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Polyurethane Rail Track Bed Vibration Isolation Pad

A polyurethane rail track bed vibration isolation pad is installed between the metro track bed and its foundation to effectively reduce noise and vibration. It is made from microcellular polyurethane.

Installation methods include:

Full-surface coverage of the entire track bed
Strip placement beneath the rails
Spot placement

Customization options: Size, thickness, and stiffness can be adjusted to meet specific project requirements.

product details

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Technical Specifications

Item	Unit	EN standard requirement
Thickness*	mm	25-35
Static Foundation Modulus*	N/mm³	0.01
Natural Frequency	Hz	≤20
Compression set	%	≤ 10
Insulation Resistance	Ω	10⁸
Items with * can be customized according to the line requirements.

Custmized Railway Ballast Vibration Reduction Mat EN Standard101

Key Characters

Polyurethane Rail Track Bed Vibration Isolation Pad modifies the system's natural frequency to minimize vibration and noise Decreases ballast contact force by 10–25%, which helps slow ballast displacement Enhances load distribution by increasing the contact area between sleeper and ballast from 5–8% to 25–35% (with pad stiffness C = 0.2 N/mm³) Reduces rail corrugation on curves and turnouts Provides cushioning for rigid contact between sleeper, ballast, and subgrade

You can install it in two ways according to your line requirements: lay it down on-site before pouring the concrete track bed, or bond it to a prefabricated slab track off-site, then bring the whole unit to the job site.

What we do & Why choose us?

For over 20 years, Changmei Technology has specialized in designing, manufacturing, and exporting high-quality Railway Ballast Vibration Reduction Layers and related products. Our Tram Track Polyurethane Resilient Cushions, Metro Subway Polyurethane Track Underlayments, and Rail Web PU Elastomer Damping Pads are widely trusted and used on many renowned railway lines worldwide, achieving a customer satisfaction rate of 98%.

Each Polyurethane Rail Noise Reduction Sheet, Light Rail Polyurethane Vibration Absorber Mat, and Heavy Haul Railway PU Track Bed Isolator undergoes rigorous testing in our on-site 1,200-square-meter CNAS-accredited laboratory. Samples are carefully evaluated for physical properties, chemical performance, and fatigue resistance to ensure the highest standards. Our Polyurethane Mass-Spring System Track Pads, Rail Corrugation Control PU Foam Underlayments, Polyurethane Elastic Layers for Ballastless Tracks, and Sleeper-Borne Polyurethane Noise Reduction Mounts are only packaged and shipped after passing all stringent tests, guaranteeing reliable vibration isolation and noise reduction for modern rail systems.

Production Capacity & Delivery

We manufacture the Polyurethane Rail Track Bed Vibration Isolation Pad entirely in-house within our dedicated continuous foaming workshop. This facility is equipped with an automated German production line, ensuring both consistent quality and high production efficiency. Our current annual capacity reaches 1500,000 square meters of these vibration isolation pads.

Regarding delivery, lead times are adaptable. Depending on the customer's order size and specifications, we typically dispatch shipments within 7 to 30 days following order confirmation.

Custom Mould Design & Manufacturing

– In-House, Start to Finish

Our Mould Engineering Department operates a fully digital workshop with over 20 CNC machines, including machining centers, spark eroders, and wire cutters. This lets us design and produce virtually any mold the rail transit industry requires—rubber, SMC, injection molding, and specialized types like auto core-pulling bush molds.

We manufacture about 300 sets of molds and tooling annually. If your project needs a custom shape, special material, or unique feature for the Polyurethane Rail Track Bed Vibration Isolation Pad, we’re ready to deliver a tailored solution.