Polyurethane track bed damping pad

Name: Polyurethane track bed damping pad
Brand: Longhua Technology Group (Luoyang) Co., Ltd.

Polyurethane track bed damping pad 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. The product 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.

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Performance Indicators Advantages

Performance Indicators of Polyurethane track bed damping pad

Project	Unit	Rated Value	Remarks
Static Fundamental Modulus	N/mm3	Customized Design	1.8～9kN Loading Load: 1.8 ~9 kN
Dynamic and Static Stiffness Ratio	1	＜1.3	1.8～9kN（4Hz） 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

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 abo

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