Noise control is an important issue to manage. Not only from a regulatory standpoint or risk of workers compensation claims, but for the health and happiness of your people and the wider community.

According to Work Health & Safety Perceptions Manufacturing Industry Report, noise has been reported to be the second most common hazard exposure (58%) while the most common exposure reported by manufacturing workers was exposure to airborne hazards (64%). A typical comfort noise level is 60 dB(A). Documents published by the “Environment Protection Authority” detail the acceptable and recommended maximum industrial noise level dB(A) during day, evening and night as follows: Click here to see the table/data.

Whilst most modern machinery is supplied with some form of acoustic control. There are significant opportunities to apply additional strategies with beneficial outcomes. Our expertise covers  the feasibility, design, manufacture and installation of acoustic performance improvements for fans, turbines, compressors, blowers, vent silencers for gasses and steam installations. Previously known as Accord Acoustics Cmac offers:

  • QUALITY – Results focused with over 50 years’ experience backed by ISO 9001:2015 Quality certification.

  • SHORT LEAD TIMES – We have an in house Sydney based manufacturing facility committed to quick responses.

  • TAILORED END TO END SOLUTIONS– All our products are engineered specifically to your application and working conditions with our support from initial measurement and engineering to final installation and verification.

I have a noise problem. What can I do?/what do I need to know?

1. Obtain the noise level of your equipment in db or request an acoustic engineer to visit your site and get measurements.
2. The amount of reduction desired or the noise target at a specific location relative to the noise source e.g.  85 dBA at 1 metre directly in front of fan outlet and/or inlet.
3. Maximum allowable pressure drop. The difference in pressure between any two points in a gas flow.
4. The air flow properties - flow rate, density, temperature, etc.
5. Available space and geometry and orientation of connections. Size and type of connections and hole pattern required.
6. Environmental conditions for material and finish of silencer.