Crane rail pads are an essential component of crane rail systems, installed between the rail and the sleeper. They absorb impact and vibration generated during crane operation, protecting the structural integrity of both sleepers and rails. They significantly extend track life, reduce maintenance frequency, and ensure smooth and safe crane operation.
Crane rail pads are typically made of polymer composites, rubber, or HDPE, featuring high hardness, wear resistance, aging resistance, and corrosion resistance. They can withstand the high stresses caused by concentrated loads and frequent crane movement. Different thicknesses, hardness, and materials can be selected based on rail type and load requirements to optimize track load distribution and vibration absorption.
HDPE
| No. | Technical Parameter | Unit | Technical Requirement | Value |
| 1 | Density | g/cm3 | 0.95-0.98 | 0.95 |
| 2 | Tensile Strength | Mpa | ≥19 | 19 |
| 3 | Elongation | % | >80 | 150 |
| 4 | Melting Point | ℃ | 170-190 | 190 |
| 5 | Insulation Resistance | Ω | ≥1×1010 | 3.5 ×1010 |
| 6 | Hardness | A | ≥98 | 98(A) |
EVA: Polyethylene 80%, Vinyl Acetate 20%
| No. | Technical Parameter | Unit | Technical Requirement | Value |
| 1 | Density | g/cm3 | 0.95-0.98 | 0.95 |
| 2 | Tensile Strength | Mpa | ≥15 | 16 |
| 3 | Elongation | % | >500 | 550 |
| 4 | Melting Point | ℃ | 170-190 | 170 |
| 5 | Insulation Resistance | Ω | ≥1×1010 | 5.0 ×1010 |
| 6 | Hardness | A | ≥90 | 92(A) |
Rubber
| No. | Technical Parameter | Unit | Value |
| 1 | Stiffness | KN | 90-130 |
| 2 | Hardness Shore A | ℃ | 72-80degree |
| 3 | Electronic Resistance | Ω | ≥ 106 |
| 4 | Tensile Strength before Aging | Mpa | ≥12.5 |
| 5 | Elongation before Aging | % | ≥250 |
Main Function of the Crane Rail Pad
Buffer and shock absorption
- When the crane wheels pass through the track, the crane rail pad absorbs the impact force and vibration through elastic deformation, thereby reducing the instantaneous impact load on the lifting rail and foundation structure.
- Effectively increase the service life of heavy-duty crane rails and high-frequency transportation crane rail systems.
Noise Reduction
- The crane rail pad is sandwiched between the steel sole plate and the crane rail, effectively reducing metal-to-metal contact and noise during operation.
- For indoor applications requiring high noise control, such as indoor overhead cranes or port cranes, this can significantly improve the working environment.
Evenly distributes loads
- Crane rail pads effectively and evenly distribute the load from the crane rails to the substructure, preventing uneven loading that could cause concrete cracking or damage to components.
- They can also effectively compensate for height differences in uneven foundations.
Corrosion Resistance
- Effectively reduces direct erosion of the iron plate and roadbed by moisture, oil, and chemicals, making it particularly suitable for port and open-air track environments.
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.
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