What are the advantages of EVA railway pads?
EVA railway pads offer excellent vibration/noise reduction, superior shock absorption, and protect concrete sleepers from impact, while also providing electrical insulation, wear resistance, and good weather durability, making them ideal for urban light rail and lower-speed lines as a cost-effective solution for track stability and comfort.
| 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) |
Key Advantages:
- Vibration & Noise Damping: Effectively isolates rail-to-sleeper vibrations, significantly reducing noise and improving ride comfort, crucial for urban environments.
- Shock Absorption: Cushions strong impacts from passing trains, protecting concrete sleepers from fatigue cracking and loosening fasteners.
- Wear & Abrasion Prevention: Reduces direct friction, preventing the rail foot from crushing or wearing into the sleeper.
- Electrical Insulation: Acts as an insulator, preventing current leakage in electrified systems for signal and power safety.
- Weather Resistance: Resists aging, humidity, and UV light, maintaining performance in diverse conditions without cracking.
- Cost-Effective: A more economical choice than rubber pads for moderate vibration needs, found in light rail and metro systems.
- Load Distribution: Distributes wheel loads evenly over a larger sleeper area, reducing stress concentration.
- Flexibility: Offers better elasticity and fatigue resistance than rigid materials like HDPE, making it suitable for moderate dynamic conditions.
| 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) |
How to choose the right material for a rail elastic pad?
Choosing the right rail elastic pad material depends on environmental conditions, track type, and operational needs, balancing cost, noise reduction, vibration dampening, and load capacity; common materials include robust Polyurethane (PU) for harsh/urban needs and cost-effective Natural/Synthetic Rubbers (NR/SBR) for moderate rural use, with enhancements like fibers for strength or cork for impact, always considering the specific demands for high speed, heavy loads, or urban noise.
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.