Digital Automatic Couplers: Dellner’s solution to coupling automation

Rail is responsible for less than one per cent of transport-related greenhouse gas emissions in the EU, hence it is the most sustainable forms of passenger and freight traffic. As part of the European Green Deal, in 2014, the EU established a public-legal partnership – Shift2Rail. One of its objective is to reduce the lifecycle costs of rail transport to increase its competitiveness with road transport, to double the amount of rolling stock and to increase its reliability and punctuality. One of the activities undertaken is the standardisation and digitalisation of couplers in freight rolling stock. The aim is to double rail freight transport and reduce carbon dioxide emissions form road transportation by 110 million tonnes. Replacing screw couplings will help rail freight to become more competitive with road transport.

Dellner is one of four companies (next to Caf, Voith and Wabtec) that were invited to design and deliver new DACs. Dellner’s solution is derailment optimised so it provides increased safety during operations.

The coupling of freight trains is an aspect of the rail industry that has hardly changed in decades. Employees still need to manually couple trains, walking the length of the train so that each individual wagon can be connected and checked.

Digital automatic coupling will provide many benefits for the rail sector. Some of them are

  • the increase of productivity, efficiency and service quality;
  • the enhancement of competitiveness of the rail freight sector;
  • the shifting of more freight traffic to rail.

Dellner DAC coupler together with the solution of other suppliers are currently being tested in Germany and Sweden in various weather conditions. The tests will take apx. 10-18 months following which the Shift2Rail will decide on the coupling head and other additional functionalities.

The Shift2Rail programme assumes the installation of approximately one million automatic couplers between 2025-2029 on new and old freight fleets. The huge number of DAC couplers that will need to be replaced in a very short time (within 5 years) will require smart sourcing and improved logistics concepts. Dellner is already working on optimising the costs of this project.

As a company with an established position as a reliable supplier and business partner that has been connecting trains in a reliable and safe way for 80 years, Dellner contributes with great commitment to the development of rail freight in Europe.

Some questions this webinar will answer:

  • Where are the DAC developments right now?
  • What are the differences between screw coupling and Digital Automatic Coupling?
  • How to achieve the installation of approximately one million automatic couplers between 2025-2029?
  • What are the benefits of DAC, why is it useful to use DAC?
  • What tasks remain to be sold?

Who we recommend:

  • Rail freight companies – especially considering that DAC is a requirement for them from 2025 onwards!
  • Companies interested in rail freight
  • Vehicle repairers
  • Railway experts, railway technicians
  • For those interested in modern railway solutions

Opening speech:

Zoltán Dunai, Country Manager, Stadler Rail Group.

The language of the webinar is English.


Participation in the webinar is free, but pre-registration is required until June 7.

The event is finished.


2021. jún. 10.


10:00 - 12:00

Részvételi díj

Participation in the webinar is free, but pre-registration is required until June 7.


Online event
HUNGRAIL Magyar Vasúti Egyesület


HUNGRAIL Magyar Vasúti Egyesület
+36 30 316 2496

Other Organizers

Dellner Couplers AB
Dellner Couplers AB
+46 23 76 54 00


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