Sigma has significant experience supplying airframe tube assemblies to many ATA Chapters of well-known civil and military aircraft programmes. We deliver reliable tube solutions for a wide range of fluid conveyance systems to support the functionality of the aircraft, including hydraulics, fuel, pneumatics, water and waste.

We supply all types of airframe tubes & specialist pipes from simple bent tubes with swaged fittings to complex tube configurations with intricate machined and welded end fittings. The majority of the machined end fittings and associated fixture design and manufacture are supplied through our comprehensive in-house machining facilities. This broad in-house capability enables us to respond quickly to customer needs.


  • Beading & Flaring
  • CMM, AICON Lightbox & Laser Scanner
  • Induction Brazing
  • Torch Brazing
  • Manual TIG Welding
  • Orbital Welding
  • Robotic Welding
  • Small to Large Bore Bending
  • Swaging (Gamma, Harrison, Permaswage, Wiggins, Hydroflow, Roller)
Airframe Tube Assemblies

Each tube assembly has specifications that are unique to the requirements of the customer. Our extensive capabilities include tube assemblies with 1D bends and diameters ranging from 4mm to 75mm.


  • Anti-ice Tubes
  • Drain Tubes
  • Dual Wall Tubes
  • Fuel Pipes
  • Heating Coils
  • Hydraulic & Pneumatic Pipes
  • Oxygen Pipes
  • Piccolo Tubes
  • Spray Pipes
  • Vent Pipes
  • Water & Waste Pipes
  • Airframe Tube Assemblies
  • Airframe Tube Assemblies
  • Airframe Tube Assemblies

Sigma is experienced in working with several aerospace material types, including stainless steel, aluminium, titanium and high-temperature alloys, such as Inconel and Nimonic, in varying thicknesses. Alongside this, our level 3 technicians perform in-house surface and heat treatments of materials and non-destructive testing procedures such as dye penetrant inspection, pressure testing, electrical bond testing and x-ray inspection.

Contact Sigma

For more information on our airframe tube assemblies or to find out how Sigma can work with you to meet your requirements, please contact our sales team.