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Our crew has a lot of small compressors for finish carpentry, but none are big enough by them selves for spraying . After some searching here and around, I got to reading an article on the JLC web site about hooking compresors together. The author rigged some fittings so one “down-stream” compressor fed into a fitting out side of the “up-stream” compressor and then to a tool. One did NOT feed into the tank of another. He set the down stream compressor to kick on and off at lower pressures. It seems that this set up is essentially two compressors pushing into the same hose or paralell. He claims this helped with multiple framing guns.
Does anyone out there have any comments? Is there really a concern for same or different pressures on the compressors? For nailing somtimes we just set up two of our small compressors but for spraying it would be nice to create one big happy compressor.
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Ross,
I'd buy one big compressor for spraying paint if I were you.
Ed. Williams
*Ross, I've often thought about doing this, and I think it would work quite well. As far as "upstream" or "downstream" goes, I don't think it makes much differance. It all goes into a common resevoir. It would be tough to get two compressors in sync, so one will naturally come on before the other. When the air demand is lower, only one comes on. When air demand is high, pressure will continue to drop, even when the first compressor kicks on, and then the second compressor kicks in.All-in-all, I think it would be a good method to try, Give it a go, and let us know how it works.John
*Hooking several compressors together works just fine. I have two three hp. compressors and hook them up in tandem to sandblast. Also one of my hvlp spray guns uses a lot of air so for that situation I run them both.
*Hello guys:Thank you for your comments. This all sounds pretty straight forward. I guess I just wanted to hear from someone else who had done this and lived to tell about it. By the way the JLC article can be found at jlconline.com/jlc/archive/tools/compressor/page3.htmlThanks again.
*which fence:Biesemeyer or Unifence; please help.
*Todd, You need to start a new thread on your topic. You will get more responses. Just click on Post Message and create your thread.
*I have two 20 gal compressors. One has a T with two female ends, so i can use a paint sprayer on one hose and the blow gun on the other. For sandblasting, i use a short hose with two male ends between the compressors, then take air off the other side of the T. The younger compressor tends to shut off just a bit sooner than the old geezer, of course, but i am able to sandblast non-stop for glass etching and cleaning parts. It's a little noisy... ;-)
*In industrial settings it is common to have several air compressors (up to 100hp each) feed into one vessel. I would feed both compressors into a single accumulator tank, and then to your tool.
*Haven't seen that, but I have seen cascade storage systems (several storage tanks in series, each with check-valves so the air can't reverse - they can be serviced by one or many compressors provide each compressor is isolated by a check-valve. PS, unless the second compressor is especially made to accept a high-pressure feed, the only practical (if you can call it that) way to put two equal compressors in series have them actually do anything is to put the entire second compressor into the high-pressure environment created by the first compressor (e.g. like putting the second compressor inside of the storage tank for the first one).
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Our crew has a lot of small compressors for finish carpentry, but none are big enough by them selves for spraying . After some searching here and around, I got to reading an article on the JLC web site about hooking compresors together. The author rigged some fittings so one "down-stream" compressor fed into a fitting out side of the "up-stream" compressor and then to a tool. One did NOT feed into the tank of another. He set the down stream compressor to kick on and off at lower pressures. It seems that this set up is essentially two compressors pushing into the same hose or paralell. He claims this helped with multiple framing guns.
Does anyone out there have any comments? Is there really a concern for same or different pressures on the compressors? For nailing somtimes we just set up two of our small compressors but for spraying it would be nice to create one big happy compressor.