Author: Mariateresa Pirozzi, Marketing Specialist, Leister Technologies AG, Italy
Aero Sekur is a company based in Aprilia, Italy, known for its safety systems for aircraft and ground vehicles, and supplies major original equipment manufacturers in the aerospace industry. Aero Sekur manufactures helicopter emergency flotation systems, inflatable life rafts, and self-sealing and crash-proof fuel storage systems and components for these companies.
The instability of such systems and the situations in which they are used illustrate the importance of their quality of workmanship. After all, this ensures the absolute safety and reliability of the products.
Leakproofness and Particularly High Tightness Required
Over the years, Aero Sekur has perfected its production techniques. This is because its focus is on developing completely leak-proof systems. Owing to factors of weight and inflation time, emergency flotation systems and life rafts are filled with helium instead of air. And due to its smaller molecules, helium requires particularly high impermeability.
Welding Instead of Gluing
In this context, Aero Sekur has gradually reduced its use of adhesives and focuses on welding the technical textiles that constitute the products. This is because welding ensures a longer service life for products filled with helium gas, especially under aggressive conditions, such as saline environments with large temperature differences and high humidity.
Opting for SEAMTEK 900 AT from Leister
“In the beginning, we had a hot welding machine that was suitable for thick materials. However, for lighter fabrics, which we often use for aerospace products due to the strict weight requirements, this machine did not deliver satisfactory results,” explain Francesco Giannini and Andrea Bianchi, technical and commercial directors at Aero Sekur, “so we searched the market for a better alternative.”
After careful evaluation and testing, the responsible product developers opted for the SEAMTEK 900 AT welding machine from Leister.