Railway fastening systems are a key component of railway infrastructure, holding rails in place on sleepers with gauge, alignment, and stability. They resist lateral, vertical, and longitudinal loads to ensure stable and safe rail performance. The fastening system also reduces track vibration, accommodates rail thermal expansion, and mitigates noise, directly contributing to improved ride quality, extended infrastructure lifespan, and reduced maintenance costs.
The SFFST E2091TAV fastening system is particularly well adapted to concrete sleepers, offering superior performance on standard and high-speed rail tracks. Safe and long-lasting by design, E2091TAV reflects SFFST’s emphasis on state-of-the-art rail technology.
System Overview
Key Components and Functions
The following are part of the E2091TAV system:
- E-clip or W-type tension clamps for secure rail hold.
- Rail pads for vibration dampening and noise reduction.
- Baseplates for stability in load distribution.
- Insulating pads for electrical isolation between rail and sleeper。
- Bolts, nuts, and washers that provide overall structural integrity.
Together, all the components function to distribute dynamic loads, take up mechanical stress, and provide a long-term stable rail gauge.
Materials and Manufacturing
E2091TAV components are produced from:
- High-quality spring steel for fasteners and clamps.
- Rubber and polyurethane for elastic pads and insulators.
- Baseplates made of high-strength cast steel or cast iron for durability and load distribution.
SFFST employs cutting-edge manufacturing techniques, including automated rail clip lines and rubber vulcanization processes, to guarantee each component meets high standards of durability and performance.
Compatibility with Concrete Sleepers
E2091TAV can satisfy the standards of EN 13481-2:2022 and is comprehensively tested for compatibility with monobloc and twin-block concrete sleepers on ballast tracks. All systems are proof load tested (e.g., 60 kN per clamp) in accordance with EN 13481-2 to ensure long-term reliability without compromising sleeper integrity.
Core Design Principles
Prioritizing Safety and Durability
The E2091TAV system resists excessive load and long-term fatigue. Its structural members and clamps are dynamically tested to guarantee the stability and gauge of the system over its service life.
Reduction of Vibration and Noise
Elastic rail pads absorb dynamic loads from passing trains, reducing vibration and track noise. SFFST’s stringent manufacturing guarantees consistent elasticity as well as long-term performance under diverse environmental conditions.
Resistance to Environmental Stress
Metal components are coated to prevent corrosion, and elastic components are sealed out against moisture, UV, harsh temperature, and deicer chemicals. This makes E2091TAV appropriate for blended environments and railroad conditions globally.
Application Versatility
Conventional rail systems
The E2091TAV fastening system has also found effective applications in normal rail operation, such as passenger lines and freight networks. For instance, we supplied systems to the Fenghong and Jingshen Railway project, where heavy-haul condition resistance was of paramount importance.
High-speed rail networks
Our fastening solutions also cater to high-speed rail requirements. In 2017, E2091TAV systems were implemented on the Shangqiu-Hefei-Hangzhou High-Speed Rail, demonstrating excellent performance under high-speed dynamic loads.
Installation and Maintenance
Installation process overview
Installation is facilitated by standardized techniques. All test fastening systems shall be installed on the sleeper type for which they were designed. Each test fastening system shall be fitted in the track under equivalent conditions of formation, ballast support, curvature, gradient, and cant. Our staff assists with technical advice to ensure correct torque application and alignment during build.
Maintenance requirements and intervals
Owing to its robust build, the E2091TAV does not need much maintenance. Regular checks are aimed at clamp tension integrity and pad wear. The elastic components have extended lives due to quality materials and controlled processes of manufacturing.
Performance Standards and Certifications
Adherence to global railway standards
This European Standard was CEN adopted on 8th May 2022, providing assurance that SFFST’s E2091TAV meets EN 13481-2:2022 standards for concrete sleeper fastening systems. It assures customers of its worldwide fit.
Safety tests and field performance tests
Each fastening system in a test shall be installed in the track under comparable conditions of formation before test commencement. This stringent validation process includes mechanical stress testing, exposure to the environment, and simulation of long-term traffic.
Advantages of Using E2091TAV
Improved stability of the track
The tight gauge control of the system and efficient damping mechanism avoid rail displacement even in extreme dynamic loads. A stable holding force during the life of service is ensured by the spring clamps.
Long lifecycle
With corrosion-resistant materials, elastomeric fatigue life, and safe-locking devices, E2091TAV provides long lifecycle performance—minimizing downtime and maintenance effort.
Cost savings
Upfront investments in premium fastening systems such as E2091TAV pay rewards in long-term cost savings through less frequent replacement, lower maintenance labor requirements, and diminished interruption to operations.
Noise and Vibration Reduction
Elastic pads enhance passenger comfort and minimize rail wear.
Comparison with Other Systems
Unlike traditional spike-and-baseplate systems, E2091TAV does not normally require retightening to maintain clamp pressure under standard operational conditions. In comparison to rigid or low-quality systems, it features enhanced:
- Vibration isolation.
- Corrosion resistance.
- Adjustability between rail types—metro lines to heavy-haul freight.
Conclusion
The SFFST E2091TAV fastening system for concrete sleeper tracks provides a reliable, long-lasting, and high-performance solution. With improved spring clamps, elastic rail pads, and corrosion-resistant materials, it supports track stability, minimizes vibration and noise, and endures harsh environments. Suitable for traditional and high-speed rail tracks, E2091TAV reduces maintenance and long-term cost while improving ride quality and safety. For railway companies that need to rely on tested fastening technology, E2091TAV is an excellent investment in state-of-the-art railway infrastructure.
FAQ
Q: What is the E2091TAV fastening system used for?
A: The E2091TAV fastening system is designed for securing rails to concrete sleepers on both conventional and high-speed railway tracks. It ensures stable rail gauge, absorbs vibrations, reduces noise, and withstands heavy dynamic loads, contributing to track safety and long-term durability.
Q: What are the main components of the E2091TAV system?
A: The system includes E-clips or W-type tension clamps for rail holding, elastic rail pads for vibration and noise reduction, baseplates for load distribution, insulating pads for electrical isolation, and bolts, nuts, and washers for overall structural integrity.
Q: Can it be applied to slab track?
A: Though produced mainly for use on concrete sleepers in ballast track, SFFST also produces fastening systems for slab track through independent product lines.
Q: How can I buy E2091TAV?
A: Kindly email us at info@sffst.com or call/WhatsApp us on +86 15215826075. Our engineers will provide you with specifications and customization options.
