Carbon Fibre Pultruded Tube 7mm × 4mm × 1000mm

Precision Pultruded Carbon Fibre Tube – 7 mm × 4 mm

The Carbon Fibre Pultruded Tube 7mm x 4mm delivers straight-line strength, tight dimensional control, and very low weight for precision structural builds. The pultrusion process pulls 100% unidirectional carbon fibre through a heated die, which aligns every fibre along the full length of the tube. As a result, the tube achieves exceptional stiffness in both tension and compression while maintaining consistent wall thickness from end to end.

With a slim 7 mm outer diameter and 4 mm inner diameter, this tube fits neatly into compact designs where space stays limited and accuracy still matters. At the same time, it provides reliable rigidity without adding unnecessary mass.

Performance Characteristics

Because every fibre runs in the 0° direction, this pultruded tube excels in straight-load conditions. Therefore, it performs best in:

• Push–pull load paths

• Long, straight unsupported spans

• Precision alignment systems

However, this construction does not suit:

• Torsional loading

• High side-impact loads

• Crush-dominated structures

• Motor-driven UAV or drone boom arms

For those conditions, designers should select a roll-wrapped tube instead.

How to Cut and Bond

This 7 mm × 4 mm pultruded tube cuts cleanly with a band saw, coping saw, scroll saw, end mill, or rotary cutting tool. Because the tube uses an epoxy resin matrix, it bonds extremely well with epoxy adhesives and laminating resins. As a result, builders integrate it easily into composite assemblies, fixtures, and jigs.

After cutting, sealing the ends protects the exposed fibres and improves long-term durability.

Typical Uses

• Scale aircraft and lightweight airframes

• Gliders and model aerospace structures

• Helicopter and UAV structural members (non-motor arms)

• Robotics and automation linkages

• Precision guides, jigs, and frames

• Engineering builds that demand high stiffness with very low mass

Technical Specifications

The pure axial fibre layout delivers outstanding push–pull strength while keeping overall weight to an absolute minimum.

Why Choose Enhanced Composites

Enhanced Composites supplies precision pultruded carbon fibre tubing for builders who demand repeatable sizing, clean fibre alignment, and predictable mechanical performance. In addition, we prioritise consistency just as much as raw strength, so every tube fits cleanly and performs exactly as expected in structural assemblies, fixtures, and motion systems.

FAQs

Is this tube suitable for drone motor arms?
No. Pultruded tubes cannot handle the torsional loads generated by spinning motors. Instead, designers should choose a roll-wrapped tube for that role.

Can I drill or machine this tube?
Yes. Light drilling and machining work well; however, builders should take care to prevent fibre breakout. After machining, sealing exposed fibres remains strongly recommended.