How to correctly install Rail Rubber Pads?

 

To correctly install rail rubber pads, first prepare the supporting surface by cleaning it and ensuring it is level and dry. Then, place the rubber pad on the cleaned surface, aligning it correctly under the rail's intended position. Finally, place the rail on top of the pad and secure it using the appropriate fasteners, tightening them to the specified torque.

 

 

Step 1: Prepare the surface

 

• Clean the area: Ensure the supporting surface (like a soleplate or ground) is clean, dry, and free of oil, grease, or debris.

 

• Ensure it's level: Check that the surface is level and properly prepared before placing the pad.

 

Step 2: Position the rubber pad

 

• Align the pad: Lay the rubber pad on the prepared surface, ensuring the grooved or recessed side faces up to contact the rail.

 

• Center the pad: Position the pad so it is centered under where the rail will be installed and does not protrude beyond the rail's edges.

 

Step 3: Install the rail

 

• Place the rail: Carefully place the steel rail on top of the rubber pad, making sure it is correctly positioned.

 

• Fasten securely: Install the rail clips or fasteners, placing the clip body over the bolts and the washer over the bolt.

 

• Tighten to torque: Tighten the nuts with a spanner to the manufacturer's specified torque. Do not overtighten, as this can damage the components.

 

• Check alignment: After securing, check the alignment and make any necessary final adjustments to ensure the rail is straight and level on the pad.

 

• Perform a final inspection: Inspect the entire installation to confirm the pads are securely fastened and there are no loose ends or gaps.

 

Rail pads Functions

 

• Rail pads plays 2 main parts in railway system. It can diminish shock and impact on steel rail, as well as reduce resonant vibration aroused from the concrete sleepers (lowest resonant frequency about 200Hz), and absorb the vibration deviation (about 0.12mm amplitude, 1000Hz) of the track part between sleepers. What's more, rail pads can prevent abrasion and crushing of the sleeper under the foot of the track.

 

 

• The rubber rail pads are usually designed to have a specific load-deflection characteristic. The initial stiffness of the pads is designed to be very low, making their deformation under the spring toe load quite large. This ensures that despite any vertical movement of the rail, the pad is still in close contact with it. When the wheel is above the pad, the stiffness of the track must be high to prevent large movement, resulting in loose metal spring washers. This load deflection characteristic can be obtained by introducing grooves in the rubber pad.

 

 

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

 

As a professional rubber rail pad manufacturer GNEE RAIL can produce various standards of rubber rail pads and other rail fasteners. If you want to build a railway line, do not hesitate to contact us, we can supply all types of rubber rail pads with different materials. If necessary, we can make customized rubber rail pad production.

 

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