What are the advantages and disadvantages of Rubber Rail Pads?
The core advantages of rubber rail pads lie in their exceptional elasticity and damping characteristics. They effectively absorb 30%-40% of impact energy, reduce track vibration noise by 8-15 decibels, and significantly enhance passenger comfort.
| 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 |
With their high elastic modulus (stiffness typically maintained at 90-130 kN/mm), they ensure uniform load distribution while preventing stress concentration cracks in concrete sleepers. Regarding electrical insulation, rubber naturally provides resistance exceeding 10^6 Ω, perfectly meeting track circuit signaling requirements. Additionally, it maintains elastic stability across extreme temperatures from -50°C to 70°C, with a service life reaching 12-15 years.
However, rubber pads have inherent limitations. Prolonged UV exposure accelerates material aging, and they are prone to swelling deformation in oily environments. Compared to engineering plastic pads, their initial procurement cost is about 25% higher, and long-term compression of the bearing surface may cause permanent deformation of 2-3 mm. Under high-frequency impacts in heavy-haul railways, fatigue in rubber molecular chains can lead to stiffness attenuation, necessitating regular inspection and maintenance.
GNEE RAIL utilizes nano-modification technology to optimize the rubber molecular structure, improving product aging resistance by 50% and controlling compression set within 1.5 mm. We supply enhanced rubber pads that have passed 3 million fatigue test cycles, capable of meeting the most demanding operational requirements.
GNEE RAIL offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Rail Screw Spike, Plastic Dowel, High Tensile Track Bolt with Nut, Rail Base(Tie) Plate, Rail Fish Plate, Railway Shoulder(Insert), Fish Bolt, Railroad Rubber and EVA Pad, etc. Samples and drawings provided by customer, we will manufacture qualified products accordingly.
Click here to obtain the detailed product catalog of GNEE RAIL.
