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Polyurethane Track Bed Damping Pad

Polyurethane railway pads are high-performance components designed to provide superior vibration damping and noise reduction for modern rail systems. Made from durable and resilient polyurethane, these pads play a critical role in enhancing track stability, protecting infrastructure, and ensuring passenger comfort.


Longhua's Polyurethane railway pads adopt adjustable foaming polyurethane system and elastic bubble hole vibration damping technology to achieve a vibration damping effect of more than 12dB in track system. 


Our PU railway pad has the advantages of light weight, quick and convenient installation, good aging and fatigue resistance, etc., and it can be widely used in the subway, urban railroad and intercity railroad.


Check out the details of our railway pads. Please feel free to contact us if you have any questions! 

Polyurethane Track Bed Damping Pad

Performance Indicators of Polyurethane track bed damping pad


Project

Unit

Rated Value

Remarks

Static Fundamental Modulus

N/mm3 

Customized Design

Loading Load: 1.8 ~9 kN

Dynamic and Static Stiffness Ratio

1

<1.3 

Loading Load: 1.8 ~9 kN (4Hz)

Fatigue Performance

%

Thickness varies no more than 3%; 

Stiffness varies no more than 10%

After 10 million times of fatigue load, the surface of damping pad is not damaged or sticky.

Service Life

Year

>50 

/

Ambient Temperature

-30~+70 

/

Thermal Compression Permanent Deformation

%

≦10 

70℃, 24h, 30% Compression Rate


At Longhua, we specialize in providing high-quality railway pads made from a variety of materials to meet diverse vibration damping requirements. Our product range includes both rubber rail pads and polyurethane railway pads, designed to enhance track performance and durability. In addition, we offer a complete selection of rail fastening systems, ensuring comprehensive solutions for rail infrastructure projects.

Polyurethane Track Bed Damping Pad

Advantages of Polyurethane track bed damping pad

01

Customized Stiffness Design: 

It makes full use of polyurethane microporous elastomer and geo-nonwoven fabric composite stiffness which can be designed to achieve the characteristics of “low load low stiffness, high load high stiffness”, so that the vibration damping effect could reach ideal state under the premise of ensuring safety.

02

Thermal Compression Permanent Deformation: 

Due to the characteristics of polyurethane microporous elastomer raw materials and soft and hard section structure characteristics, its elasticity and toughness is excellent, so that the thermal compression permanent deformation is only about 7%.

03

Excellent Weather Resistance and Ozone Resistance Performance

The system does not contain unstable unsaturated double bonds, so that its heat resistance, water resistance, especially ozone resistance performance is excellent. (No cracking phenomenon)

04

Excellent Vibration Reduction Performance: 

Compared with ordinary elastic split fastenings without track bed damping pad, the vibration reduction can reach 12dB and above.

Polyurethane Track Bed Damping Pad

Longhua Group Certificates and Honors

Longhua Technology Group's wholly-owned subsidiary, Luoyang Kebos New Material Technology Co., Ltd., specializes in research and development as well as industrial applications of resin-based composite materials, structural foams, rubber and plastic materials, modified resins, and vibration damping and noise reduction technologies. The company operates across multiple areas, including material formulation design, structural design, product development, production and sales, testing, technical services, and engineering contracting.

As a pioneer in China's railway vibration damping, noise reduction, and lightweight technologies, we are known for our innovative R&D team that developed dual-layer damping fasteners. The company provides high-quality railway damping pads, synthetic railway sleepers, and railway fixtures and fastenings, contributing to improved performance and sustainability in railway systems. Contact us now if you have any requirements!

Intellectual Property Right Certificate
Intellectual Property Right Certificate
Honor Certificates
Honor Certificates
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