Decidamp RTD

noise reducing extensional rail damper

Decidamp® RTD is a high-performance engineered polymer composite designed to effectivity reduce structure borne noise generated during contact between the track and railway rolling stock wheel - also known as wheel/rail interface.

 By using our internal research and development team, together with leading acoustic engineers, acoustic modelling was carried out in controlled laboratory conditions. On-site field testing also ensures dampers are optimised to deliver maximum effectiveness on any track configuration.

Decidamp RTD can be easily fitted to existing and new rail track as a method of complying with noise legislation and environmental planning regulations. Decidamp RTD dampers are easliy attached to either side of the rail using specially designed brackets.

Once installed RTD will absorb vibrations efficiently and reduce rail generated noise. They are designed to be installed and fitted to most rail tracks and can be designed or tuned to meet customer noise requirements.

Decidamp RTD is a cost-effective option to reduce radiating noise from railway rolling stock.

Decidamp RTD

Decidamp RTD

Technical data

Please refer to the Technical Data Sheet (TDS) for more information.

Document downloads

Document title Document type Document language
DECIDAMP-RTD-TDS-125IP Technical Data Sheet English
DECIDAMP-RTD-INSTALL-125IP Installation Guide English
DECIDAMP-RTD-CLIP-TDS-126IP Technical Data Sheet English
Pyrotek Tunnel Catalogue Catalogues English


  • Railway tracks



  •  Decidamp RTD can reduce rail-radiated noise by up to 7.4 dBA
  • Light weight, 40% lighter than traditional rail track dampers
  • Easily installed, reducing down time during commissioning of new rail tracks or during maintenance
  • Dampers can be made available for various track profiles
  • Damping performance is tuned to be effective across the typical frequency range of track vibration
  • No maintenance requirement after installation, long life once fitted
  • Does not interfere with other elements of the rail assembly
  • No interfering with other track maintenance e.g. rail grinding
  • Reduces the reliance on noise barriers