What are the benefits of using Rail Pads for railway tracks?
Railway pads always play a key role in rail fastener system. It's a bedding device between the rail track and the railway sleeper (or railroad tie), which ensures the railway safely and stably operates by providing cushion and support.
The application of rubber rail pads brings multiple core benefits to railway track systems. Their elastic characteristics effectively mitigate impacts and vibrations during train operation, reducing dynamic loads transferred to sleepers and ballast, thereby extending the service life of track structures. The load distribution function of the pads disperses wheel-rail contact pressure over larger areas, preventing localized stress damage on concrete sleeper surfaces. In electrified lines, the insulation properties of the pads ensure stable track circuit signal transmission, guaranteeing reliable operation of train control systems.
The vibration damping effect of the pads significantly reduces track noise pollution, improving environmental comfort along the line. Their sealed design blocks moisture and contaminant erosion, delaying sleeper material deterioration. Specially formulated rubber maintains pad performance stability under extreme temperatures, meeting elasticity requirements in cold climates while resisting aging in high-temperature environments. The elastic deformation capacity of the pads also compensates for rail thermal expansion and contraction, maintaining constant fastening system pressure.
A range of high-performance elastic rail pads have been developed for stiffness requirements and various application areas-from trams through standard gauge railways to heavy haul lines, this especially suitable for E-type rail fastening systems and SKL-type rail fastening system with material of HDPE/EVA/Rubber, the following parameters for reference.
| 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 |
| HDPE Rail Pad | |||
| Technical Parameter | Unit | Technical Requirement | Value |
| Density | g/cm3 | 0.95-0.98 | 0.95 |
| Tensile Strength | Mpa | ≥19 | 19 |
| Elongation | % | >80 | 150 |
| Melting Point | ℃ | 170-190 | 190 |
| Insulation Resistance | Ω | ≥1×1010 | 3.5 ×1010 |
| Hardness | A | ≥98 | 98(A) |
| EVA: Polyethylene 80%, Vinyl Acetate 20%. | |||
| Technical Parameter | Unit | Technical Requirement | Value |
| Density | g/cm3 | 0.95-0.98 | 0.95 |
| Tensile Strength | Mpa | ≥15 | 16 |
| Elongation | % | >500 | 550 |
| Melting Point | ℃ | 170-190 | 170 |
| Insulation Resistance | Ω | ≥1×1010 | 5.0 ×1010 |
| Hardness | A | ≥90 | 92(A) |
GNEE RAIL supplies comprehensively compatible rubber rail pad products. We can recommend optimal solutions based on specific project requirements, supported by professional installation guidance and after-sales assistance.
