Rail pad is a kind of rail fasteners used between the rails and the tie plate, and it is usually made of elastic polyurethane mat. It is usually used under the rails and above the tie plate. Rubber rail pad can buffer the shake that the vehicles pushed on the tie plate and protect the tie plate and the sleeper from abrasion and impaction and prolong the service life of other fasteners.
Rail Rubber pads are manufactured in accordance with customer specifications. We are ready to undertake the development of design documentation. All the necessary production and technological equipment is also manufactured in-house by GNEE RAIL.
The Application of Rail Rubber Pads in Railway Fastening System
Rail pads for W14, W21, W30 rail fastening systems
| Name Dimensions (mm) | ||
 |
ZW 900dNT-201 | 180x139x9 |
 |
ZW 1000dNT-85 | 175x139x10 |
 |
ZW 900TT-124 | 180x124x9 |
 |
ZW 900TT | 180x149x9 |
 |
ZW 700NT /139/160-60 | 160x139x7 |
|
|
ZW 700NT /129/160-60 | 160x129x7 |
Rail pads for KB65, ZBR, ARS-4 rail fastening systems
| Name | Dimensions (mm) | |
 |
CP-328 CP-328 asymmetric |
399x145x10 |
 |
CP-356 R65 | 165x148x7 |
 |
CP-356 R50 | 166x130x10 |
 |
CP-318-03-1 | 163x150x8/11 |
 |
CP-318-02 | 163x150x6/9 |
 |
CP-248 | 190x148x10 |
 |
ARS-4 | 210x152x14 |
Other types of rail pads
| Name | Dimensions (mm) | |
|
|
Noise reducing rubber pad | 195x190x10 |
|
|
V 680.133 | 190x140x5 |
What is the material of the rail rubber pad?
Rail rubber pads are primarily made from natural rubber or synthetic elastomers like EPDM, often blended with materials such as SBR, NBR, or Polyurethane (PU), mixed with fillers like carbon black for reinforcement and vulcanizing agents, sometimes incorporating steel mesh or HDPE layers for enhanced strength and durability. These composites provide essential shock absorption, vibration dampening, and wear resistance for railway tracks.
Key Materials Used:
- Natural Rubber (NR): Valued for its excellent elasticity and shock absorption.
| 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 |
- Synthetic Rubbers:
EPDM (Ethylene Propylene Diene Monomer): Offers superior weather, heat, and ozone resistance.
Nitrile Rubber (NBR): Added for improved oil resistance.
Styrene-Butadiene Rubber (SBR): A common synthetic rubber component.
Polyurethane (PU): Used for high wear resistance and durability, especially in demanding applications.
- Fillers & Additives: Carbon black reinforces the rubber, while vulcanizing agents create strong cross-links, and sometimes specialized agents like titanate coupling agents are used.
- Reinforcement: Steel mesh or plates are embedded in some designs for increased rigidity, especially in multi-layer pads.
- Other Materials: Some pads use HDPE (High-Density Polyethylene) or EVA (Ethylene-Vinyl Acetate) in formulations.
| 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) |
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.