What are the applications of Rubber Rail Pads?
Rubber rail pads serve as critical components in track engineering with applications spanning all domains of modern rail transit.
| 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 |
In high-speed railway systems, pads with precisely controlled stiffness coefficients of 70-90 kN/mm distribute wheel-rail impact loads to concrete sleepers, effectively reducing ballast vibration acceleration by 40% while maintaining track smoothness indicators within 2mm at speeds exceeding 300 km/h. Urban rail transit networks leverage the vibration damping and noise reduction properties of pads, where their unique damping molecular structure absorbs railhead vibration energy, reducing noise levels in subway tunnels by 12-15 decibels while containing secondary structure noise transmitted to adjacent buildings below 35 dB.
The heavy-haul railway sector fully utilizes the fatigue resistance of rubber pads. Under operating conditions with axle loads exceeding 30 tons, specially formulated pads withstand over 5 million dynamic load cycles while retaining elasticity, extending rail corrugation formation cycles by more than three times. In electrified sections, the stable volume resistivity above 10^6 Ω·m provides reliable insulation for track circuits, preventing signal transmission attenuation. Particularly on steel bridge sections, pads combined with elastic baseplates utilize dual damping mechanisms to reduce bridge structure noise from 110 dB to below 75 dB.
Specialized pads for switch areas feature reinforced edges to withstand high-frequency impacts from switch machines, with grooved drainage designs preventing water accumulation during inclement weather. In metro depot maintenance facilities, anti-static formulated pads prevent electrostatic accumulation to ensure operational safety.
As a professional rail fastener manufacturer, GNEE RAIL can produce various types of rubber rail pads with different materials, such as natural rubber, EVA, HDPE and so on. Our EVA/HDPE/rubber rail pads are with high elasticity, applying to types for rails such as rail UIC54, UIC60, BS80lbs,BS100lbs, and sizes as ordered. The pads can be customized with or without grooves, in various possible designs, depending on customers' requirements.
