Modern Dellner Articulation Joint – Enhanced Safety and Passenger Comfort
In today’s rail transport, multi-unit vehicles have become the standard across urban, regional and long-distance traffic.
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There are two principal designs: independent wagons, connected by intermediate couplers, and vehicles that use Jacobs bogies with inter-wagon articulation joints to connect the units. The wagons supported by Jacobs bogies are mechanically connected by joints that transmit longitudinal, vertical, and lateral forces, compensating for movements in bends and when traveling over uneven tracks. The use of Jacobs bogies with articulation joints improves vehicle stability and passenger comfort.
Dellner Technology
Dellner, a global leader in Train Connection Systems, supplies articulation joints in two versions:
without an integrated energy absorption system,
with our patented Crash Energy Management (CEM) technology based on Cold-Drawn Bar elements.
Energy-Absorbing Articulation Joints
Dellner’s Cold Drawn Bars (CDB) technology is an innovative solution for crash energy absorption. By using these special screws in the articulation joints, the system effectively absorbs energy during a collision, significantly enhancing passenger safety and protecting the vehicle structure. The compact design of the articulation joint – reducing both size and weight – allows for greater adaptability to the available space within the vehicle frame. Its lighter construction also translates into energy savings during the operation of the entire vehicle.
© Dellner
© Dellner
Key Benefits
Dellner articulation joints offer a range of advantages for rolling stock manufacturers and rail operators:
. Flexible connection of the units – enabling smooth relative movement of wagons on bends, gradients and during track transitions.
. Reliable force transmission – the design guarantees reliable transfer of loads, increasing the stability of the entire train.
. Energy efficiency – the reduced weight of the joints reduces the vehicle’s weight, which translates into lower energy consumption.
Dellner articulation joints are a crucial component for rail vehicles with Jacobs bogies, providing flexible coupling and effective force transmission during operation. Our innovative Cold Drawn Bars technology makes the joints safer by effectively absorbing energy in the event of a collision, protecting passengers and the vehicle structure. The compact and lightweight design of Dellner articulation joints translates into greater adaptability, energy savings and travel comfort.
Comprehensiveness and Integration – Dellner’s Advantages
Dellner distinguishes itself not only in terms of modern solutions but also our comprehensive approach to implementing projects with integrated rail vehicle connection systems. This means that our customers have a single, experienced partner responsible for the entire project, ensuring consistency and time savings. Furthermore, Dellner provides full engineering support at every stage from advanced simulations and analyses to the design of solutions precisely tailored to individual needs.
We invite you to visit the Dellner stand at TRAKO 2025, where you can learn more about our articulation joint and discuss further solutions from our portfolio with our team. Hall B, Stand 21.
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