AMS Shows How Custom Engineering Shapes Superyacht Doors and Tender Cranes

Advanced Mechanical Solutions (AMS) has outlined the development of its engineering and manufacturing operations in Ancona, where bespoke mechanisms for superyacht doors, balconies and tender-handling systems are designed and tested. The Italian specialist combines structural analysis with machining, composites production and mechanical assembly at an 1,800-square-metre facility opened in 2022.

Founded in 2005 by mechanical engineer Francesco Pelizza, the business began in consultancy before taking on manufacturing commissions from leading Italian yards. The company employs approximately thirty people and reported annual revenue of around €4.8 million in a July 2026 technical factory profile.

Engineering starts with the load path

Large shell doors, platforms and folding balconies impose concentrated loads on hull structures and hinges. Their safe operation depends on the strength and stiffness of the supporting structure, the travel geometry and the accuracy of sensors and locking systems.

Finite-element analysis can help engineers understand stresses and deflection, but simulations must reflect realistic operational conditions. Commissioning and physical testing remain important, particularly where a mechanism works near guests or valuable tenders.

Composite and metal structures must coexist

One AMS project involved a four-tonne-capacity A-frame crane for an explorer yacht intended to visit polar areas. Its support craft combined aluminium hull construction with a carbon-composite deck and superstructure, creating a challenge at the interface of dissimilar materials.

Direct contact between carbon and aluminium in a marine environment can encourage galvanic corrosion. AMS developed intermediate fibreglass components to isolate the materials while transferring structural loads, illustrating how apparently small joining details can govern service life.

From design office to factory testing

Bringing machining, assembly and composites work together can shorten the feedback loop between a structural calculation and a physical prototype. AMS says around half its Ancona premises is dedicated to composite production, reflecting growing demand for lightweight customised yacht components.

Production control is particularly important when parts cannot readily be replaced from stock. Dimensional inspection, documented material batches and proof testing help contractors demonstrate that a component matches the approved design.

Refit creates a different integration problem

Existing yachts impose fixed dimensions and access constraints, and the shipyard may have limited information about concealed reinforcement. Adding a new swimming platform or replacing a large hatch actuator can therefore require surveys, destructive inspection and careful coordination with naval architects.

Owners should allow time for engineering study before setting a final installation schedule. A mechanism that looks simple in operation may require substantial work in the compartment beneath the deck.

About AMS and its customers

The company has worked with Italian superyacht builders including CRN, ISA Yachts, Sanlorenzo and Benetti, supplying engineering solutions developed around individual projects. Its history includes a carbon-fibre awning mechanism commissioned by CRN and transom-door work for ISA.

The July profile is a detailed account of specialist supply-chain capacity, not an announcement of a freshly delivered yacht. Its significance is how advanced engineering businesses support increasingly complex exterior features that owners expect to operate reliably.