The systems are easy to install, maintenance free and compatible with all types of track design; with their use also proven to reduce the life-cycle cost of the railway.
When USPs are installed, the stress within each sleeper is reduced due to a more even distribution of axle load.
Installation of Under Sleeper Pads can extend the interval between essential track maintenance, such as LLT, by a minimum factor two.
The thickness of the ballast layer can be reduced by up to 10cm with the addition of USPs to normalise track stiffness.
Including USPs within a transition between sub-structures offers a controlled difference in track stiffness and settlement, resulting in a much smoother transition.
The use of USPs can combat the effect of sand ingress, which stiffens the ballast matrix.
USPs can greatly reduce rail corrugation in tight curves, increasing grinding intervals and therefore reducing maintenance costs.
USPs have a low environmental impact and increase the sustainability of the track.
Under Sleeper Pads can either be installed onto fresh concrete during sleeper production using MFF® technology, or glued onto existing sleepers.
Designed to last, Pandrol USPs have tested long-term stable properties and continued performance. They are highlyresistant to changing atmospheric conditions, chemical exposure and mechanical fatigue.
Available in a wide range of stiffnesses, Pandrol USPs provide a tuneable approach to vibration isolation that can be modified to meet exact requirements.
Pandrol USPs are individually designed for the required sleeper profile, meaning that a perfect fit is always achieved.
The Resin-Bonded-Rubber used in Pandrol USPs is highly resilient and returns to its original form even after large localised indentation; such as when stacking Sleepers with USPs on thin wooden blocks.
Pandrol USPs are made from over 90% recycled materials and are 100% recyclable.