Safety in rail systems depends directly on the performance of critical components. Sealing elements used in braking systems are among these critical components. Their performance is important, and their availability is also a decisive factor for operational continuity.
The need identified in the hydromechanical brake systems of Alstom TFS trams operated by Gaziulaş was shaped by both performance and time requirements. Different applications and trials showed that standard product solutions could not provide the required technical performance. Long lead times for overseas supplies also made maintenance processes more difficult.
Under these conditions, the need was no longer limited to product supply. The customer required an approach that could provide a fast response and deliver a technically accurate solution.
As Kastaş, we approached the project with a comprehensive engineering assessment based on the shared technical data and operating conditions. We developed piston seals, a rod seal, and static seal solutions specifically for the brake caliper system. We selected POM and HNBR for the material structure. We increased mechanical durability through design revisions during the development process. We completed the sampling process and validated the products under field conditions. We then carried out serial production.
The elimination of delays caused by long lead times played an important role in the success of the project together with the solution-oriented engineering approach. The technical solution was not the only decisive factor in the project. Delivery speed also played a critical role.
The project continues with annual serial production in line with customer requirements.
This case shows that the value of sealing solutions is not limited to product performance. Speed, engineering expertise, and the right application deliver results that meet customer needs when they are evaluated together.
With SmartSeal Custom-made Sealing Solutions, Kastaş offers its customers a fast, customized, and reliable solution model.