How thick are rail pads

Rail pads are elastic polyurethane mats which are interposed between steel rails and railway sleepers to protect the sleeper top from wearing and impacting.

 

The starting stiffness of a rail pad is designed to not be high so that their relative deformation under the spring clip toe loads is greatly substantial. In this way, it can guarantees the rail pad maintaining in close contact with the rail despite of any vertical movements of the latter. In addition, the reason why rail pads made up of rubber or plastic is to dampen the shocks of vibration of a passing train.

 

 

The thickness of a railway pad is not fixed; it is designed according to the track type, train speed, load magnitude, and the fastening system used.

General Guidelines:

 

 

• Standard Railways: Railway pad thickness typically ranges from 5mm to 10mm.

 

• Heavy-Haul / High-Speed Railways: Thickness is usually between 7mm and 12mm, with some high-elasticity composite pads even reaching 16mm.

 

• Crane Rails or Special Tracks: Due to greater impact forces, thickness may require 10mm to 20mm.

 

Relationship Between Function and Thickness:

 

 

• Thinner Pads (5–7mm): Primarily used for standard passenger railways, meeting basic vibration damping and protection functions.

 

• Medium Thickness Pads (8–12mm): Common in high-speed and heavy-haul railways, offering better load distribution and improved cushioning.

 

• Thicker Pads (>12mm): Suitable for crane rails, subways, or special projects, providing stronger vibration damping and noise reduction performance.

 

Conclusion: Common railway pad thickness ranges from 5mm to 12mm, but they can be customized based on project requirements.

 

GNEE RAIL can supply Railway Pads in various thicknesses and materials (rubber, EVA, TPU, composites), along with complementary full-range railway fasteners such as Rail Clips, Rail Tie Plates, Fishplates, Rail Bolts, and Crane Rail Clips. We also support customized design and provide technical guidance to meet the diverse needs of global railway projects.

 

Send your special customization requirements to GNEE.