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How does Champion cenurion make 19cfm at 125psi/

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jonjon1

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Mar 11, 2015
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OK, so I have been playing with compressors today, and a friend of my brothers was over here hanging out with us, he said he has a champion compressor
5HP, 19.1cfm at 125 psi only draws 22amps??? SO I was like "not possible 19.1 at 125 thats like 6.5 hp not 5hp, and at 22 amps, you arent 5 hp you are like 4.5hp", so we looked it up and sure enough thats what it says...

How is that possible? My baldor/quincy pulls 28amps+ and is rated at 17.7 at 90psi??? What is champion doing different? Does that $1700 compressor actually make that much air?

I am curious, I always thought the 5hp quincy to be about the best all around home compressor for the money, BUT if the champion does what they advertise, it is definitely something to look at..

thanks guys..
 
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sublimate

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Quincy 5hp compressors are rated at 17.2 @ 175psi, if yours is 17.7 @ 90psi is it a 3hp?

I haven't seen specs at those lower pressures, but I suspect it's similar to the Champion.
 
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MacMcMacmac

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Take all marketing claims with a huge grain of salt. The only way to see for sure is if you have both side by side starting at the same time and measuring time to cut out at the same pressure. No one has a revolutionary idea in making air from a reciprocating compressor that's going to let them make a ton more air than the next company with the same horsepower. The only time I saw one compressor make significantly more air than another of the same spec was when I and another tech built up identical 5hp units using pumps from the same company, except his was single stage and mine was a two stage. His bet mine to 100psi, but once the pressure was raised, it would have been a different story as single stage compressors become quite inefficient at higher pressures.
 
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redmondjp

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It takes less energy to produce the same flow at a lower pressure. Those numbers don't sound that far off to me.

Now, here is something else to consider - the duty cycle. This is another huge difference between consumer-grade (10-25% duty cycle) and true industrial compressors (100% duty cycle).
 
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matt_i

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The difference is this: if you're comparing "horsepower numbers" as a sales spec then there's bound to be variability. If you intend to actually use as much air as the compressor can deliver regularly...sandblast cabinet or big turbine air tools, you will want something more seriously designed to deal with the heat that's generated. Also you will need a serious bank account. Running a large air tool takes every bit of a 5hp electric motor, whereas the same tool running electric motor <1hp. Its not very efficient.

I thought I bought a hell of an air compressor ~20 years ago, IR T-30. Then I bought a Quincy for a plant where I worked. At least 50% bigger casting on the pump. Just massive. Then, we installed it, and let it run 2 weeks straight, the pump ran 95% of 24x7 on-time hours running a critical system while the plant air pressure was down for holiday break. I was sold, in case I ever have to get another in this lifetime.
 
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jonjon1

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redmondjp said:
It takes less energy to produce the same flow at a lower pressure. Those numbers don't sound that far off to me.

Now, here is something else to consider - the duty cycle. This is another huge difference between consumer-grade (10-25% duty cycle) and true industrial compressors (100% duty cycle).
Click to expand...


They are at the same pressure.

SO the quincy pulls 28a & makes 17.7cfm @90psi
The champion pulls 22a & makes 19.1cfm @100psi

Does anyone own the champion that can they verify these numbers? I know 17 sounds about right for the quincy. I am just surprised that at 10% more pressure with 20% less amps the champion can make $8% more air?!?!?!?

When it comes to compressors I am always trying to get the best deal, at the shop we have 5 units. And them are not going to be my responsibility much longer (sale is final very shortly), and over the years we have gone through a few units, in hindsight I should have bought 2 3 phase 15hp variable speed atlas copco rotary screws, with a drier and reg in each room, but I started with 1 5hp compressor and grew from there, never wanting to throw what I already bought away... PLUS, that setup would have cost me $30K, lol...

For the business I am not supposed to build my own equipment (with out a field specific engineer), they are supposed to be packaged units, which makes sense when it comes to say a "BAND SAW" or "Wood chipper", but I am not sure how a compressor is going to hurt someone 20 feet away (I am sure its possible, BUT)...

I think the best buy for a compressor, even though their quality has supposedly gone down, is the IR 7.5 t30, you can get the unit for $2000 and it makes air, plus I have 3 of them and they just work, a bit louder than my quincy, but for the price the quincy is the same thing but makes 7 cfm less (I have measured that one, the IR is good for 24cfm at 90)..
I had one incident with an ir 75, and that was one of my guys squashed it with a fork lift, it was very damaged and the motor was all busted up as was the starter, my brother took the compressor, straightened it all out and put a lower speed 5 hp motor on it (it was an odd motor we had from another machine, it was like 1055 rpm) and that thing is still going strong, AND literally the most quiet compressor I ever heard, he put it in a cabinet from a broken drier we had...


ANYWAY, I am curious about this champion unit, when ever someone asks me about compressors I always say either a cheap 3hp 60ga from tractor supply, the quincy/baldor, or the 7.5 IR.. I may have to add this champion in there somewhere...
 
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Nexussian

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Alaska
I have a compressor with a champion pump.

It's rated @ 19.7 CFM (SCFM? don't remember which at the moment) @ 100 PSI.

Book says it's good to 175 PSI, but I'm running 150.

It is a replacement pump, compressor was used when we got it (1968 model from what we can tell) and we were using it a bunch.

It was getting tired and needed a rebuild (wouldn't keep up with demand it used to and would take over 20 minutes to fill the tank from zero).

We didn't have the time to be without compressed air so we bought a new Champion pump.

It's still running the same 5HP single phase motor (250 V).

I have no scientific measurements as to flow, but we have a "Skat Blast" brand blasting cabinet we wore out, patched the cabinet and replaced the siphon and gun with an industrial model of different brand.

New gun setup is rated @ 24 CFM 100 PSI consumption, I'm running it @ 60 PSI through a regulator.

Compressor runs continuous when blasting, I change the oil and inlet filters regularly.


As to your original question, my Champion is 2 stage, is your Quincy 2 stage or twin cylinder single stage?

In the link to Amazon, the Quincy pump appears smaller than my Champion.
 
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