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Quiet Air Compressor

Discussion in 'Software, Computers, CMC's Techie Stuff' started by SportsDisplays, Nov 7, 2017.

  1. SportsDisplays

    SportsDisplays Grumbler in Training

    I bought a framing business a couple years ago and with it came the "quiet" air compressors to run the Wizard mat cutting machine along with the Fletcher Cornerpro. We don't have a retail store, but the noise from these two air compressors is starting to get to us and I have to think there are better options.

    I contacted Wizard and they mentioned Silent Aire, which seem better (40 db vs. 80 db currently). I was even thinking I could "split" from a single air compressor to run the mat cutter and underpinner from a single air compressor.

    I'm curious to know what others use? Especially people that have retail shops - there's no way you could have machines running this loud!?!? Anyone using Silent Aire have feedback? Other good options out there to reduce the noise as much as possible?
     
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  2. neilframer

    neilframer PFG, Picture Framing God

    We have a Silent Aire at work and it runs the Wizard, vnailer and the pneumatic hand tools.
    It is extremely quiet, you can barely hear it run.
    We are probably stressing it out using it to run everything.

    I have also used a Jun Air at a previous job and it is also very quiet but expensive.
    That Jun Air was stressed to run everything and it would shut down to cool off, so we split the air system and used the Jun Air just in the fitting area and we used a loud compressor in the back shop to run the saw and the vnailer.

    I also worked in a shop where we put the loud compressor in a closet and piped the air to the shop from the closet.
     
  3. SportsDisplays

    SportsDisplays Grumbler in Training

    Thanks for the reply! What model SilentAire are you running? We are looking at the Val-Air line.
     
  4. neilframer

    neilframer PFG, Picture Framing God

    I would have to look at it when I'm at work tomorrow.
    It's an older one.
    It doesn't have a large capacity tank which is why I say it might be a little stressed out trying to run everything.

    I will look at it tomorrow and give you the model #.

    What we have is similar to this one...
    Screen Shot 2017-11-06 at 10.20.56 PM.png

    The one you mentioned is a different line but it's similar and it has a finned head which can help dissipate heat and it looks to have oil and water filters included.
    Ours has the filters as well.
    Screen Shot 2017-11-06 at 10.23.25 PM.png
     
    Last edited: Nov 7, 2017
  5. Joe B

    Joe B SGF, Supreme Grumble Framer

    Neil is a Silent Aire fan and I'm a Jun Air fan. Jun Air was the first to do the silent compressor and, in my opinion and most dentist opinions, is the most dependable. Jun Air is what the majority of dentist use and in their offices is running 14 hours plus a day none stop. Silent Aire is a great machine, I'm not being negative about the Silent Aire and if I couldn't purchase a Jun Air for some reason Silent Aire would be my second choice.
    No mater what machine you purchase make sure there are a number of air filters on them. I have 3 filters and I drain them at least 1 time a week - generally I don't get any water out of the filters but I would rather be safe than sorry. A little water getting into the Wizard Head or, like me, the Valiani Head and you could be looking at a couple thousand dollar repair. Just a recommend - both with the compressor and with the filters.
     
  6. neilframer

    neilframer PFG, Picture Framing God

    Don't get me wrong, I'm a Jun Air fan as well.
    They are pretty expensive, but you get what you pay for.
    I used one for 14 years at a previous job before the owner retired.
    I then sold it for her to a shop in New York back in 2009 and for all I know, it's still going.;)

    The model that we had just couldn't run the saw, the pneumatic hand tools, the vnailer and when I would use the pneumatic double mitre saw to cut 100 metal frames without stopping, the compressor would stop to take a rest at some point.
    Some of the Jun Air compressors are not meant to run continuously and they need a rest period.
    Not a knock on the compressor.
    It's interesting that I believe that Silent Air and Jun Air are both made in Italy.
     
  7. Frances M.

    Frances M. CGF II, Certified Grumble Framer Level 2

    I have loved my AMS silent compressors, which I think are made by Silent Air. The only problem is that when there is a problem there is no one local to me who works on compressors anymore. I took one to Atlanta to be worked on when it developed a problem and spent money for no repair, basically. I have had good communication with AMS and the parts needed to fix but I am not mechanically inclined and keep putting it off. In the interim I bought the cheap "almost silent" California compressor from Home Depot and am very happy with it. Noise level is very acceptable, no oil to fool with - I'm probably just going to stay with that one.
     
