Stog was founded in Munich in 1976 by Arnulf Stog. The company designs and manufactures expansion joint constructions and joint tapes at its facility in Waltrop, near Dortmund. In addition to its core expertise in expansion joints, Stog has developed specialised products, including compensation plates and crossbeams. These components enable efficient, reliable bridging solutions, particularly in railway applications.
The compensation plates are designed in accordance with DB guideline 804.5202 and are certified by Germany’s Federal Railway Authority (EBA). They ensure compliance with maximum rail support spacing requirements (e.g., 650 mm), reduce uplift forces at rail support points, and facilitate precise adjustments for ballastless track bridge setups.
The cross beams for provisional bridges feature hydraulically adjustable vertical bearings, allowing the provisional structures to be raised or lowered by +50 mm / -20 mm. This capability enables accurate height adjustment during installation and use.
Building on its established reputation in railway bridge expansion joints—where Stog remains Germany’s leading manufacturer— these products reflect the company’s ongoing commitment to innovative, low-maintenance solutions that align with the full service life of bridge structures.
Stog products enjoy strong international demand, with installations in neighbouring countries such as Austria, Switzerland, and the Netherlands, as well as in the United Kingdom, the United States, Israel, and South Korea.
Enhance Track Performance with Precision Engineered Products
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Certified by Germany’s Federal Railway Authority
We’re proud to announce that our products are officially certified by Germany’s Federal Railway Authority! This ensures they meet the high standards set by DB guideline 804.5202 for ballastless tracks. With our certification, you can trust that you’re investing in quality and reliability for your railway projects.
Engineered for Structural Stability
Our compensation plates are engineered to not only uphold rail support distances but also to effectively absorb mechanical stresses. This innovative design significantly boosts track durability and safety, ensuring a smoother and more reliable journey for everyone.
Trusted by Industry Leaders
Our innovative range of products has earned the trust of top railway infrastructure providers, effectively managing movement and significantly reducing lifting forces. With our solutions, you can expect enhanced efficiency and reliability in every operation.