We design and manufacture mechanical sealing systems specifically for the Aeronautical Sector.

The production of these systems stems from a strong collaboration with the manufacturers of these same aircraft support systems, which allows us to best meet the needs of the end customer.


The aerospace industry demands sealing solutions that are unique in their kind, capable of meeting high standards in terms of performance. As critical components of the aircraft, mechanical seals must withstand the most extreme conditions imaginable: high rotational speeds, extreme operating temperatures, as well as variable ranges of working pressures as the aircraft travels at different altitudes. Meccanotecnica Umbra provides absolutely customized sealing solutions based on design data.


Gearboxes are critical components of helicopters, transmitting power from the engine to the rotating blades. Meccanotecnica Umbra, at its Competence Center in Campello sul Clitunno, designs and manufactures sealing systems for this specific application, employing the latest technologies such as surface texturing.

Air Turbine Starter

(ATS) systems are used to start aircraft turbine engines. Despite their small size and lightweight, ATS systems can generate a considerable amount of torque to start the engine until it can run independently.

Auxiliary Power Units

(APU) are systems that provide power to the aircraft when the main engines are not operational, ensuring the safety and comfort of passengers and crew. They reduce fuel consumption and emissions during ground operations, ensuring the efficiency and proper functioning of the aircraft.

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