  8. SportsDisplays

    SportsDisplays Grumbler in Training

    I appreciate all the responses, you guys are very helpful!

    Stupid question... The air compressors that we currently use for the mat cutter and underpinner are 20 and 25 gallons, so does this mean if we buy one of these "quiet" units they'll stay on the entire time since they are only 4 or 6 gallons?
     
  9. David Waldmann

    David Waldmann SGF, Supreme Grumble Framer

    I'm afraid the standard answer applies here - "it depends".
     
  10. Dirk

    Dirk CGF II, Certified Grumble Framer Level 2

    Look for two specifications on any air compressor you intend to buy: SCFM and duty cycle.
    SCFM, or Standard Cubic Feet per Minute indicates the volume of air the machine can produce. Often, it will be stated at several pressures, such as 8 scfm at 40 psi and 5 scfm at 100 psi.
    Duty cycle is typically stated as the number of minutes the compressor can run in a ten minute period. For instance, a 50% duty cycle means you should avoid running more than five minutes out of ten. (A 50% duty cycle means you need twice the nominal scfm to attain the desired volume.)
    The tank is added to smooth the variations in demand. A larger tank will allow less pressure drop when you engage in short bursts of activity. However, when the pressure does drop, it will take longer for the compressor to build the pressure back up to your operating pressure. (Initial startup will also be longer with a bigger tank.)
    It's more difficult to estimate the volume of air you need for the tools you run. Air tools should have specs available, heavy on the should. Much will depend on the rate at which you use the tools. The fine folks at Wizard can help with an estimate of SCFM. The underpinner's requirement will be directly related to how rapidly you can move from corner to corner. Fletcher should be able to give you an estimate of scfm per cycle. Should.
    On either machine, attempting to operate with inadequate pressure will cause problems - the mat clamp will fail to hold the mat or the vnail will stick out the back of the frame. Unless you plan to spend time watching the gauges, you won't have any warning, so, after you add up the scfm for the tools, err on the side of too much capacity rather than too little.
    The calculation gets trickier when the tools operate at significantly different pressures. It's likely, though, that your tools will require similar pressure to what is specified on the compressor, so you won't need to convert cfm values to scfm.
     
  11. David Waldmann

    David Waldmann SGF, Supreme Grumble Framer

    While I do agree 100%, I will offer a money-back guaranty that you will always have better success with a larger tank than a smaller one.
     
  12. Larry Peterson

    Larry Peterson PFG, Picture Framing God

    Ditto that. I went from a pancake compressor to a 30 gallon whole shop compressor running my vnailer, pneumatic point driver, carton stapler, 2 air hoses and various other riffraff.

    The pancake just ran the vnailer, but after I got the 30 gal, things just magically got added and the compressor still runs a lot less than the pancake did. Good thing I didn't get a 60gal. Who knows what other goodies I would have added.
     
  13. SportsDisplays

    SportsDisplays Grumbler in Training

    Thank you for this detail, that is very helpful! I did contact Wizard and Fletcher. According to Wizard they need 1 cfm and the Fletcher underpinner said 2 cfm.
     
  14. SportsDisplays

    SportsDisplays Grumbler in Training

    David, was your 30 gallon compressor a "silent" unit, or did you trade the increase capacity for the loud unit?
     
  15. David Waldmann

    David Waldmann SGF, Supreme Grumble Framer

    FWIW, we did nothing but add a bare tank to our system and found a huge increase in usability. We had (2) 30 gallon tanks and added (1) 400. It was like getting an extra compressor at 1/4 the price.
     
  16. Mike Labbe

    Mike Labbe Member, Former moderator team volunteer

    We have the AMS CM50, which is a (painted blue) and rebadged Sil-Air 50-24 model. (I confirmed this with the manufacturer) Ours looks exactly like this, but is blue and has a cooling fan added. We got it about a decade ago and it has been trouble free.

    [​IMG]

    http://www.artmaterialsservice.com/catalog/mainWorkstationsAndTools-AirSupplies-Compressors.htm They're also sold through DonMar and other local distributors.

    It painlessly runs our vnailer, fitting table tools, and Wizard 8000. It is about as loud as a refrigerator and could easily be right under the front counter while working with a customer. It's THAT quiet. (ours is in the basement)
     
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