8 March 2025

Industrial Noise Control: Applicable Regulations

``SGF SOUNDPROOFING – Industrial Acoustics: Relevant Regulations

Industrial Acoustics: Complying with regulations means promoting safety, boosting efficiency, and enhancing well-being. Create a safer, high-performing workplace!

The most important current standards and laws are as following:

  • UNI EN ISO 11690
  • Machinery Directive 2006/42/EC
  • Noise Directive 2000/14/EC
  • ISPESL (Institute for Safety and Prevention at Work) good practice manual
  • Database of noise abatement projects on the Physical Agents Portal (PAF)

In a recent ruling, the European Court of Justice gave its judgment regarding respect for exposure of workers to noise. In practice, the EMPLOYER must reduce the NOISE at source without taking account of any noise reduction afforded by Personal Protective Equipment (European Court of Justice, Sect VII – Ruling of 19 May 2011 – “Directive 2003/10/EC – Exposure limits – Noise – Hearing protection – Intent”)

  • 81/08 –Title VIII
  • Standard UNI / EN 11347 (Technical and organisational measures required on exceeding 85 db(A)
  • The reference law for Noise Abatement projects in outdoor areas is “Legge Quadro 447 of 1995 e succ. D.P.C.M”

Associations

  • API of Turin
  • CIADI-ANIMA (CONFINDUSTRIA) – Anima sound-proofing plant and equipment manufacturers union (Stefano Lerda is the Chairman)
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18 May 2019

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It solves every noise pollution problem

SGF: NOISE REDUCTION AND INDUSTRIAL SOUNDPROOFING

Since 1986, SGF srl has been designing and manufacturing engineering solutions
for noise reduction and control across a wide range of industrial sectors,
whether for manufacturers or users of noisy equipment and machinery.

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Acoustic Enclosures

SGF designs and manufactures acoustic enclosures of any size for various industrial sectors
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Absorption-type Industrial Silencers

SGF designs and manufactures absorption-type industrial silencers for medium and high air flow systems
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Anechoic and Semi-Anechoic Chambers and Measurement Chambers

Anechoic and semi-anechoic chambers, as well as measurement chambers, are used for acoustic analysis. The choice of chamber type depends on the quality of the analysis required for the product being tested
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SOUNDPROOFING: OUR APPROACH
SGF Srl operates in the field of industrial soundproofing, designing, manufacturing, and maintaining acoustic systems
such as acoustic enclosures, industrial silencers, measurement rooms,
and anechoic and semi-anechoic chambers.
We manage the entire design and production process internally, offering specialized
consultancy in the field of applied acoustics.

Technical office and workshop

Our Technical Department is responsible for designing soundproofing interventions
using applications such as AutoCAD 2D and Inventor 3D. Additionally,
it schedules production with the help of Jet Cam software and the
Concept production management system, programming machine operations (paneling, sheet metal laser cutting, and tube laser cutting), as well as testing the finished product.
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Technical department and production workshop

Our workshop, dedicated to production, covers an area of 3,000 sqm.
Inside, it features a sheet metal processing department equipped
with state-of-the-art machinery, a carpentry department, and an insulation department.
Our staff is properly trained and qualified to carry out installations at the end customer’s site.
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If you need consulting or a quote, SGF has been serving companies in industrial soundproofing since 1986.

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CERTIFIED FROM INITIAL ANALYSIS TO ON-SITE INSTALLATION

Certifications of our industrial soundproofing systems

In particular, we are attentive to both the safety of the workers who will operate around the soundproofed machinery or production lines, and the protection of the installers and maintenance personnel who will need to intervene in complete safety to install, maintain, dismantle, and subsequently reassemble panels, doors, and structures.

ISO
9001:2015

Qualification in
Acoustic A1

Qualification in
Acoustic A2

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SGF HAS BEEN DESIGNING AND IMPLEMENTING
SOLUTIONS FOR NOISE REDUCTION AND CONTROL SINCE 1986

Noise reduction and industrial soundproofing

Since 1986, SGF srl has been designing and implementing engineering solutions for noise reduction and control in a wide range of industrial sectors, whether for manufacturers or users of noisy plants and machinery.

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S8farmin
16 October 2017

Correct standard technique

SGF SOUNFPROOF - Correct standard technique

The benchmark for safe, efficient, and high-quality work. Because excellence comes from adhering to best practices!

Technical standard of good practice for acoustic enclosures used in machinery and production lines

Premise

The machinery directive 2006/42-CE establishes that when a soundproof cabin is installed onto a machine or production line it becomes a safety device so is therefore subject to CE conformity.
Based on this principle, SGF S.r.l. being a manufacturer of soundproof systems (most of which are soundproof cabins for machinery and/or complete lines intended for production environments in various sectors) realises that beyond the safety of operators who work in the wokshop where  machinery or  production lines are installed, it is also necessary to ensure the safety of those who install them, of those who provide maintenance at the customer end, and of those who use the machinery upon which the soundproofed cabins are installed. This maintenance may be routine (periodical) or may come about due to an unexpected fault or problem, and the person responsible must intervene safely when disassembling and subsequently reassembling the panels, doors and structures.

How to ensure the safety of the people involved in manufacturing, assembly and disassembly

How to ensure the safety of the people involved in manufacturing, assembly and disassembly.

SGF S.r.l. builds sound enclosures primarily for manufacturers which produce machines that create an excessive amount of noise. In these cases our company is not aware of the work environment in which the acoustic cabin are to be installed.

