When it comes to machines, considering the airborne insulation often does not suffice. This is illustrated by the following example:

     The music box in the illustration at the top represents our machine. When the clock mechanism is wound up, the barrel begins to turn, and the 18 pins generate a soft melody.

     Due to the small geometric dimensions of the device, only a few of the oscillations are transformed into airborne sound.

     The melody only becomes louder when the vibration-distributing surface is enlarged. This happens as soon as the music box is placed on a table top. The vibrations from the music box are now transmitted to the table top. This part is called structure-borne sound.

     Imagine that this machine is placed inside your business, causing unacceptable noise. Often the first measure to be suggested is a sound protection hood, which usually, however, has no effect whatsoever.

     The reason for this is the big difference between the soft “airborne sound” and the loud “structure-borne sound”. It makes it necessary to take primary measures that reduce the loud structure-borne sound.

     Elastic bedding with Regupol® and Regufoam®, adjusted to the machine in question, reduces the generation of the structure-borne sound.

     Placing in addition a sound protection hood over the machine removes the noise problem.