Noisy Air Compressor Fix???

Which model did you buy ..How Much $$

 

Naturally. Those buses have been associated with peace for decades.

 

The Representative who installed my Eaton compressor told me that the way to quiet it down considerably was to route the air intake out of the area. Since mine has 3 air intakes I would probably need to make some sort of a manifold to do this, but haven't done it yet. My compressor isn't objectionably loud. My neighbor has an oil less compressor in his barn and I can hear it running when I'm in my house with his barn doors/windows closed and my house windows closed.

 

According to a smartphone decibel app ( unsure of accuracy but on a relative basis ) my compressor ran at 142 decibels. Deafening and hearing damage zone.
I installed a round walker car muffler on the intake. I used a 1.5" conduit elbow & made a adapter to mount it to the compressor head. Mounted a filter on the end of it.
Ran the decibel app again and dropped it to 65 .
Majority of the noise comes from the intake.

That insulated box is going to cause trouble.

 

Is the intake a big pipe thread? If so There are some very effective silencers available. Basically needs to be big volume ( 10 X piston displacement ) to soften the intake pulses fed by a tube/port leading from atmosphere .

https://encrypted-tbn0.gstatic.com/...j_jzBknzgFkLtNEU8Q12sm9FKTULWz9r6qjlPyBvDNzBj

 

Or you can buy a used Quincy. I picked mine up for a couple hundred. It's a 1942 308 and you can stand right next to it wile on the phone if needed. It's about 15 cfm at 90 psi and is a continuous duty pump and is ran off of a 2hp motor so it don't take much power to run. Mine is mounted next to my a/c unit outside and the a/c is louder.

 

Another reason to put it in a safe enclosure or outside is the threat of explosion....
A rusty tank or a sticky cutout switch is all it takes....


Not super common- but a catastrophic event if it happens at your shop..
It really needs to be enclosed more for that reason than noise.
I saw a 20 gallon /small one blow one time and it was like a dynomite sounding explosing and it blew the 10 by 10 heavy sliding door and the compressor pump completely across the street as a result....so a 60 or 80 gallon bomb would be unreal I am sure....