Carbomax
Carbon Masts

Flagship Product

Carbon Masts for Yachts & Super Yachts

We manufacture seamless, one-piece carbon masts — monolithic in both section and length — up to 70 metres for offshore racing yachts and superyachts. Our autoclave, one of the largest in Europe dedicated to nautical spars, operates at 6 bar and 120°C and accommodates sections up to 1,200×600 mm, enabling the production of masts exceeding 6,000 kg — a scale achieved by very few manufacturers in the world.

Reaching these dimensions means confronting one of the most demanding engineering challenges in our industry: extracting the aluminium mandrel from profiles of such extraordinary size once the curing cycle is complete. Over more than thirty years of production, we have developed proprietary techniques that solve this problem with precision and repeatability — allowing us to deliver truly monolithic structures without any compromise on dimensional tolerance or structural integrity.

The lamination uses pre-impregnated carbon from leading suppliers including Gurit, Deltapreg and CIT — wrapped manually around the male mould to create a single-piece, jointless, hand-tapered mast with maximum fibre compaction, cured at constant and controlled temperature and pressure.

Why Autoclave Curing?

Our product is laminated on a male mould, compacted and cured in a pressure chamber at 6 bar plus the depression of the vacuum bag. This technology — derived from the aeronautical industry — guarantees a finished product of maximum lightness and elevated mechanical characteristics which fully exploit the properties of carbon.

The construction of carbon objects in an autoclave is considered superior to other types of manufacture: laminates remain more compact, the possibility of air bubbles within the laminate is greatly reduced, and the Tg (glass transfer temperature) obtained during the curing cycle is maximised.

One-Piece Technology

A mast without lateral joins means no risk of delamination at bonded interfaces under load — a decisive advantage in offshore racing and long-distance passages. The unidirectional 0° layer runs continuously along the full length of the mandrel, allowing the fibre to work in complete homogeneity. The bending profile follows a smooth, uninterrupted arc with no stiffness steps, no weak points and no geometric discontinuities.

The rigidity of a Carbomax mast is not only measurable on a data sheet — it is immediately visible in the yard. When the mast is lifted horizontally by crane before stepping, the difference compared to other manufacturers becomes apparent to the naked eye: a Carbomax mast barely deflects under its own weight. For any experienced owner or rigger, this is the most direct and convincing proof of what our construction delivers.

Throughout the lamination process we record the weight of the piece at every stage of the layup. This is not a routine quality check — it is the method by which we guarantee that the finished mast corresponds precisely to the theoretical design, gram by gram and millimetre by millimetre. When we deliver a mast, you receive exactly what was calculated and promised. No surprises, no approximations.

Materials

We work exclusively with pre-impregnated carbon from leading suppliers including Gurit, Deltapreg and CIT, stored in a dedicated refrigerated facility to preserve their mechanical properties until the moment of lamination. Our standard specification uses SE 84LV/HSC unidirectional cloth in T300 fibre (240 GPa) and SE 84HT/XC411 diagonal cloth in T700 fibre — materials that represent the benchmark for offshore racing, ORC, IRC and superyacht applications worldwide.

For owners who demand the absolute maximum in stiffness-to-weight performance, we offer high-modulus pre-preg at up to 380 GPa — the same class of material used in Formula 1 and the aerospace industry. Every mast is a bespoke project: fibre selection, orientation and laminate schedule are defined around the vessel's specific characteristics, its intended programme and the owner's performance targets, delivering a product built precisely around your requirements.

Mast Profiles Available

Standard carbon mast profiles (section in mm):

Wing mast profiles also available: 140×80, 210×105, 310×140, 410×206 mm. Maximum section achievable: 1200×600mm.

Photo Gallery

Retrofit Gallery — Named Superyachts