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Ultra Quiet Air Compressor: It’s for real!

Joined
Feb 25, 2023
Messages
97
Likes
413
Location
Louisville, KY
My old compressor is a Stanley Bostitch 6 gallon pancake. I just bought a California Air 8 gallon. Side by side, using a Galaxy Checkmate SPL meter, the old one runs about 93 dB while the new one is about 71 dB. Their advertising claims 60 dB. I'm not surprised that I measure higher than that, but can absolutely live with 70 while ear protection isn't optional at 93.

Releasing the pressure when done is equally loud - enough to grab ear muffs, but that's just cleanup, not something recurring while working.
I'll have to measure the dB on mine! When I'm standing at the lathe (about 6 feet away), I'm guessing it's close to 60. I'll check next time I'm out there.
 
Joined
Feb 21, 2011
Messages
343
Likes
303
Location
Elkhart, IN
Website
www.riccsdesigns.com
My old compressor is a Stanley Bostitch 6 gallon pancake. I just bought a California Air 8 gallon. Side by side, using a Galaxy Checkmate SPL meter, the old one runs about 93 dB while the new one is about 71 dB. Their advertising claims 60 dB. I'm not surprised that I measure higher than that, but can absolutely live with 70 while ear protection isn't optional at 93.

Releasing the pressure when done is equally loud - enough to grab ear muffs, but that's just cleanup, not something recurring while working.
Carl, if you didn't see my comments earlier in this discussion take a look when you have a moment. The CAT decibel ratings are measured at 20ft distance according to their tech support when I called. I bought a "ultra quiet" Menards unit that was supposed to be 67db. Returned it becasue it was too loud at 88db. But out of curiosity after talking to the CAT guy, I was able to test the same Menards unit at a neighbor's house and even at 20ft it was 85db.
 
Joined
Aug 8, 2018
Messages
16
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11
Location
Hainesville, IL
Carl, if you didn't see my comments earlier in this discussion take a look when you have a moment. The CAT decibel ratings are measured at 20ft distance according to their tech support when I called. I bought a "ultra quiet" Menards unit that was supposed to be 67db. Returned it becasue it was too loud at 88db. But out of curiosity after talking to the CAT guy, I was able to test the same Menards unit at a neighbor's house and even at 20ft it was 85db.
I did miss that. I figured I was closer then they were, but was mostly interested in the difference between the two - and whether I could stand next to it without ear protection.

20ft is a pretty good distance, I'm never going to be that far. But out of curiosity, I've measured off 20' and got 53 db. Of course, there are a lot of variables that go into that. However we measure, it's nice to have something that isn't painfully loud.

I just noticed your location. I went to Concord, my father taught at Central.
 

hockenbery

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Apr 27, 2004
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Location
Lakeland, Florida
Website
www.hockenberywoodturning.com
My biggest surprise when I got a 60 gal Quincy about 10 years ago was how quiet it was.

measure it with my Apple Watch
79&80 db. right at the compress

67 db at my blast cabinet about 15 feet away. Lathes are further away.

the spec from the northern tool says 80 db.

Opening any bleed valve spikes the noise level well into the danger zone
 
Joined
Feb 25, 2023
Messages
97
Likes
413
Location
Louisville, KY
This got me curious, so I just went out and checked. I’m getting 65 at the lathe (5 ft away) and 71 right at the compressor. A HUGE difference from my last one which was at 93 from 8 feet away.
 
Joined
Sep 2, 2017
Messages
158
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73
Location
Sterling, CT
I have a 60 gallon Porter Cable compressor and at 10' my sound level meter says it'e 84.6 DbA and at 20' (which is where I'm standing when at my lathe) it reads 82.2 DbA.
 
Joined
Jul 24, 2008
Messages
721
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194
Location
Montfort, Wisconsin
Said company says it has over 2000 authorized service centers yet I'm unable to find a listing of them. Am I missing something obvious again? Periodic service and repairs can be needed to extend the life of your tool, that is why we provide a network of 2000 Authorized Independent Service Centers.
 
