Under Sleeper Pads are specially designed for application under concrete sleeper for ballasted track. They can be manufactured with a specific non woven layer for assembly into wet concrete during the sleeper production process.
Under sleeper pads provide vibration protection, preserve the ballast under the tracks and improve track stability. They can be installed both in high-speed rail lines and in lines with high axle loads, as well as in existing standard gauge lines, during repairs and retrofitting.
Benefits of USP:
- Reduction of dynamic forces in the ballast bed = improvement of the track stability
- Enlargement of the contact surface between the sleeper and ballast = ballast protection
- Distribution of loads over a larger number of sleepers = extension of the service life between tamping intervals
- Reduction of ripple and slip wave formation
- Retrofitting of track tracks with vibration protection
The material of the USP shall be one of the following:
a) Polyurethane (PUR)
b) Natural rubber (NR)
c) Thermoplastic Elastomer (TPE)
GNEE RAIL can provide various specifications of under sleeper pads.We also manufacture kinds of Railway Screw Spike, Clip and Clamp, High Tensile Bolt with Nut and Washer, Rail Base(Tie) Plate, Rail Fish Plate, Rail Shoulder, Rail Screw and Spike, Fish Bolt with Nut and Washer, Rail Dowel, Rubber and EVA Pad, Crane Rail and Light Rail, and Other rail fasteners parts.