The working environments in which the sound enclosure are installed onto machinery are often cramped spaces due to the proximity of other machinery, tools, work equipment, chords, and power systems of the actual machinery itself. This means there is limited possibility to work on the machine and provide the adequate lifting required (often without a crane). It is therefore also difficult for subsequent maintenance operations.
In addition to this, we ourselves, the creators of the soundproof cabins, despite being equipped with a crane and lifting means, must also handle the products used to make the cabins we manufacture inside our factory.
In these three cases: cabin construction, assembly and maintenance at the end customer, the machinery directive with regard to the manual handling of loads, which places a limit of 25 kg each worker.
Due to the aforementioned reasons, SGF S.r.l. builds soundproof cabins for machinery and production lines using the following procedure:

a. Structures

Structures in square section are composed of columns and crosspieces containing individual pieces so are therefore easy to handle. They are bolted together and can be dismantled and reassembled using screws and threaded inserts.

b. Panels

Panels with a weight not exceeding 25 kg where possible, above all for those that must be installed at a height greater than two meters. All panels are equipped with a projected weld nut inside the upper thickness of the panel itself, so that an eyebolt can be screwed to it, in order for lifting and positioning to take place from outside the cabin. The panels are attached to the structure with screws and threaded inserts. All these operations are always carried out from outside the cabin whilst on a suitable lifting vehicle if more than two meters above the ground. Each panel is equipped with a perimeter seal for acoustics beforehand in our workshop.

c. The doors

whether single or double wing, folding or sliding, must have passage lights according to the need for intervention on board the machinery. In most cases the installation of the doors of the cabin takes place on the first floor. To facilitate easy handling by two workers, the doors with a maximum surface of two square meters are made of simple press-folded sheet metal, insulated with suitable acoustic materials. To add strength, the large doors are equipped with square section frames as described in point a), to which the threaded inserts and the acoustic seals are applied followed by the panels as described in point b). Therefore even the large doors are assembled in individual pieces that can be manually manipulated, and for disassembly each one can be lifted with the use of eyebolts screwed to projection weld nuts.

d. Installation Accessories

Often, as the supplier, we are asked for internal lighting systems, security systems, automation systems for horizontal or vertical sliding doors and related wiring. These systems are always pre-installed at our workshop where we pre-assemble the cabin according to our procedure. In this phase the electricians install the cable ducts and electrical wiring, which are positioned in numbered modules and connected to one another, in order to be identified and quickly assembled without the use of tools – simply by looking at the construction drawing. This system also favors the end customer who, if necessary, has to move the machinery containing the soundproof cabin to another department. With the aid of our instructions, they can simply disconnect the various numbered connections and reinstall the entire system without the use of tools.

Assembly and Disassembly

All the components of a soundproof cabin are numbered, both on each individual piece (panel, structure, door, silencer, etc.), and on the construction drawing which is always attached to the CE conformity manual.

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S8farmin
16 October 2017

Company

SGF HAS BEEN DESIGNING AND IMPLEMENTING
SOLUTIONS FOR NOISE REDUCTION AND CONTROL SINCE 1986

SGF Ltd: Noise Reduction and Industrial Soundproofing

Since 1986, SGF Ltd has been designing and implementing engineering solutions for noise reduction and control in a wide range of industrial sectors.

whether dealing with manufacturers or users of noisy equipment and machinery, SGF proposes and solves every industrial noise pollution problem by intervening at the source. Where it is not possible to act directly on the noise source, SGF addresses the reflected noise with acoustic treatments of the environment. All operations are carried out in-house, following a process of excellence in the sector.

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SGF INDUSTRIAL SOUNDPROOFING

Corrado Tedeschi interviews Stefano Lerda

“It’s an honor to have been featured in Top Secret! Corrado Tedeschi chose our company for an exclusive interview, shedding light on our history, innovation, and vision for the future. Don’t miss it!”

Experience

SGF means over thirty years of experience and expertise in the industrial acoustic market, careful selection of materials, meticulous craftsmanship, and cutting-edge technologies in acoustic problem diagnosis and intervention solutions.

Research and
Development

SGF means continuous research and updating of sector-specific know-how, ongoing technical evolution in the development of new models to be produced, sensitivity to the style and industrial design of the product, modularity of feasible technical solutions, and an extremely high level of efficiency in time and processes.

Product Design
and Evolution

SGF means continuous product evolution from both a technical and stylistic perspective to offer the client the best of what’s currently available in the industrial acoustics market.

The Company’s Numbers

A Family Business. The Generational Continuity

Stefano Lerda, current President of Ciadi, holds a degree in engineering with a specialization in acoustics from the University of Ferrara. Stefano and his father Franco, the company’s founder, have always made a significant contribution to the regulatory activities at Uni. The Lerda family fully controls the company’s capital.”

1986

Founded in 1986: consolidated industry experience

3

Members of the Lerda family at the helm of the company: utmost care and attention to customer needs.

1

A team of highly qualified and specialized collaborators: precise workmanship, flawless construction, attention to detail

1

Customized Project for Each Client: Tailor-made soundproofing

1

Turnkey solutions: the entire design and production process is fully in-house

7000

Successful applied acoustics projects in both the Italian and international markets

700

Clients, some for over 40 years, thanks to a thoughtful, collaborative, and reliable partnership

1

Association, 1 President: Stefano Lerda is the President of the CIADI-ANIMA Association (Confindustria), which, since its foundation, has been assisting its stakeholders in the regulatory and legislative field, simplifying the reading and application of standards and their correct interpretation. Continuous updates are important not only from a technological and stylistic perspective but also from a regulatory and legislative point of view

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