Joined
Jan 29, 2018
Messages
3
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43
Location
Pittsburgh, PA
I recently upgraded from a pancake to a California Air Tools. It's amazing how much more quiet it is. Decibels are logarithmic, so ten decibels is a much bigger difference than you might think
 
Joined
Feb 28, 2021
Messages
1,374
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1,211
Location
Roulette, PA
Website
www.reallyruralwoodworks.com
Said company says it has over 2000 authorized service centers yet I'm unable to find a listing of them. Am I missing something obvious again? Periodic service and repairs can be needed to extend the life of your tool, that is why we provide a network of 2000 Authorized Independent Service Centers.
If they are like Homelite/Ridgid/Ryobi/TTI/Milwaukee then you'd have to call the company's 1-800 number and give them your zip code for a referral to nearest service center, they otherwise don't have a listing online, except maybe as an out of date afterthought.
 
Joined
Dec 9, 2018
Messages
60
Likes
62
Location
Ottawa, Ontario
Yes, this threat also cost me the price of a new (ultra quiet) air compressor, but I am very happy I did this. I went for a little (1 gallon) unit because it is dedicated to my lathe and is all I need for that (I got the CAT 1P1060SP). It is very quiet, non-startling and happily it has a good regulator that allows me to turn the outlet pressure down to a level that doesn't blow everything into my face and all over the room.
 
Joined
Apr 12, 2022
Messages
73
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24
Location
Papamoa Beach, New Zealand
Re loud compressors I built one using an old fridge motor and an old LPG 4.5 Kg bottle its under my bench and no more noise than when the fridge is running in the house it pumps up quickly and will pump up to what ever you want. You must put in a regulator or you will not stop it working and building pressure cost a bit of time. Mine is set too 120 psi, look on you tube if you want to build one by the way I used a tyre valve for a non return valve.
Cheers Mike
 

Bill Boehme

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Jan 27, 2005
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Location
Dalworthington Gardens, TX
Website
pbase.com
Re loud compressors I built one using an old fridge motor and an old LPG 4.5 Kg bottle its under my bench and no more noise than when the fridge is running in the house it pumps up quickly and will pump up to what ever you want. You must put in a regulator or you will not stop it working and building pressure cost a bit of time. Mine is set too 120 psi, look on you tube if you want to build one by the way I used a tyre valve for a non return valve.
Cheers Mike

In addition to the 120 PSI cutoff regulator for the tank, it would be a good idea also to use a pressure regulator valve set to 90 PSI for the tank output to your air tools (most of them are designed to operate at 90 PSI max for maximum output). An automatic drain valve would also be nice if you don't always remember to bleed the water from the tank.
 
Joined
Jan 3, 2021
Messages
465
Likes
618
Location
Spartanburg, SC
Website
www.turning4home.com
Well, my old Craftsman compressor that was louder than the front row at a Who concert finally died (thank God!). So I just got the Amazon special California Air Tools 8010

Frankly, I am really impressed by the build quality and sturdiness for the money, and it's all I'll ever need for my small shop. And yes, it's very quiet, especially after that old Craftsman that shattered my nerves every time it kicked on.
 
Joined
Feb 18, 2023
Messages
963
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2,536
Location
Orange, CA
Well, my old Craftsman compressor that was louder than the front row at a Who concert finally died (thank God!). So I just got the Amazon special California Air Tools 8010

Frankly, I am really impressed by the build quality and sturdiness for the money, and it's all I'll ever need for my small shop. And yes, it's very quiet, especially after that old Craftsman that shattered my nerves every time it kicked on.
Great price, too. What accessories do you need to get going?
 

john lucas

AAW Forum Expert
Joined
Apr 26, 2004
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Location
Cookeville, TN
I have no idea what compressor Binh Pho had for our class but it ran 6 air brushes and you could barely hear it staning 6 feet away.
 
Joined
Jan 3, 2021
Messages
465
Likes
618
Location
Spartanburg, SC
Website
www.turning4home.com
Great price, too. What accessories do you need to get going?
Alan-None other than what I already had, really. I put on the wheels and the air filter, and just put the hose from my old unit into the universal connector, and was up and running in minutes. About all I do with one is blow things out and pump up the occasional flat tire, so I don't know what is required to run air tools.
 
Joined
Dec 28, 2019
Messages
525
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623
Location
Tallahassee, FL
My beloved (well liked) 1 gallon Eagle Silent Series compressor died this week so I decided to take the opportunity to upgrade to a California Tool one after reading all the endorsements here. I picked up a California Tool 2 gallon ultra quiet one and while it is quiet 71 dB at 6 feet it's not a quiet as my 1 gallon Eagle. I look forward to putting it through it's paces.
 
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