How to soundproof industrial machines
Machine noise can often be a problem and the best way to deal with this is to cover the unit with a soundproof enclosure.
The enclosure itself needs to be fabricated from heavy materials to block the noise and an absorbent lining will improve things further by reducing the amount of reverberation build up inside the box.
Structural contact between the enclosure and the machine must be avoided otherwise the vibrations will be transmitted to the enclosure walls and re-radiated outside.
If the noise is structure-borne then vibration isolators can help but these will generally only reduce the low frequency components below around 100Hz from transmitting into the building.
This sort of enclosure may be constructed from something like steel or heavy timber.
Materials such as our Visco-elastic Damping Membrane VL-65 can be applied to vibrating surfaces to reduce the overall sound output.
The following diagrams show the design and effectiveness of various machine enclosures:
Larger machine enclosures
For larger machine enclosures or plant rooms it is more effective, and easier, to utilise steel perforated acoustic lining panels such as our AC50
These are easy to install, easy to cut and frame around openings using the supplied fixing trims. They provide for a ClassA acoustic absorption and are robust and fire rated.
In some situations a separate acoustic enclosure may be required. This may be to provide for a noise haven or control room for workers in a noisy environment or to house a single noisy machine.
As opposed to lining a large plant room with acoustic panels a more efficient solution may be our steel perforated AC80 panel system which is not only modular, but self contained and can incorporate acoustic windows, doors and silencers for ventilation.