 As a continuation of the so-called 5L train, Hörmann Vehicle Engineering has developed a lightweight modular chassis on behalf of SBB Cargo, which is suitable for various transport tasks and superstructures. It consists of a lattice girder structure in the center segment and load-optimized head sections. At 5.5 t in its current version, it is considerably lighter than a chassis weighing on average between 8 and 9 t in conventional design. The entire carrying wagon thus weighs 20 % less than conventional wagons. With this new development, increased payloads of up to 75 t can now be transported. For the development, the company transferred approaches from the lightweight structural design of commercial vehicles to railway applications. As part of the modular structure, the vehicle length can be adapted between the head sections by means of middle sections of different lengths. © Hörmann Gruppe