The new M-Generation of Vossloh tension clamps withstands the toughest loads

Significantly increasing passenger numbers and a consistent shift of freight traffic to environmen-tally friendly rail will inevitably lead to acute strains on the rail infrastructure. In order to make the rail infrastructure as a whole more durable and resistant to these increasing demands, Vossloh is presenting its new M-Generation tension clamps at InnoTrans 2022.

With the development of the M-Generation, Vossloh is presenting rail customers worldwide with two major innovations that are not to be underestimated: Firstly, guaranteed safety on all tracks despite increasing demands and greater load levels, and secondly, an improved carbon footprint over the entire service life.

New M9 tension clamp in European track with extreme performance requirements

Compact in design, the outwardly curved spring arms are the most striking feature of the new tension clamps. Their geometry, which resembles an "M" in cursive, provides both a larger contact area to the rail base and reduced contact stress. Increased fatigue strengths are achieved by accommodating the three-dimensional stress directions in a unique geometry. The high natural frequency – two to three times higher than previous tension clamps in the respective application area – strengthens the robustness of the new type of tension clamps against external influences. This lowers life cycle costs on a comparative basis and allows the use of more elastic rail fastening systems to further reduce vibrations. This is because, thanks to their excellent load and deflection characteristics, M tension clamps maintain rail stability over a long period of time, even under extreme conditions.

Vossloh has also enhanced the material used. A micro-steel alloy optimizes the tried-and-tested properties. A low-stress bending process and an improved hardening process are used in production, so that CO2 emissions can be significantly reduced in conjunction with the compact product design. Many values for the M-Generation are still based on laboratory results and simulations; however, the feedback after the first operational trials is consistently positive and promising.

Ready for use in all areas of application, the following three M-clamp variants are currently available, whereby one M tension clamp combines the properties of several previous clamps:

  • The M3 is available as an alternative to the Skl 15 in the high-speed segment. Already in use on high-speed lines in China, it has also been installed on the German network for test purposes since 2021.
  • The M7 is recommended as an alternative to the Skl 1, Skl 14 and Skl 21 tension clamps in the mainline, metro and high-speed ballast track segments.
  • In addition, the M9 is suitable for lines with extreme requirements, such as very tight curve radii or with heavy freight traffic, and will replace the Skl 14 R, Skl 30 and Skl 40 tension clamps in the long term.

Vossloh is once again setting standards for safe and green rail transport with the new M-generation for our rail fastening systems. Visit us at the Vossloh booth 975 in hall 26. Beforehand, you can find informative details in the Vossloh Topic Lounge , in the Advanced Infrastructure section or at InnoTrans 2022 | Vossloh AG .

Vossloh Media Team
Phone: (+49-2392) 52-608
Email: tradepress@vossloh.com

Vossloh is a globally active technology Group dedicated for over 135 years to quality, safety, reliability, innovation and a focus on the customer. Vossloh’s comprehensive range of track-related products and services make the company a leader in the global market in this area. Vossloh provides a uniquely wide range of services: rail fastening systems, concrete ties, switch systems and crossings as well as innovative and increasingly digital-based services for the entire lifecycle of rails and switches. Vossloh uses its extensive understanding of rail infrastructure to meet the key customer need of track network availability.
Vossloh products are in use in more than 100 countries. With close to 80 Group companies in around 30 countries and over 35 production sites, Vossloh is a global company with a local presence. Vossloh is committed to sustainable governance and climate protection and makes an important contribution to sustainable passenger and freight mobility with its products and services.
The Group activities are organized into the three divisions of Core Components, Customized Modules and Lifecycle Solutions. In the 2021 fiscal year, Vossloh achieved sales of €942.8 million with approximately 3,600 employees.