Railway rubber pads and EVA pads are crucial damping components in track systems, each with distinct performance characteristics and applications. Rubber pads are renowned for their excellent elasticity and durability, effectively absorbing train impact forces and reducing wheel-rail noise. When used in conjunction with fasteners such as clips, bolts, and nuts, they provide stable fastening pressure. In contrast, EVA pads are lighter in weight and offer superior chemical corrosion resistance, making them particularly suitable for humid or acidic/alkaline environments, though their aging resistance is slightly inferior to rubber pads.
Rubber 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 |
EVA Rail Pad:
| 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) |
In railway fastening systems, pads must work in coordination with components like clips, rail spikes, gauge plates, and insulated gauge blocks. For instance, rubber pads paired with elastic rail clips can significantly enhance the longitudinal resistance of the fastening system, while EVA pads are often combined with nylon sleeves or screw spikes for lightweight rail projects where weight sensitivity is a concern. Additionally, GNEE RAIL's railway fastener product line includes high-strength bolts and nuts, baseplates, embedded rail seats, and more, comprehensively meeting the technical requirements of various track systems.
Both rubber and EVA pads from GNEE RAIL are manufactured in strict compliance with international standards, ensuring compatibility with sleepers and rails. If you require customized fastening solutions, GNEE's professional team provides one-stop technical support, from pads and clips to spikes and other critical components.
