A rail pad is inserted in between the rail and baseplate or sleeper. Rail pad is introduced to the railway fastening system because of its resilience or viscoelasticity which can be implemented in the intervention of fatigue cracking of sleepers. The dynamic stress from the wheel or rail impact from both regular and irregular movements is attenuated.
GNEE RAIL specializes in producing rail fastening parts include Rail Pads. Keep the rail stable, to preclude and buffer impact, increase friction and reduce vibration, rail EVA pad lies between the rails and base plates. It can be made of HDPE, EVA, rubber, and EPDM materials. Main rail pads are made for E type rail fastening system and SKL type rail fastening system.
| 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) |
| 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 |
What items are included in the factory testing of rail pads?
Factory testing for rail pads involves checking their physical/mechanical properties (hardness, compression, tension, ageing), dynamic performance (load-deflection, vibration damping), electrical resistance, dimensions, and material composition (specific gravity, ash content), ensuring they meet rigorous railway standards for track stability, noise reduction, and longevity under load.
How does an elastic rail pad protect railway rails?
Elastic rail pads protect railway rails by acting as shock absorbers, cushioning impacts and vibrations from passing trains, which distributes loads over a wider area, reduces stress, prevents wear and tear (like abrasion and crushing) on the rail base and sleepers, lessens noise, and extends the overall lifespan of the track structure. They provide crucial elasticity, isolating the rail from the sleeper to absorb dynamic forces and maintain good contact.
How They Work:
Placement: The pad sits between the steel rail and the sleeper (or tie plate).
Compliance: They are designed with specific stiffness, often lower initially, allowing for significant deformation under normal loads to maintain contact.
Dynamic Response: When a train passes, the pad compresses, absorbing the energy, and then expands, acting like a spring to cushion the rail, improving ride comfort and protecting the track.
GNEE RAIL provides exceptional elastic rail pads of various types for high-speed railways, normal-speed railways, and cranes. Especially the rail pads made of rubber, EVA, TPEE, and HDPE are very popular with customers. Our railway rubber pads fit the rails such as UIC54, UIC60, BS80lbs, BS100lbs, etc. We have more than 130set of machines in our production lines which can reach an annual production capacity of up to 2000, 000 pieces of rail pads. We offer a wide range of rail pads and other track materials at competitive prices.
