Description
Functions of Rail Pads:
- Shock and Vibration Dampening: Rail pads reduce the impact of shocks and vibrations from train movements, prolonging track life and minimizing noise.
- Load Distribution: They distribute train weight evenly across the sleeper, preventing concentrated pressure points.
- Prevention of Fatigue Stresses: Rail pads cushion the sleeper, avoiding direct rail contact that causes stress and damage.
- Centering of Loads: They ensure even load distribution for track stability and durability.
- Sealing and Protection: Rail pads seal and protect against debris, moisture, and corrosion.
- Noise and Vibration Reduction: They reduce noise and vibration, enhancing comfort and safety.
Material Options for Rail Pads:
- Elastic Rubber Pads: Offer flexibility, durability, and excellent shock absorption for various rail systems.
- HDPE (High-Density Polyethylene) Pads: Durable, resistant to wear and environmental factors, ideal for harsh conditions.
- Polyethylene Pads: Flexible and impact-resistant, suitable for standard and light rail systems.
Design Features:
- Stiffness Control: Low initial stiffness ensures consistent shock absorption and load distribution.
- Customizable Designs: Available in various shapes and materials to meet specific rail system needs.
Applications of Rail Pads:
- Heavy Freight Rail: Essential for shock absorption and load distribution in heavy-duty applications.
- High-Speed Rail: Reduce vibrations and ensure smooth operation in high-stress environments.
- Light Rail and Tram Systems: Minimize noise and vibration in urban areas.
- Urban and Residential Areas: Reduce noise pollution and enhance quality of life near rail tracks.
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 materials of HDPE/EVA/Rubber, offering excellent durability and performance.
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 |
