The rail pad, also known as bottom plate, is an elastic polyurethane pad assembled between the rails and sleeper to protect the top of the sleeper from wear and impact. The initial stiffness of the rail pad is not so high that the deformation of the rails under the load of the spring is very large. This mechanism ensures that the rail pad moves as close as possible to realize close contact with the track.
| Raw Material | Rubber, EVA, TPEE, HDPE |
| Standard | UIC, AREMA, TB/T2626-95 |
| Application | 43kg/m, 50kg/m, 60kg/m, 75kg/m,115RE, UIC54, UIC60, S49 |
| Model number | 43-7-7, 43-10-7, 50-7-9, 50-10-9, 60-10-17, 60-12-17 |
| Operating temperature | -50~70 degrees |
| Certificate | MSDS, ROHS, REACH |
| Notes | They should be stored in a clean, ventilated place. Don't be in direct sunlight, and keep away from the heat source and chemical reagent. Don't touch the oil, organic solvent, and other chemicals. Banned exposure. |
What is a elastic rail pad used for?
Elastic rail pads are crucial components placed between the steel rail and the sleeper (tie) to absorb shock, reduce vibration and noise, distribute wheel loads, protect the sleeper from wear, and provide electrical insulation, ultimately increasing track life, improving passenger comfort, and ensuring track stability, especially for high-speed and heavy-haul railways.
What is the function of a railway pad?
- Shock & Vibration Dampening: Made from elastic materials (like polyurethane), they act as a cushion, absorbing impact from passing trains and reducing high-frequency vibrations that can damage the track structure.
- Load Distribution: They spread the concentrated weight of the train over a larger surface area of the sleeper, preventing load concentration and fatigue stress on the concrete or wood tie.
- Wear Protection: By cushioning the contact between the rail and the sleeper, they prevent abrasion and crushing, extending the life of both components.
- Noise Reduction: The damping effect significantly lowers the noise generated by trains, improving the environment for nearby communities.
- Electrical Insulation: They provide a necessary electrical break in the track, essential for signaling systems, preventing stray currents from interfering with track circuits.
- Improved Comfort: By minimizing vibrations, they lead to a smoother, more comfortable ride for passengers.
How Railroad Pad Work?
Rail pads are designed with specific stiffness characteristics; they start with low stiffness to maintain close contact with the rail despite minor vertical movements, then provide higher stiffness under load to prevent excessive rail movement, ensuring system stability.
GNEE RAIL equips 130sets machines' rail pad production line, for processing, injection, refining rubber, sulfuration , moulding and inspection etc. We have our own rail pad development engineers, designing, producing and inspecting, our annual production capacity reaching up to 2000, 000 pieces. What's more, rail pads for high-peed rail are our featured products, including both the elastic rubber plates and height adjustment pads.