Author Topic: Soundproofing shop dust collector motor  (Read 3062 times)

kennyl1955

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Soundproofing shop dust collector motor
« on: August 22, 2012, 02:17:52 PM »
We're manufacturing a new type of coffee roaster. Inside the metal cabinet is the equivalent of a 1 to 1.5 hp dust collector motor, and another vacuum motor. We have room to install 1" to 1.5" soundproofing material. Does anyone have a solution for this type of noise?

Randy S

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Re: Soundproofing shop dust collector motor
« Reply #1 on: August 22, 2012, 05:27:01 PM »
Glue this product to the inside the metal cabinet full coverage with adhesive.
Tightly glue material in corners or caulk and tape.

http://www.supersoundproofingsales.com/Foam-Mat/products/17/
Now has adhesive backing!
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

kennyl1955

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Re: Soundproofing shop dust collector motor
« Reply #2 on: August 22, 2012, 06:52:31 PM »
Thanks Randy. Does the product have a sound reduction rating? I'm not sure how to read the performance data. It looks like it would be easy to work with. Maybe we should just order a sample and try it on a roaster. The blower we are using is about 70 decibels. Same as a shop vac. We need to reduce the sound to make it acceptable for coffee shop indoor use.

Randy S

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Re: Soundproofing shop dust collector motor
« Reply #3 on: August 22, 2012, 07:01:40 PM »
The barrier alone carries an STC rating of 26, the composite has performed so well we have not tested it.
The foam that is bonded to it is also rated at STC 25 .

we feel this material composite is our best product.
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

DabneyWalker

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Re: Soundproofing shop dust collector motor
« Reply #4 on: September 12, 2012, 02:58:56 AM »
Hello friends,

Without knowing your setup its a little hard to make specific recommendations. One good way is to build a double wall enclosure made of heavy dead materials on both sides that aren’t touching each other, or touching each other minimally. There is a neat trick in house construction where you place the 2×4 studs every 8” instead of 16” and then offset every other stud an inch or so the first stud is supporting the inside wall and the next stud is supporting the outside wall etc. The acoustic path of least resistance in this modified wall is from the equipment to the sheet rock to the void space to the other layer of sheet rock to the new room every time you go from high dense material to low density a lot of energy is lost. In normal construction the stud bridges the void space. which has a much lower resistance. Heavy layers are preferred in this scenario because they absorb a lot of energy in themselves. Note you don’t want anything that will naturally resonate at an audible frequency so stay away from metals.

Thanks and Regards :)

 

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