Innovative reduction of rail noise

The innovative Calmmoon Rail is a rail web noise protection system. The Calmmoon sheets convert sound waves into heat by molecular friction - an entirely new approach to solving the problem of noise reduction for railway tracks. The effect may be compared to a small noise insulation panel installed direct on the rail.
Technology property of: SEKISUI Chemical Co. Ltd.

Technology analysis

In 2008, in collaboration with koocoo, the efficiency of Calmmoon Rail is enhanced by 50%.

In 2009 detailed product analyses are carried out in practical use on the ÖBB Austrian rail network. The positive results feed into the market strategy.

Approvals procedure

In April 2010 the German EBA (Federal Railway Authority) grants approval for operational trials on the German rail network.


Calmmoon Rail is presented to industry customers at Innotrans 2010 in Berlin and IWRN 2010 in Nagahama/Japan.

DB user declaration

In March 2011 DB (German Railway) issues a positive user declaration.

Market launch

By March 2011 orders for the installation of Calmmoon Rail on up to 40 km of the DB network have been placed.