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Old 11-21-2009, 01:58 AM   #1
snakyjake
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Default Air Compressor: V vs. Inline

In my consideration for a 60 gal air compressor, I've noticed different pump configurations: V-Twin and Inline Twin.

Are there any pros/cons?

Trying to narrow the choices:
  • Puma PK6060V
  • Campbell Hausfeld VT6275
  • Chicago Pneumatic RCP-3561V
  • Ingersoll Rand SS3L3

There doesn't seem to be much information regarding pros/cons of the above choices. So I'm trying to find a good tie-breaker.

Thank you,

Jake
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Old 11-21-2009, 02:32 AM   #2
tonydanzah
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Default Re: Air Compressor: V vs. Inline

v twin all the way, love the sound it makes. also if it is a single stage, both cylinder should have better even cooling
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Old 11-21-2009, 11:50 AM   #3
snakyjake
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Default Re: Air Compressor: V vs. Inline

Is the sound more quiet?
Does it run at lower RPM's?

Using some logic, if the V is better, then why don't I see the design on more pumps within the same compressor class? Puma and Porter Cable are the only ones I've seen (within the same class). If it was better, I would reckon that Ingersoll Rand would be using the pump design too.
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Old 11-21-2009, 03:50 PM   #4
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Default Re: Air Compressor: V vs. Inline

as far decibal level i'm not totally sure? I know they CH 60gal vtwin tank i bought for 400 new is relativly quiet, can stand next to and talk. Im not sure on the duty cycle, but the IR tanks are normally 100 duty for lots of hours. I 95% of the time have enough air for most but every once in a while 11cfm at 90 is not enough. I plan on upgrading to a 3 cylinder pump which eaton says is quiter(3 smalled pistons running slower. http://www.eatoncompressor.com/catal...643/184117.htm And puts out 4 more cfm at 90psi. They say in the article most cheaper 5hp motors will burn out running constatlyt and should be replaced or put a smaller puller if it will be used extensively. I most likely will not do this as I maybe only use the compressor for 20-25 minute continous at most. Unless you are running a shop out of your garage with multiple people using air most should be fine. As far the inline design, i think it would be better for longevity of the pistons as the load on the piston is pretty well spread out. Where as the v twin has wear more on one side. At a greenhouse I worked out had a larger vtwin pump compressor that I asked about and it had been rebuild once in 40yrs. Its run almost 8-12hrs constantly every day as it the air source for the soil conveyors.

Last edited by tonydanzah; 11-21-2009 at 03:54 PM.
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Old 11-21-2009, 03:58 PM   #5
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Default Re: Air Compressor: V vs. Inline

the unit i have
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Old 11-23-2009, 09:10 AM   #6
benjamming
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Default Re: Air Compressor: V vs. Inline

tony,

I wouldn't put much stock into what Eaton says on their website. They are more like an infomercial.
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Old 11-23-2009, 10:32 AM   #7
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Default Re: Air Compressor: V vs. Inline

It's pretty simple.

Inline pumps are smoother and shake less, but they run warmer.

V-Twin pumps shake the tank a bit more and are noisier, but keeping the cylinders apart from each other helps with cooling and the efficiency of the pump.
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Old 11-23-2009, 04:32 PM   #8
wineslob
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Default Re: Air Compressor: V vs. Inline

In a "V" design you can also run bigger cylinders (within reason) in a small(er) foot print.
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