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Insulated rail joints (IRJs) are a central element for train localisation within signalling technology. Our portfolio of IRJs is engineered to meet the needs of rail networks worldwide, combining proven technology with innovative material science. A wide range of solutions for all applications – proven in use for decades.

Explore Our Portfolio of Insulated Rail Joints

non-glued insulated rail joint made of steel in the track

Kits for Installation of Glued IRJs

Our kits include all high-quality components for the installation of glued IRJs on-site – ready for use and designed to withstand maximum mechanical forces.

Explore glued IRJ kits

 

rail with factory assembled insulated rail joint made of steel

Rail with Factory-Assembled IRJ

Delivered as a rail with a factory-assembled IRJ, which guarantees the highest level of precision and quality control. Installed in track with two Thermit® welds, it is the ideal solution for high-traffic lines and tracks with high mechanical forces.

See factory-assembled IRJ

Non-glued insulated rail joint made of GFRP in the track

Kits for Installation of Dry IRJs

Lightweight, fast, and easy to handle – our joints reduce installation time significantly, without the use of any glue. This not only simplifies the installation itself, but also makes transport and storage much easier: no hazardous goods restrictions, always available. All while delivering full mechanical strength and high insulation performance.

See dry IRJs

repairing of an insulating end post

Repair Kit for Insulating End Posts

A damaged end post can cause a false signal, resulting in the track section being reported as occupied. Our repair kit provides a quick, reliable, and cost-effective solution to restore insulation, keeping railways operational with minimal disruption.

See IRJ Repair Kit

Why Insulated Rail Joints from Goldschmidt?

The Right Solution for Every Application

Whether standard mainline, heavy haul, metro, or temporary use – our broad portfolio covers every requirement. From proven glued IRJs to innovative dry IRJs, from on-site installation kits to factory-assembled rail joints: We offer IRJ solutions precisely engineered to meet your requirements – supported by our continuous commitment to research, development, and product innovation.

Your Specialist for Insulated Rail Joints – Worldwide

Installation of an insulating joint made of stelle with Isomor mortar

Since 1970, Goldschmidt has been developing IRJ solutions tailored to the most demanding track environments. More than 200,000 installations across the globe. Homologated by leading railway authorities, and manufactured in full compliance with EN 16843 – supported locally, delivered globally.

Available Where You Need It – When You Need It

repairing of an insulating end post

Consistent delivery performance and first-class quality always ensure your operational readiness. Our IRJ kits are stocked locally across the globe, minimising lead times and ensuring maximum track availability.

Explore Products from Our IRJ Portfolio

  • Non-glued insulated rail joint made of GFRP in the track

    IRJ DCL

    The installation of the IRJ DCL in track is quick and easy thanks to the waiver of the glue. The low weight of the kit minimises workload and simplifies handling. This…

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  • non-glued insulated rail joint made of steel in the track

    IRJ DMF

    The installation of the IRJ DMF in track is quick and easy thanks to the waiver of the glue. The robust construction of this insulated rail joint offers excellent…

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  • Installation of an insulating joint made of stelle with Isomor mortar

    IRJ MT

    The IRJ MT is quickly installed in track with Isomor mortar. Train operation can restart just 25 minutes after installation. At the same time, it offers excellent…

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  • kit for insulated rail joints made of steel with two-component glue

    IRJ ETW 2

    The IRJ ETW 2 is installed in track with a two-component glue. It is designed for the highest loads and is often used in high-traffic areas. Successfully used…

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  • rail with factory assembled insulated rail joint made of steel

    IRJ ETW 1

    The IRJ ETW 1 is precisely installed on a rail in our factory with a high-strength two-component glue, ensuring maximum stability and durability. The installation of…

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  • repairing of an insulating end post

    IRJ Repair Kit

    The IRJ Repair Kit contains all components for the temporary repair of damaged end posts. The repair takes less than 30 minutes. Train operation can restart just 20…

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