cooling construction
  • Wire feeding with no twisting, with integrated wire feeding, 1.0KG wire spool


Material Carbon steel, stainless steel
Tube OD(mm) ≥Φ25
Depth for Inner Tube(mm) 20~80
Connection Tube insert, flush tube
Tungsten Diameter(mm) бщ2.4
Rotation Speed(rpm) 0.37~7.39
Arc adjusting Distance(mm) 15
Max Wire Feeding Speed(mm/min) 1800
Tungsten Diameter(mm) бщ0.8
Protective Gas Ar
Cooling Water
Cooling Flow(ml/min) ≥600
Weight(kg) 12(no cable)
Dimension(mm) 570x290x510

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