Essential information for end of life vehicle dismantling, depollution and recycling


New soundproofing enclosure for A1’s baler

A1 Group, specialists in innovative, integrated waste management solutions talk about their new soundproofing enclosure to lessen noise impact on the local community.


New soundproofing enclosure for A1's baler f

It sounds eerily quiet in the yard at the moment, despite being at our busiest! Recently, a major project took place on our Lefort Amazone TS 1000 Baler. We had Acoustic Enclosures Ltd on-site installing a huge steel, sound dampening enclosure around the baler to minimise the noise impact on the local community.

The enclosure stands at 4400mm wide x 7145mm long x 5000mm high so is somewhat impressive in size. The structure is made of 3mm zinc-coated steel and 100mm panels filled with Melinex lined mineral wool retained with galvanised perforated steel for ultimate sound minimisation – what a mouth full that is!

Alongside the enclosure, we have also had two new 8″ reactive/absorption silencers installed to the unit to further minimise the exhaust noise from the machine. We really can’t believe the difference to the noise – we keep being asked why the baler isn’t running! Being a large scrap metal recycling plant, we aren’t ever going to be able to make ourselves silent, but we are keen to use the best practicable means to minimise noise as much as we can.

New soundproofing enclosure for A1's baler pA new business stream for Acoustic Enclosure Limited

Our director Sally Pike first came across Jim Shaw of Acoustic Enclosures Ltd back in the mid-00s when we were looking to have noise attenuation measures installed on our previous baler. Working on scrap metal machinery wasn’t something they had done before – their usual projects involved creating enclosures for industrial air conditioning units and generators. Ever the engineer, Jim took on the challenge and the results were fantastic. Lefort (the baler manufacturer) now recommend Acoustic Enclosure Ltd to other metal recycling plants across the country that also need noise dampening assistance.

The technical details for the engineering fans amongst you

For those of you that are interested in the finer details, below is a list of specifications we received from Acoustic Enclosures Ltd, we’ve also included the drawings of the enclosure as they look pretty epic!

  • The enclosure is 4400mm wide x 7145mm long x 5000mm high and constructed around a 3mm formed frame.
  • The panels for the enclosure are 2mm sheet folded into 100mm panels filled with glass tissue faced mineral wool retained with galvanised perforated steel.
  • The enclosure is completely demountable.
  • The enclosure is fitted with attenuators in front of the radiators and blast oil coolers. The attenuators are splitter silencers with 1200mm long splitters designed to meet 75dBA at 1m.
  • Each inlet attenuator is fitted with a flexible connector to prevent recirculation.
  • As the radiators and oil coolers are fitted with puller fans, and thus discharging air into the enclosure, it was necessary to fit outlet attenuators on the enclosure roof. Thus ensuring that heat within the enclosure would have an easy route to atmosphere whilst being driven by the pressure developed by the radiator and oil cooler fans.
  • The external aperture of each inlet attenuator is fitted with large blade weather louvres.
  • We have allowed for 3off personnel access doors into the enclosure for maintenance.
  • In order to meet the performance of 75dB(A) at 1m it was necessary to remove the existing exhaust silencers and fit new 8″ reactive/absorption silencers to each set. Due to heating concerns the exhaust silencers are mounted on the roof of the enclosure.
  • All steel components will be primed and powder coated for an outside environment.

Want to find out more?

For more details on the work carried out, contact Claire at the A1 Group ( or Jim of Accoustic Enclosures Ltd (


AutoDrain M

More News


ATF Professional LLP is registered in England and Wales with Partnership number OC418339

The views and opinions expressed on ATF Professional are solely those of the original authors and other contributors. These views and opinions do not necessarily represent those of the editor, publisher or staff of ATF Professional.



01432 355099

© All rights reserved

Owain Griffiths

Owain Griffiths

Head of Circular Economy at Volvo Cars

Owain joined Volvo Cars in June 2021 to lead Circular Economy in the Global Sustainability Team. The company has committed to being a circular business by 2040 and has financial, recycled content and CO2 based targets for 2025, all of which Owain is working across the company to make happen. Owain previously worked for circular economy consultancy Oakdene Hollins where he advised businesses on evidence led circular economy implementation. 

Turning into a circular business and the importance of vehicle reuse and recycling.

The presentation will cover the work Volvo Cars is doing to achieve 2025 but mainly focus on the transformational work towards 2040 and the business and value chain changes being considered. Attention will be paid to the way vehicles are being dealt with at the end of life and the complexities of closing material and component loops. Opportunities and challenges which Volvo Cars is facing will be presented including engagement with 3rd parties and increasing pressure from stakeholders.