What are the characteristics of Rail Rubber Pads?

 

Rail rubber pads are characterized by their ability to absorb vibration and shock, provide insulation, and resist wear, aging, and harsh environmental conditions. They are made from durable materials like natural rubber, EVA, or HDPE, which provide high elasticity and stability, leading to a longer service life and lower maintenance costs for the rail system.

 

 

Rubber Rail Pad
Technical Parameter	Unit	Value
Stiffness	KN	90-130
Hardness Shore A	℃	72-80 degree
Electronic Resistance	Ω	≥ 106
Tensile Strength before Aging	Mpa	≥12.5
Elongation before Aging	%	≥250

 

HDPE Rail Pad
Technical Parameter	Unit	Technical Requirement	Value
Density	g/cm3	0.95-0.98	0.95
Tensile Strength	Mpa	≥19	19
Elongation	%	>80	150
Melting Point	℃	170-190	190
Insulation Resistance	Ω	≥1×1010	3.5 ×1010
Hardness	A	≥98	98(A)

 

EVA: Polyethylene 80%, Vinyl Acetate 20%.
Technical Parameter	Unit	Technical Requirement	Value
Density	g/cm3	0.95-0.98	0.95
Tensile Strength	Mpa	≥15	16
Elongation	%	>500	550
Melting Point	℃	170-190	170
Insulation Resistance	Ω	≥1×1010	5.0 ×1010
Hardness	A	≥90	92(A)

 

Mechanical and physical characteristics

 

• High elasticity and shock absorption: They deform elastically to absorb high-frequency impacts and vibrations from passing trains.

 

• Wear and abrasion resistance: They prevent direct contact between the rail and the sleeper, protecting both from wear and tear.

 

• High strength: They have high tensile strength to withstand the forces exerted by trains.

 

• Insulation performance: They provide good electrical insulation.

 

• Low compression set: They maintain their shape over time, ensuring long-term performance.

 

 

Functional and economic characteristics

 

• Noise reduction: By absorbing vibration, they help reduce noise pollution, especially in urban areas.

 

• Track stability: They help maintain the correct gauge of the track and prevent lateral movement of the rail.

 

• Long service life: Their durability results in a long service life.

 

• Low maintenance: Their robustness reduces the need for frequent maintenance and replacement.

 

• Easy installation: They are lightweight and flexible, which simplifies installation.

 

 

Environmental and durability characteristics

 

• Resistance to extreme temperatures: They can withstand a wide range of temperatures, from -40℃ to 70℃ or more.

 

• Weather resistance: They are resistant to UV rays, rain, and other environmental factors.

 

• Aging resistance: They resist natural aging processes.

 

• Chemical resistance: They are resistant to oil and water.

 

As a professional rail fastener manufacturer, GNEE RAIL can produce various types of rubber rail pads with different materials, such as natural rubber, EVA, HDPE and so on. Our EVA/HDPE/rubber rail pads are with high elasticity, applying to types for rails such as rail UIC54, UIC60, BS80lbs,BS100lbs, and sizes as ordered. The pads can be customized with or without grooves, in various possible designs, depending on customers' requirements.

 

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