The CDM-ABSO-RAIL? system is designed to damp the ‘pin-pin’ resonance peaks in ballasted tracks, bridge structures, tunnels, etc... Without treatment, the pin-pin vibration modes of the rail will reradiate a high volume of noise which will sometimes be unacceptable in nearby areas. (significant spectrum: 850 Hz - 2000 Hz).

Components:

(1) Steel bottom plate

(2) High damping material, covering the steel plate at both sides

(3) Composite rubberblocks

(4) Steel top plate and bolt, to press the rubberblocks firmly against the rail

Advantages:

1 The CDM-ABSO-RAIL? ensures considerable wave decay rates in the important frequency range (see graphs below)

2 Straightforward installation

3 The shape of the absorber elements can be adapted to the railtype as well as to the project requirements