Custom-length pultruded carbon fiber tubes for a kite maker in Germany
A kite company in Germany needed pultruded carbon fiber tubes in its own lengths, not the standard 1000 mm. We supply 14 size and length combinations from 4 mm to 10 mm outside diameter.
The challenge
Kite frames are designed around exact spar lengths, and standard 1000 mm tubes would mean extra cutting and waste at the customer’s side. The customer needed tubes delivered at its own lengths.
What we supply
Pultruded carbon fiber tubes in four diameters, 4 × 2, 6 × 4, 8 × 6 and 10 × 8 mm, each cut to the lengths the kite designs need: 825, 1000, 1500 and 1650 mm. Pultrusion runs the fibers along the length, which gives the straight, stiff spars a kite frame relies on. Every carton is labelled with size, length and quantity so each box can be checked against the order.
| Product | Sizes supplied |
|---|---|
| 4 × 2 mm (OD × ID) | 825, 1000, 1500 and 1650 mm |
| 6 × 4 mm | 825, 1000, 1500 and 1650 mm |
| 8 × 6 mm | 825, 1000, 1500 and 1650 mm |
| 10 × 8 mm | 1000 and 1500 mm |
Delivery and result
Bulk production took about 30 days and finished two days ahead of schedule. The customer now buys more than 10,000 m a year.
Order and packing photos

