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voestalpine Railway Systems

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NRG Joint

Immediately deliverable stock Read more about the configurator

NRG joints


The NRG Joint is the latest generation of insulated rail joint. Insulated rail joint are part of the train detection system and are used to divide the track into sections, or track sections. These sections are connected to the central protection system. ES splices are part of the rail. It therefore has the function of a signal conductor in addition to carrying and running train traffic.

“Until 2016, the vulnerability of insulated joints (ES joints) to wear was one of the main causes of failures in the railway infrastructure. Those days are gone thanks to the introduction of the NRG joint.”

Sustainability as top priority

A radical redesign and the development of several new components have resulted in a model with an unprecedentedly long service life, significantly reducing infrastructure failures. Since 2015, more than 17,000 NRG insulated joints have been supplied in the Netherlands.
Want to know more about the placement and removal of the NRG Joint?

The key features at a glance:

  • Low life cycle costs
  • Protected, insulating, and water-repellent coating
  • Optimal insulation and no unwanted electrical conduction
  • Cold Hole Expansion
  • Compatible with all major railway constructions
  • Withstands prolonged, heavy forces
  • Tested to the highest standards of all known railway operators
  • Permanently pre-tensioned hook/pin construction
  • Resistant to temperatures between -20 °C to +60 °C

NRG Joint configurator

Using the NRG insulated joint configurator, customers can assemble their ideal NRG insulated joint themselves. The advantage is that customers have direct influence over the final product, allowing their specific requirements to be reflected in the design. Through a visual configurator, the available options are clearly presented. This enables customers to gain a better understanding of the possibilities offered by an NRG insulated joint and configure it according to their own preferences and operational needs.
Go directly to the configurator

Product Manager

Martijn van de Beek

martijn.vandebeek@voestalpine.com