The protection of workers against noise can usefully be considered by companies not only as a regulatory imperative to which they must comply (at least: in France, in connection with the transposition into national law of the European directive no. 2003/10/CE of 6 February 2003) but also as a factor of productivity, since it constitutes a major aspect of the creation or maintenance of favorable conditions for a job well done.
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the protection of workers |
In the matter of protection of workers against noise, the respect of noise exposure limit values often makes it necessary to implement soundproofing actions in relation to which ITS can intervene to perform a diagnosis (if necessary: with acoustic measurements on site), size and commercialize equipment whose performance is guaranteed.
The experience of ITS human resource, acquired during such projects for decades, and diversified commercial partnerships to cover the different works involved in the resolution of technical issues of all kinds, directly related to the soundproofing or connected, make possible interventions in all industrial contexts.
For the protection of workers against noise, ITS offers powerful solutions at a reasonable cost in response to all the needs in the matter of soundproofing (preventive or curative) by the means of ergonomic equipment (standard or tailor made) for which the quality of design and of execution meets the highest level of requirement in this area for an efficient fight against noise in the context of compliance with legislation or of improvement of working conditions.
Workshop booths, soundproofed control rooms and offices
ITS markets workshop booths, soundproofed control rooms and offices providing, with a high level of habitability, an effective protection against noise, inner noise levels being always below the limits recommended in various refrence documents used in France e.g. standard ISO 11690-1 Acoustics - Recommended practice for the design of low-noise workplaces containing machinery - Part 1: Noise control strategies, standard NF S 31080 Acoustics - Offices and associated areas - Acoustic performances levels and criteria by type of area, standard NF S 31-199 Acoustics - Acoustical performances of open plan offices.
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All the features required for habitability can be integrated (visibility, heating, air conditioning, lighting, electricity, interior design...).
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soundproofed control room (corrugated paperboard industry)
soundproofed workshop offices on 2 floors (mechanical industry)
Acoustics improvement (reduction of the reverberation) of working premises
ITS markets the implementation of suspended acoustical ceiling tiles and acoustic baffles, installation of acoustical wall panels contributing also to the improvement of the visual ambiance. Such works allow the compliance of premises (e.g. industrial) in which machines and devices likely to expose workers to a daily sound exposure level greater than 85 dB(A) shall be installed: the decrease in sound level by doubling the distance from the source, linked to the reverberation of noise on the walls inside buildings is regulated, in France, by the Decree of August 30, 1990 taken for the application of article R. 235 -11 of the labor code and relating to the reverberation control of work premises.
Noise reduction at source for machines and equipment
ITS offers enclosures (acoustic hoods) for noisy machines and equipment, soundproofing partitions and also: limitation of noise propagation by the implementation of acoustical screens. Related features such as disassembly / mobility of the walls or of subsets, visibility, ventilation, lighting, securities, fire protection ... are integrated to robust constructions with quality finishes ensuring a high durability and sometimes also contributing to the limitation of other nuisances than noise: dust, fogs, fumes, heat, laser radiation ...
At the end of such actions of protection of workers against noise, the sound levels are always below the limits triggering the action in Europe i.e. exposure level L EX, 8h = 80 dB(A) and/or peak sound pressure = 112 Pa or 135 dB(C) ref. 20 μPa.
In paper industry as well as in corrugated cardboard industry, ITS offers means to diminish noise levels to which workers are exposed:
- acoustic carterisations and soundproofing partitions with respect to machinery and production lines as noisy as: corrugators, processing machinery (cutting / trimming, folding and gluing, stapling, ...) and printing machines for corrugated cardboard
- enclosures and silencers with respect to peripheral equipment causing noise such as grinders, chippings suction systems, dust removal systems ...
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Manufacture of paper or of corrugated cardboard involves means of production for which the noise emissions often justify the implementation of means of fight against noise whose acoustic performance must be high to allow the achievement of levels of noise exposure of workers complying with the legislation.
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enclosure for a corrugator (corrugated cardboard industry)
carterisation for a printing machine (corrugated cardboard industry)In printing industry, ITS is proposing means to reduce the noise exposure of workers:
- soundproofing enclosures and acoustic partitions with respect to machinery and production lines as noisy as: rotary presses (commercial printing, photogravure printing)
- enclosures and silencers with respect to peripheral equipment causing noise such as grinders, chippings suction systems, dust removal systems ...
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One finds in printing industry numerous machines that are so noisy that it is necessary to have recourse to sound pollution reduction devices of high performance in order to meet the limits of the regulation in terms of sound level at workplaces.
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soundproofing partition for a rotary press (printing industry)
soundproofing partition for a rotary press (printing industry)In the industry of metal processing, ITS offers ways to fight against noise at work:
- soundproofing carterizations and acoustic partitions with respect to machinery (machine tools) and production lines as noisy as those used for shaping::
- assembly machines: stappling, clinching, flow drilling, riveting, crimping ...
