What is the working principle of Rubber Rail Pads?
Rubber rail pads work by acting as a cushion between the steel rail and the sleeper, absorbing and dissipating the shock and vibration from passing trains. This cushioning protects the railroad infrastructure, such as concrete sleepers, from impact damage and reduces stress on the tracks. Additionally, they help to evenly distribute the load and provide electrical insulation to sensitive systems.
| Rubber Rail Pad | ||
| Technical Parameter | Unit | Value |
| Stiffness | KN | 90-130 |
| Hardness Shore A | ℃ | 72-80 degree |
| Electronic Resistance | Ω | ≥ 106 |
| Tensile Strength before Aging | Mpa | ≥12.5 |
| Elongation before Aging | % | ≥250 |
How they function
- Vibration and shock absorption: The elasticity of the rubber material absorbs the impact and vibration generated by the train, preventing it from being directly transferred to the sleepers and ballast.
- Load distribution: The pads provide a larger contact area, which helps to spread the pressure of the train's weight more evenly across the sleeper. This reduces stress concentrations and helps prevent fatigue cracking in the sleepers.
- Wear and fatigue reduction: By absorbing impact and distributing load, the pads protect the concrete sleepers from damage, extending the overall lifespan of the track system.
- Electrical insulation: The pads can be designed to provide electrical insulation, which is crucial for protecting signaling and communication systems from electrical interference.
- Noise reduction: The dampening effect of the pads also helps to reduce the noise level produced by the train's movement.
What good natures does rail pad have?
- Reduce the noise that trains hitting on the rails and improve the comfort of the passengers
- The use of rail pad can decrease the abrasion of rails and prolong the service life of rail track
- Centering of loads on the supporting element
- Absorption of uneven contact surfaces between rail and support
- Reduction of noise and vibration
As a professional rail fastener manufacturer, GNEE RAIL can produce various types of rubber rail pads with different materials, such as natural rubber, EVA, HDPE and so on. Our EVA/HDPE/rubber rail pads are with high elasticity, applying to types for rails such as rail UIC54, UIC60, BS80lbs,BS100lbs, and sizes as ordered. The pads can be customized with or without grooves, in various possible designs, depending on customers' requirements.
