Custom Filament Wound Tubes

Custom Filament Wound Tubes

THE Composite tube experts ◾ 3000+ mandrels in stock ◾ Tanks, pressure vessels, torque tubes, and more ◾ High volume production ◾ Longer length tubes

Our lead staff has been designing and building composite tubing for 25+ years … that’s a lot of tubes! We use the filament winding process for larger, longer parts and for higher quantity production runs. Filament winding is best suited for medium to large diameter parts of longer lengths, for example 1" through 24" diameter structures with lengths from 10' to 20'. It is also the most automated process for producing tubing and tanks and is therefore best suited for higher quantity production runs. With 6-spindle winders, we can maximize efficiency and keep costs constrained. Our team is experienced in all kinds of applications. If you have questions, contact us and request a quote.



Filament Winding Center of Excellence

Our Salt Lake City facility has an entire 20,000 sq ft manufacturing bay dedicated to this process, including wet tow and tow-preg winding, accommodating tubes in lengths up to 22 ft and diameters up to 30 inches. We have custom resin mixing and dispensing systems for precise resin mix ratios to assure mixing accuracy and consistency. Co-located for improved efficiency are several ovens, an extended length hydraulic mandrel extractor, and mandrel storage.


Case Studies


What is the filament winding process?

Continuous strands of dry fibers are:

  • Impregnated with epoxy resin (in situ)
  • Wound onto a mandrel via precise CNC control at various angles
  • Externally pressurized for compaction and then
  • Heat cured to solidify

After curing, the solid composite form is extracted from the mandrel as a tube. In the case of a tank or other closed end vessel, the mandrel could be left inside the composite form or dissolved out via various methods.


Filament Winding Bay