Custom machine design
Carbon composite tube winding
A recognized expertise
Composites-et-Technologies, a design office located in Châteaudun (28) has numerous skills focused on the design of special machines and high pressure systems, carbon composite manufacturing, HMI and softwares programming, and electronic boards development.
We specialise in design and assembly. When it comes to manufacturing and machining, we rely on our network of local partners. Their expertise in materials such as stainless steel, aluminium, titanium, carbon composite, Hastelloy alloys and PEEK enables us to meet your needs.
Nos clients sont aussi bien des grands noms de l’industrie française que des entreprises locales et nos secteurs d’activités sont multiples : aéronautique, armement, recherche pétrolière en laboratoire, énergie et environnement.
The audience award in the Innovation category was presented by Mathilde Bourges, Head of Communications and Public Affairs at Novo Nordisk, to Marc Lepretre, President of Composites & Technologies in Châteaudun.
This industrial SME based in Châteaudun has recognised expertise in the design and manufacture of specialised machinery incorporating very high pressures. Composites & Technologies has developed a manufacturing technology and a range of carbon composite products that are unrivalled on the market today."
Excerpt from the article ‘Innovation, performance, espoir, dynamisme local… Découvrez les sept lauréats du public de la 4e édition des Trophées des entreprises d’Eure-et-Loir’, published on 18 September 2025 at 11:06 p.m. by L'Écho Républicain.
Our know-how
Special machine
Control bench, production machine, high pressure system, syringe pump, measurement acquisition machine, ...
Carbon composite material
Réservoir carbone 1000 bars pouvant être chauffé jusqu'à 150°C, arbre de transmission jusqu'à 4m50 de long et 450 mm de diamètre, …
Manufactured with the wet filament winding method.
The union of both worlds
Integration of two 4.5 m long carbon composite tubes into an electric boat.
