Enhance Rail System Efficiency with Our Advanced Rail Fasteners and Rubber Pads
Railroad Rubber pad functions
A rail rubber pad is essential in reducing shock and vibration in a rail system. The pad laid under the rail to ensure:
1. Load distribution over a larger surface
2. Elimination of load concentration and the resultant fatigue stresses
3. Centering of loads on the supporting element
4. Absorption of uneven contact surfaces between rail and support
5. Reduction of noise and vibration
6. Sealing between the bottom of the rail and the top of the support
7. Reduction of wear of the rail and its support
Rail pad materials
We have developed a range of high-performance elastic rail pads for stiffness requirements and various application areas-from trams through standard gauge railways to heavy haul lines, especially those for E-type rail fastening systems and SKL type rail fastening systems with material of HDPE/EVA/Rubber, with following properties respectively.
| HDPE | |||
| 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) |
| Rubber | ||
| 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 |
Rubber pads can act as a thermal insulator between the rail and the sleeper, helping to mitigate the effects of temperature-induced expansion and contraction of the rail. By reducing the direct contact between the rail and the sleeper, rubber rail pads can extend the service life of both components by minimizing wear and fatigue.Rubber rail pads are installed on the upper surface of the concrete sleeper, where the rail base rests. They are positioned to align with the rail foot and are typically fastened using the rail fastening system. Different types of rubber materials can be used for rail pads, each with specific properties related to elasticity, durability, and resistance to environmental conditions. Rubber rail pads come in various sizes and designs to match different rail profiles, sleeper dimensions, and track configurations.
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