Improving Sound Damping in Air Compressors

Posted on

In their use in household appliances, industrial machinery, air conditioning systems, and healthcare applications, it is inevitable that control of noise and vibration is kept in check in air compressors.

With the prolonged operation, air compressors can start producing noise, at high levels at times. However, much of the noise can be reduced and even eliminated with sound dampening techniques. Noise levels are affected by different aspects around the compressor room, including the size of the room to materials of ceilings and walls.

Such aspects can contribute to dampening of the sound and vibration of individual pieces inside equipment like Kaeser air compressors.

Sound Proofing Material

Soundproofing material features an Sound Transmission Class (STC) rating, translating how well the material dampens airborne sound. The actual measure of sound dampening can vary based on sound frequency. Material such as an elastomeric glue or sheets of rubber can be used to reduce the amount of vibration transmitted through the wall.

The connections to wood studs can be dampened this way which results in fewer vibrations from the wood studs being sent back into the room from the other side of the wall.

Rubber Isolation Pads

Noise may be coming from vibrations from the air compressor, which actually intensify the sound and make the compressor louder than it needs to be. Use rubber isolation pads to suppress vibrations and stop them from reaching the surface.

Separate Room

Have the air compressor run in its own room. A room can be built for the air compressor to reduce noise levels. Acoustic absorption materials can be added to pre-existing surfaces such as walls, floors or ceilings.

Sound Blankets

The soundproof enclosure can reduce the noise up to a certain level but may not be as much effective. Sound can be reduced further with the use of sound blankets, which reduce the noise by absorbing the high and mid-range frequencies.

Sound blankets are draped across walls within an area that contains a compressor. Sound blankets are being used in home recording studios and band rehearsal spaces to absorb sound amplifications and block other parts of the house from the noise.

The sound blanket can be used to reduce noise from the noisiest part of air compressor--the piston cylinder. It can be placed inside of a two-sided enclosure consisting of two walls hinged together at a 45-degree angle.

Proper Maintenance

As air compressor working mechanisms are put through the motions, over time, certain parts can gradually wear out and grind. This calls for keeping the compressor's busiest parts maintained on a regular basis.