In a forming workshop, a press is a very powerful noise source potentially causing sound nuisance for the personnel operating in the vicinity (in production halls) and sometimes also for the neighborhood. It is often necessary to use in such cases a high-tech soundproofing equipment (acoustic carterisation) to ensure the conformity of the facility with respect to the legislation on noise in workplaces and sometimes also with respect to the regulations in terms of fight against domestic noise.

ITS will participate in the construction of an acoustic carterisation for a press near Paris in the county of Yvelines in the region Ile-de-France (France).

This industrial soundproofing mean will have a sound reduction being particularly significant at medium and high frequency where the maximum of the noise emission of the enclosed noisy equipments is, requiring a specific design and a specific construction of the acoustic carterisation walls.

It will be made with metallic, modular, acoustic insulation panels, made of steel, with mineral wool filling (one side will be perforated to allow sound absorption) supported by a metal frame made with commercial profiles.

Two main functions are expected from the walls of an acoustic carterization for a press:

sound absorption i.e. ability to limit the reflection of acoustic waves inside the acoustic carterization (otherwise the sound pressure level inside would be increased, and, all other things being equal as regards the sound attenuation of the multilayer acoustic structure considered, the sound level outside would then also be increased)

sound reduction, to which the absorbent filling (e.g. mineral or polyester wool) contributes on the one hand, on the condition that the mass density (product of the density by the thickness) is not too low and on the other hand (and above all) the external steel sheet

Modular metallic soundproofing panels, such as those sold by ITS, make it possible to combine these properties, which are fundamental for obtaining effective soundproofing of a press by means of an acoustic caterization, whatever the objective in terms of sound level.

Related features such as visibility for the operation of the machines, access for maintenance work, disassembly of some subsets of the soundproofing equipments ... will be integrated according to the needs for this acoustic carterisation for a press.

A significant reduction in sound levels - of the order of 15 dB (A) - will thus be obtained in the machine environment, making it possible to limit noise exposure to different workstations: that of the operator (close), but also, those (more distant) of other workers who will be able to perform their tasks in better conditions.

Protection of workers against noise end faq