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frontrange
06-14-2011, 01:50 PM
I'm tired of rebuilding compressors, so I'm looking at buying what I hope to be my last compressor and this time I'm going for an industrial grade 5HP 60-80Gal unit. My first inclination was to go Ingersoll Rand since I know and trust the brand. But I noticed Quincy has their compressors rated at 50,000 hours pump life while the IR has no claim on the useful life of theirs. I've got no experience with Quincy. Both are USA made. Any experience with either or other suggestions welcomed. I have a budget around 2K.
TIA

ScaldedDog
06-14-2011, 03:06 PM
I have an Eaton, and it's been fine.

Mark

sleeoffroad
06-14-2011, 05:28 PM
Kaeser Rotary

http://us.kaeser.com/Products_and_Solutions/Rotary-screw-compressors/standard/default.asp

frontrange
06-14-2011, 05:40 PM
???

I looked at rotary in the 5 hp range, they had less volume and half the PSI at 2x the cost of a 2 stage. Why rotary?

60wag
06-14-2011, 09:11 PM
They are more efficient than piston compressors. As the quantity of compressed air goes up in commercial applications, the cost of the compressor is insignificant compared to the cost of the power used to run it.

Two stage piston is nice if you have the need for pressure over 110psi. If not, its a waste of power to run the pressure higher than needed.

frontrange
06-14-2011, 09:23 PM
Ok. Kaesers web site has zero product info, you have to give them everything short of SSN to get them to send you information. That really turns me off. I found Chicago Pnuematic has a nicely rated 5hp rotary screw for about $4300. anyone have experience with them? I guess I could double my budget but I'd like to feel confident this will be the last compressor purchase.

On second thought, although I like the idea of a quieter compressor, how is pushing a 2 stage reciprocating pump with a 5 HP motor to generate 175PSI @ 20 CFM less efficient than a rotary screw compressor using 5 HP motor to generate the same Or less CFM @ 90-110 PSI?

sleeoffroad
06-15-2011, 06:42 AM
Kaeser is not a consumer type product. The sales info is still delivered by a sales rep. However the compressors are outstanding. As for noise, you can not compare them. I have a 5hp Kaeser that I bought new. Can't remember the price, but it has served us well. You also needs tanks. If you are tired of consumer grade compressors, step up to these.

Currently the 5 hp Kaeser is a backup for us since I got a screaming deal on a Atlas Copco 20 hp rotary compressor some time ago. More air than what we would ever need.

The one I bought is a SX5 I believe. It is this series
http://www.kaeser.com/Images/P-651-0-ED-tcm8-6759.pdf

sleeoffroad
06-15-2011, 06:42 AM
Kaeser is not a consumer type product. The sales info is still delivered by a sales rep. However the compressors are outstanding. As for noise, you can not compare them. I have a 5hp Kaeser that I bought new. Can't remember the price, but it has served us well. You also needs tanks. If you are tired of consumer grade compressors, step up to these.

Currently the 5 hp Kaeser is a backup for us since I got a screaming deal on a Atlas Copco 20 hp rotary compressor some time ago. More air than what we would ever need.

The one I bought is a SX5 I believe. It is this series
http://www.kaeser.com/Images/P-651-0-ED-tcm8-6759.pdf

sleeoffroad
06-15-2011, 06:44 AM
Kaeser is not a consumer type product. The sales info is still delivered by a sales rep. However the compressors are outstanding. As for noise, you can not compare them. I have a 5hp Kaeser that I bought new. Can't remember the price, but it has served us well. You also needs tanks and look into an air dryer. If you are tired of consumer grade compressors, step up to these. I was exactly in your shoes some years ago and I can not be happier with what I bought.

Currently the 5 hp Kaeser is a backup for us since I got a screaming deal on a Atlas Copco 20 hp rotary compressor some time ago. More air than what we would ever need. You can stand and talk next to our either of our compressors. Not something you can do beside a typical piston type.

You are welcome to stop by and have a look and listen.

The one I bought is a SX5 I believe. It is this series
http://www.kaeser.com/Images/P-651-0-ED-tcm8-6759.pdf

RockRunner
06-15-2011, 09:11 AM
Geeeezzzz We get it Christo..........;)

ToyotaBob
06-19-2011, 08:30 PM
Kaeser is not a consumer type product. The sales info is still delivered by a sales rep. However the compressors are outstanding. As for noise, you can not compare them. I have a 5hp Kaeser that I bought new. Can't remember the price, but it has served us well. You also needs tanks and look into an air dryer. If you are tired of consumer grade compressors, step up to these. I was exactly in your shoes some years ago and I can not be happier with what I bought.

Currently the 5 hp Kaeser is a backup for us since I got a screaming deal on a Atlas Copco 20 hp rotary compressor some time ago. More air than what we would ever need. You can stand and talk next to our either of our compressors. Not something you can do beside a typical piston type.

