What are features of rail pad?
Rail pads are resilient components (often rubber/polyurethane) placed under rails, featuring excellent elasticity, shock absorption, and vibration damping, plus wear/age resistance, to distribute wheel loads, reduce noise, protect sleepers, enhance track stability, and provide electrical insulation, extending the lifespan of the entire railway system. Key features include high strength, dimensional stability, resistance to heat/cold/aging, and designs with ribs or grooves for better grip.
Core Features of railwy pad:
- Vibration & Shock Absorption: Cushions impacts from trains, reducing noise and vibration transmission.
- Load Distribution: Spreads heavy wheel loads over a larger surface, preventing concentrated stress.
- Wear & Fatigue Reduction: Protects the rail seat and sleepers from abrasion and fatigue.
- Electrical Insulation: Prevents electrical current leakage, crucial for signaling systems.
- Stability: Contributes to overall track stability and proper rail positioning.
Material & Design Properties of Railroad Pad:
- Materials: Typically natural rubber, EVA, HDPE, or polyurethane.
| 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 |
- Durability: High resistance to aging, abrasion, heat, and cold.
- Elasticity: Offers defined elasticity and less compression deformation.
- Design Elements: May include grooves or contours for enhanced grip and vibration dissipation.
Features of Rail Pad from GNEE RAIL
- Shock absorption, ageing resistance, abrasion resistance, stability, thermal stress resistibility. Rubber rail pads are made of natural rubber, butadiene-styrene rubber, chloroprene rubber adhesive, HDPE and EVA. The rubber rail pads made by GNEE RAIL has many features like high elasticity, non-deformation and non-breaking in a large range of temperatures.
- Long service life, low maintenance and replacement costs.
- We can produce various standards of rubber rail pads with different materials, the rubber rail pads are suitable for wooden railway sleepers, concrete railway sleepers and steel railway sleepers.
As a professional and veteran rail fastener manufacturer, GNEE RAIL has been certified by iso9001/2008. Up to now, we have more than 130 sets of machines in our railway pads production lines, and the annual production capacity can reach 2, 000, 000 sets. Our product serves clients all over the world and gets unanimous praise.
