Portable Air Compressor

 
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Old 09-16-2012, 09:40 AM   #1
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Portable Air Compressor


I'm looking for a portable 210 CFM 150 PSI compressor, what are the key questions I should be asking while shopping for a used compressor? What are the do's and dont's pros and cons of buying a used unit.
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Old 09-16-2012, 10:41 AM   #2
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Re: Portable Air Compressor


Make sure that the tank isn't rusted out from lack of draining.
That it pumps up.
That the relay turns the compressor off when it pumps up.
That it doesn't leak air.

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Old 09-16-2012, 10:43 AM   #3
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Re: Portable Air Compressor


Try it out and make sure that it kicks back in at a pressure that lets your tools keep running.
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Old 09-16-2012, 10:47 AM   #4
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Re: Portable Air Compressor


Thanks bud , what do you mean by "let it kick back in at pressure" ?
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Old 09-16-2012, 11:36 AM   #5
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Re: Portable Air Compressor


Compressors have a pressure switch that truns then back on. When the tank pressure gets below a preset amount it turns on to get the pressure back up to another preset number. It's a common part to break causing the compressor to get up to pressure when it turned on and then not recover the lost pressure
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Old 09-16-2012, 12:10 PM   #6
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Re: Portable Air Compressor


You run a media blasting company and are asking for help buying an air compressor. Really? What have you been doing prior to this, throwing handfuls of sand?
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Old 09-16-2012, 12:29 PM   #7
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Re: Portable Air Compressor


Quote:
Originally Posted by schaefercs View Post
You run a media blasting company and are asking for help buying an air compressor. Really? What have you been doing prior to this, throwing handfuls of sand?

Now that's not nice, - - although it's a good question . . .

.
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Old 09-16-2012, 01:13 PM   #8
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Re: Portable Air Compressor


Pressure switches can be replaced along with the guages and manifold.

You can get a square D switch for 40 bucks...

Make sure the thing pumps air to begin with.

Make sure the tanks dry

Let it shut off at the set psi then pull the safety release and make sure it kicks back on.

If its crank model check the oil, make sure its full and not jet black.

Check the belts
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Old 09-16-2012, 04:28 PM   #9
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Re: Portable Air Compressor


A 210 CFM compressor has no tank. it is used for jack hammers usually or blasters. As far as I know at least
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Old 09-16-2012, 09:49 PM   #10
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Re: Portable Air Compressor


Quote:
Originally Posted by rrk View Post
A 210 CFM compressor has no tank. it is used for jack hammers usually or blasters. As far as I know at least
I was gonna say....I don't think we are talking about you hand carry type compressors.
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Old 09-16-2012, 10:22 PM   #11
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Re: Portable Air Compressor


Quote:
Originally Posted by TBFGhost

I was gonna say....I don't think we are talking about you hand carry type compressors.
But my makita has 4.2 cfm, just get a bunch of them. Bet they'd even give a bulk discount...

Have only used the big compressors a couple times and they were rentals. Wouldn't it be just like any other petrol machine?
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Old 09-18-2012, 04:18 PM   #12
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Re: Portable Air Compressor


Well I made a lot of progress since my last post lots of phone calls about 50 of them up and down the east coast, I finally got linked up with a gentleman by the name of Nathan w/ Ring Power out of Tamp he seems to really know his **** only time will tell. Nathan initially recommended a Sullair 2012 200 cfm 150 PSI but after telling him a little bit about my business he felt I would be better off with 260 CFM 150 psi..reason being I would lose 30 cfm on the 200 do to the air traveling through the air dryer/ filter which will take away from the cfm and psi. I was told if your looking for an air dryer consult with the manufacture who sold you the compressor they will know more about air dryer filter thats best for your compressor. I hope this information helps someone complete a task

No hatas please just fellow trades men who share the same dream passion and visions passing good information... thanks guys for all your input it's greatly apreciated I wish you all the best in family health wealth god bless.
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Old 09-20-2012, 07:30 AM   #13
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Re: Portable Air Compressor


Quote:
Originally Posted by Mass Soda Blast View Post
initially recommended a Sullair 2012 200 cfm 150 PSI but after telling him a little bit about my business he felt I would be better off with 260 CFM 150 psi.
If you're looking into soda blasting, that's high volume, low psi, so no need to go overboard in psi ratings. And you will need good air, so air dryers are good, but they are expensive. Most soda pots come with a little moisture separator. Sullair's nickname is "soiled air", ymmv.

If you're just starting, I'd get the pot and rent the air until you get the business figured out. The only downside of that is in the fall, landscapers rent most of them to blow out sprinkler lines in preparation for winter.

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