Info: 80 Gal 5hp 2 Stage Air Compressors NEED FEEDBACK

Awenta

Active member
Sep 28, 2014
4,090
2
38
CT
You can also just run a zig zag of pipe as a dryer


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c20elephant

C20ELEPHANT
Apr 25, 2013
2,065
0
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Phoenix, Arizona
being that the compressor already has a single phase on it, hes better off going that route than building a phase converter. it was the same cost to buy a nice new motor for my compressor than to build a phase converter and run the 3 phase unit that came on my compressor originally.

Ya I read it, now he has a backup option if he wants or sell the 3 phase motor later on...
 

THEFERMANATOR

LEGALLY INSANE
Feb 16, 2009
3,890
43
48
44
ZEPHYRHILLS, FL
Avoid anything with a century or ao smith electric motor. They used to be good, but now they're junk. They usedto be US made, but now they're chinese parts slapped together in mexico. I made the mistake of not checking into this and assuming they were still made in the USA when I bought mine, and 3 years of light use later the motor let the smoke out. Mine is very similiar to the dewalt unit with the same motor. The ingersol's in 5hp and under have bad reps for the motors failing. I would also advise against buying anything with a motor on it with an spl rating. Most of them if you check the specs have higher current draw, weigh less, and just don't last as they are being pushed so hard.
 

rcr1978

Active member
Apr 1, 2007
790
26
28
Spring Creek, NV
Avoid anything with a century or ao smith electric motor. They used to be good, but now they're junk. They used to be US made, but now they're chinese parts slapped together in mexico. I made the mistake of not checking into this and assuming they were still made in the USA when I bought mine, and 3 years of light use later the motor let the smoke out. Mine is very similiar to the dewalt unit with the same motor. The ingersol's in 5hp and under have bad reps for the motors failing. I would also advise against buying anything with a motor on it with an spl rating. Most of them if you check the specs have higher current draw, weigh less, and just don't last as they are being pushed so hard.


I've found the same thing with the junk motors.

That I/R below has a cheap light duty/junk motor and pump. They do have better higher priced industrial units the old T30's were really good, pretty much most of there new stuff sucks. Quincy has a real good industrial line probably the best they are expensive though, they also have the light duty garbage to so be careful what you get. Speedaire, Champion, Curtis are also decent. One thing to remember is a piston compressor should have no more than a 50% duty cycle, run it more than that it will be tired soon. If it doesn't list the actual HP and doesn't have a cast iron pump it's going to be a throw away POS. You won't get a good compressor new through anyone except a air house more than likely. Northern, Grainger, or any other place that sales a variety of things has the cheaper line of the name brands. A good industrial 5-10hp industrial unit is going to be $2500-5000 for one that will last.

Screws have a 100% duty cycle but maintenance is expensive not worth it for the average small shop the oil can be almost $400 a bucket (5gal)
 

juddski88

Freedom Diesel
Jul 1, 2008
4,655
120
63
Chesterfield, Mass.
I've found the same thing with the junk motors.

That I/R below has a cheap light duty/junk motor and pump. They do have better higher priced industrial units the old T30's were really good, pretty much most of there new stuff sucks. Quincy has a real good industrial line probably the best they are expensive though, they also have the light duty garbage to so be careful what you get. Speedaire, Champion, Curtis are also decent. One thing to remember is a piston compressor should have no more than a 50% duty cycle, run it more than that it will be tired soon. If it doesn't list the actual HP and doesn't have a cast iron pump it's going to be a throw away POS. You won't get a good compressor new through anyone except a air house more than likely. Northern, Grainger, or any other place that sales a variety of things has the cheaper line of the name brands. A good industrial 5-10hp industrial unit is going to be $2500-5000 for one that will last.

Screws have a 100% duty cycle but maintenance is expensive not worth it for the average small shop the oil can be almost $400 a bucket (5gal)

Kaeser has an excellent lease to own program and is very reasonable about service up here in this area. They are incredibly durable and quiet, and have small single phase options. They get my vote
 

rcr1978

Active member
Apr 1, 2007
790
26
28
Spring Creek, NV
Kaeser sure has been making a hard push in the small market lately lots of guys like them, any screw with belts is a pain in the ass though in my opinion but the guy that doesn't run one hard doesn't notice much.
 

Awenta

Active member
Sep 28, 2014
4,090
2
38
CT
If the compressor can't keep up a second tank won't really help. It will give you more runtime but you still need to wait for it to catch up.


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c20elephant

C20ELEPHANT
Apr 25, 2013
2,065
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Phoenix, Arizona
Passive air dryer is the least costly and works excellent, NAPA used to have an automotive paint section in their main store years ago. I asked the old guy at the counter about a water issue we were having in our booth and this is what he suggested. He said the minimum of airline prior to going into a dryer is 20ft using cast iron pipe and always use drip legs. I rarely have drained water/moisture from the dryer just to the right of the hose reel.

All the lines run uphill minus the section that drops down to the dryer, make fun of it all you want, IT WORKS on the most humid of days for the last 20+ years....

The fans above the compressor are to keep the compressor cool (wired to come on when the compressor starts/stops) as the flywheel/fan is up against the wall making it useless.

This is an Oholiab 2 stage pump rebuilt and is identical to the Ingersoll & Rand T-30 pump and has the spec identical to the link below....:thumb:

http://www.aircompressorsdirect.com/Schulz-580VV20X-1-Air-Compressor/p13463.html?gclid=CP2gsd_S2dECFUm1wAodR4wAgA

little more expensive but i run this compressor in my shop for 5 years now no complaints and keeps up with the blasting cabinet no problem.
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Hernpj01

On a Time Out
Sep 23, 2014
403
0
0
Indiana
Mike thank you for the info, i found a older IR T30 i am looking at tonight through a friend. I am not going to buy a new one after all.
 

six5creed

Member
Jan 6, 2016
1,046
58
48
N.C.
We have a 3 phase Sullair here at work. Here's it and the dryer. The dryer has a line above it we can bypass the dryer if need be. It has filters before and after the dryer as well. The Sullair people installed it this way 15+ years ago.
e0dcd4c1deff0f3f2525f492b8191a10.jpg
18342848f07d9d7a3eb805742fec6156.jpg
f7a53a12fac346eb43ff2b3a85b9d09e.jpg



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six5creed

Member
Jan 6, 2016
1,046
58
48
N.C.
This is our backup. It's worn out but we still have to use it every now and then when the Sullair takes a sick day.
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Budneeds2beers

Aka Mike Honcho....
Aug 25, 2016
497
4
18
Cali
A store near my house has a brand new craftsman 80 gal 2 stage for like $900. Was thinking about getting it but last year i bought a 60gal single and havent used it yet....