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  • compressors

    I have a porter-cable pancake compressor it works fine but won't run a frame nailer and is way to loud for me. I was looking at the Ridgid oil lube twin stack but i heard 1 running and it's louder then the porter-cable i have. I was the local TSC store and they had a Iron horse 2.5 HP 4 gallon oil lube twin stack that runs at 1720 rpm whitch is half the speed of most small compressors. They had one ine the back that they use so I could hear it run it was so quiet you could stand 5 feet from it and talk in a normal voice and be heard. I think Ridgid should look into making there oil lube compressors run at 1720 rpm. Ridgid told me there compressor runs at 86-88 db the iron horse runs 78 db. For every increase of 3 db there is a 100% increase in sound energy.

  • #2
    Please try not to compare apples to oranges to mangos.

    IMHO, It is unfair to compare an aluminum pump to a cast iron pump and likewise those that have a simple foam intake filter instead of an actual filter canister will be considerably louder.
    Also, different types of motors make different amounts of noise. Those that are directly-coupled to the pump tend to be much louder (and also are usually rated at the higher speed) than the capacitor start motors that your typical belt-drive pumps run.
    If compressor noise is bugging you, why not extend your hose length and get it out away from you.
    Phil
    Tools Rule

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    • #3
      compressors

      The Iron horse compressor is cast iron. What I was getting at was Ridgid should look at this stlye of compressor Makita also makes a low rpm model that is very quite. I have a 50 foot hose but sometimes you can't get that far away from the compressor. Also in the winter I can't put it outside because it's to cold here.

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      • #4
        Thomas compressors have the slower type motor drive you describe, and they are pretty easy on the circuits too, you'll almost never trip a 15 amp breaker. They don't seem to mind running all day long on a skimpy extension cord. They even admit that in their advertising.

        A few years ago, a buddy of mine had an ITT compressor, and it had a sound about like an A/C compressor (or an A/C vacuum pump) - very quiet. Although it was expensive, it was almost unnoticeable while working at the other end of the hose.
        Phil
        Tools Rule

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        • #5
          I have a 5 HP Campbell Hausfeld Extreme Duty tank type compressor which is the quietest I have heard. With it running in my attached garage, my wife doesn't hear it in the kitchen which is only 8 feet away, and she has excellent hearing. It has a 3250 rpm motor but is a pulley drive, so the cast iron compressor runs at a significantly lower speed. Can be run on 110 or 220. It is rated at 15 amps (110v) but I have never had a problem with my 15 a breaker tripping. I do use a 12 ga extension cord when I need one, tho. It will definitely drive a framing nailer, (or a spray gun) even with 150' of hose, but the sucker is heavy (about 300 lbs)
          They make an extreme duty pancake type also, but it is a direct drive and I do not think it is as quiet, have not heard it in operation, and don't know the weight.
          HTHs
          Practicing at practical wood working

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          • #6
            compressors

            Thats Phil the iron horse only draws 11.5 amps and is very quiet. Also the price is very good i could buy 2 of them for the cost of the makita mac2400
            I'm sure the makita is better but i don't use this every day.

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