- environment of presses: unwinding reels, rectifiers, leveling machines, tapping machines, shears, croppers, beading machines, moulding machines, grooving machines ...
- machines for wires and strips: pointing machines, rolling mills, wire feeders, rectifiers, cutting machines, units for machining the ends of bars and wires, machines for making grids and meshes, machines for concrete wires, machines for springs , materials for cabling, equipments for wire drawing, bending machines ...
- laser machines for welding and cutting ...
- punching machines, combined machines, notching machines: lines of punching, shearing, folding ...
- presses: lines for cutting and stamping, forming machines, hydroforming machines, electric presses, hydraulic presses, mechanical presses, pneumatic presses, fly presses, transfer presses, spinning lathes ...
- machines for profiles, thick plates: drilling centers, bending machines with rollers for profiles and tubes, shears & punching machines, machines for metalworking, presses for flattening and leveling ...
- machines for slitting, profiling, cutting to length, production lines ...
- machines for tubes shaping or bending: units for punching, notching, drilling, bending machines, machines for cutting and chamfering ...
- soundproofing carterizations and acoustic partitions with respect to machinery and production lines as noisy as those used for the removal of material:
- grinders ...
- boring machines ...
- machining centers: centers for milling (milling machines: numerically controlled, with fixed bed, milling boring machines), turning centers (lathes: CNC, parallel, vertical), machining centers for profiles, saws ...
- filtrations, aspirations, crushing devices: industrial vacuums, chip conveyors, collectors ...
- special machine tools: for turning or grinding, broaching machines, drilling machines, machines for rectifying, centering and chamfering, lapping machines, machining and deburring units, slotting machines, threading and tapping units ...
- grinders, sanders ...
- sand spraying machines ...
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The industry of metal processing uses machine tools and production lines generating sometimes noise at low frequencies (which may have an impulsive nature) and sometimes also noise in high frequency requiring the implementation of various soundproofing solutions, taking into account the constraints related to production and maintenance.
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enclosure for a stamping presses line (automotive industry)
enclosure for a punching press (aviation industry)In the industry of boiler-making, ITS offers ways to limit noise in workshops:
- noise barriers for grinding boxes, deburring boxes, deflashing workplaces, pneumatic chipping workplaces, flattening workplaces ...
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The field of boiler-making involves operations whose sound emissions are often rich in midrange and treble frequencies (with an impulsive characteristic) that requires control methods against noise to prevent workers from the risk of deafness...
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acoustical screen between 2 grinding boxes (aerodynamics industry)In wood industry, ITS offers means to reduce the exposure noise level of workers:
- soundproofing carterisations and acoustic partitions with respect to machinery and production lines as noisy as: debarking drums, planing machines, moulding machines, machining centers, special machines, grinders...
- enclosures and silencers with respect to peripheral equipment causing noise such as grinders, chippings suction systems, dust removal systems ...
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One finds in the wood industry many machines with noise emission (notably in high frequencies) leading operators to be in a position of hearing trauma in a manner such than they must be protected through the implementation of acoustic hoods for machinery.
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enclosure for a planing machine (wood industry)
enclosure for a mulding machine (wood industry)In the industry of prefabrication for construction, ITS offers means to reduce the noise poluution to which workers are exposed:
- soundproofing carterisations and acoustic partitions with respect to machinery and production lines as noisy as: concrete molding presses, concrete blocks presses, pavement borders presses, brick presses ...
- enclosures and silencers of all kinds e.g. for peripheral equipment causing noise such as grinders, chippings suction systems, dust removal systems ...
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In the industry of prefabrication for the construction, many products are made with presses that are characterized by very high noise emissions at low frequencies that make necessary the implementation of enclosures.
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enclosure for a concrete block press (construction prefabrication industry)In all sectors of activity, ITS offers means to reduce the noise exposure of workers:
- enclosures with respect to peripherical equipment creating sound nuisance such as guiding devices and positioning equipment, conveyors, feeding devices, vacuum systems (suction systems), hydraulic units, compressors, motors, fans ...
- enclosures and silencers with respect to peripheral equipment causing noise such as grinders, chippings suction systems, dust removal systems ...
A wide ranges of products and services for the protection of workers against noise
ITS offers soundproofing products and equipment for the protection of workers against noise (improvement of working conditions).
In France, as in the rest of Europe, such means are an integral part of a program of technical measures to reduce exposure to noise, which must be considered (in noisy workplaces) when the level of daily noise exposure is above 85 dB(A) and / or when the peak sound pressure level is above 137 dB(C) and, a fortiori, when the daily exposure level at noise is above 87dB (A) and / or when the peak sound pressure level is above 140 dB(C) - immediate noise exposure reduction measures are then mandatory -.
On-site measurements, design, construction (with or without installation) are part of the range of products and services marketed by ITS in terms of protection of workers against noise.