Trelleborg to Make Seals for Boeing 737 MAX and 777X at Casablanca Plant
Swedish industrial group Trelleborg is transferring production of components for the Boeing 737 MAX and 777X to its plant in Casablanca. The new activity involves sealing systems for the fuselages, engines and wings of the two aircraft families made by the US manufacturer.
Production of aircraft seals for the Boeing 737 MAX and 777X is to be transferred to the Midparc industrial zone, near Casablanca’s Mohammed V Airport. Swedish supplier Trelleborg is assigning the work to its Moroccan plant, inaugurated last June, reports aviation media outlet 50skyshades on November 10.
The parts serve several essential functions on the aircraft. Trelleborg will make seals for aircraft structures, engine nacelles and wings. Made from engineered polymers, these components must withstand mechanical stress, temperature fluctuations and conditions encountered in flight.
Gordon Roper, the group’s global head of aerospace operations, describes the transfer as a new step in developing its industrial network. Trelleborg aims to bring its manufacturing capabilities closer to its customers and strengthen the reliability of its supplies. In 2024, the company signed a memorandum of understanding with Boeing to deepen their cooperation.
Casablanca aerospace plant set to ramp up production
The Casablanca plant covers 5 000 square metres. Located in the Midparc free zone, it also includes a laboratory dedicated to materials testing and the development of new products. In its June 11 announcement of the inauguration, the group said production had already begun and forecast that the plant would reach full operational capacity within two years.
The aerospace facility extends Trelleborg’s industrial presence in Morocco. In 2021, the Swedish group opened its first unit in Kénitra, specializing in rubber components for the automotive industry. With Casablanca, it is now developing a separate activity, directly integrated into its global aerospace manufacturing chain.
To support the ramp-up, Trelleborg is working with the Institut des métiers de l’aéronautique (IMA) to train future employees. The Casablanca site is expected to create between 150 and 200 skilled jobs, particularly in manufacturing, inspection and industrial processes.