You are welcome to stop by and have a look and listen.

The one I bought is a SX5 I believe. It is this series
http://www.kaeser.com/Images/P-651-0-ED-tcm8-6759.pdf

Oh dead on with the consumer grade crap,,,

Hallmark air compressor is what I got ,

Got it from my great grampa from the 1920" super quite, chugs along, 2 stage and still pumping,

How ya doing Christo ?

Hallmark,

frontrange
06-22-2011, 01:55 AM
FWIW, I just ordered this one http://www.aircompressorsdirect.com/Chicago-Pneumatic-QRS5.0HPD-1-Air-Compressor/p2018.html

It's a lot of cabbage- more than twice what I planned on spending, but has a dryer and is very quiet. 5 Year commercial warranty. It will be nice not to have to listen to the old reciprocating pump constantly running in the background.

sleeoffroad
06-22-2011, 06:15 AM
Don't have experience with CP, but when you get it, you will be happy with the rotary compressor and dryer. Good investment and enjoy.

ToyotaBob
06-22-2011, 12:39 PM
FWIW, I just ordered this one http://www.aircompressorsdirect.com/Chicago-Pneumatic-QRS5.0HPD-1-Air-Compressor/p2018.html

It's a lot of cabbage- more than twice what I planned on spending, but has a dryer and is very quiet. 5 Year commercial warranty. It will be nice not to have to listen to the old reciprocating pump constantly running in the background.

Wow, your right thats pretty big money Close to 6 grand, yikes,

well it otta last and better paying good money once and using it for a long, time than running every few years and buying a new one,

about the lousiest compressor a guy can get snookered into buying are the newer "Oilless" compressor,

terribly noisy, last about 6 months under heavy use, plastic piston rings if you can believe that,

frontrange
06-22-2011, 01:45 PM
But they gave me a $110 discount for paying by check. Woohoo, that closed the deal. All I can say is it better last me another 20 years. I've gone through 5 compressor pumps and 4 motors over the last 15 so it'll be worth every penny if it does.

DaveInDenver
06-22-2011, 01:56 PM
plastic piston rings if you can believe that,
They are PTFE, Teflon. This melts at 327*C, which is about 625*F. Not to say oil-less is preferred all things equal, but for /intermittent/ use there's nothing fundamentally wrong with a $8 piston/ring/rod assembly that can be replaced periodically in a $150 compressor. My Craftsman cheap-o is almost 10 years old, does the job fine. I just preemptively replace the guts every few years, but it's only filling tires and blowing out the sprinklers each fall. Maybe gets 10 hours of use annually.

BTW, oil-less compressors have been around a long time. Binks had one way back in the 1970s, IR still makes them AFAIK. They are used often in places that get very, very cold since the oil is a problem. Also, like air suspension systems in Lincolns and stuff use them and the environment for those is pretty tough, hot, cold, dusty. My ARB compressor is built the same way.

If the pump has to run endlessly, it's not the best choice. I don't argue the point. But oil-less compressors fill a need, cheap, simple, etc., when used in the right application. Their lifespan is mainly dependent on their quality of the manufacture, like anything. The bores need to be mirror smooth, not honed. Tolerances are fairly tight, heat removal and duty cycle are key.

http://img1.classistatic.com/cps/po/100221/118r3/34022df_27.jpeg

http://i56.tinypic.com/23ua2zd.jpg http://i52.tinypic.com/2eey7u1.jpg

ToyotaBob
06-22-2011, 10:05 PM
Well that Binks unit there dont look to bad, This was a "Coleman" brand compressor, still use the tank but its interesting that you say its good for cold weather applications,

I had it set up in a outdoor shed and thought that it was the cold that took the thing out,

Interesting,

Either way the thing was noisy, hated the sound of it, and yes probrobly ran it to much,

Poor mans air system, dinky compressor and lots of storage tanks, ,

Yes they may have there place but the sound of that thing drove me nuts,

Hulk
06-23-2011, 09:54 PM
Poor mans air system, dinky compressor and lots of storage tanks, ,

Yes they may have there place but the sound of that thing drove me nuts,

Please see The Bad Boys of Punctuation (http://www.penny-arcade.com/comic/2003/7/7/) (warning: NSFW for language)

frontrange
08-01-2011, 12:19 PM
Well this buy turned out to be a very expensive nightmare. The first compressor showed up a couple of weeks ago smashed all to hell. It took another week to get the freight company to pick it up and more than another week to get the replacement.

Now I'm going through the paperwork, and it turns out the 5 year warranty (only reason I went with this compressor) isn't valid unless I pay another $350 for a "Comission Report" done by a factory tech. No mention of that when I bought the damn thing.