Air Compressor

[DXN1EL]

Hi fellas

I am thinking about an air compressor for some of the "low end" size air tools like die grinders,
Shop Kobalt 1/4-in Rotary-Die Grinder at Lowes.com

I know very little about air compressors, I know the 5 gallon ones are for inflating, and I was wondering if something like this could do the job
Shop Ingersoll Rand 3-HP 60-Gallon 135-PSI Electric Air Compressor at Lowes.com


but if some one could point me in the right direction would be appreciated.

 

[murphy1244]

Hi fellas

I am thinking about an air compressor for some of the "low end" size air tools like die grinders,
Shop Kobalt 1/4-in Rotary-Die Grinder at Lowes.com

I know very little about air compressors, I know the 5 gallon ones are for inflating, and I was wondering if something like this could do the job
Shop Ingersoll Rand 3-HP 60-Gallon 135-PSI Electric Air Compressor at Lowes.com


but if some one could point me in the right direction would be appreciated.

That will work but if your going to spend that kind of cash buy a 5 Hp instead.

 

[Arc weld]

The CFM rating is what you need to be concerned with. HP, pressure and tank size don't mean a whole lot if the compressor doesn't put out the volume. I don't know if you have Eagle compressors where you're at but they have a medium/heavy duty 3 cyl. cast iron compressor that puts out 18.5 CFM at 100 PSI. I think it's an 1725/1800 RPM motor as well. Look for a cast iron head, oil filled crankcase and slower turning motor. 3400 RPM you'll be deaf in no time.

 

[yomax4]

Agreed, I have a 6hp 60 gln with the high speed 3400 rpm motor, She Really Hammers when she pumps. I hear it in my sleep.

 

[DXN1EL]

What kind of compressors do you guys have?
And what kind of tools are you using?

It seem like the air tool require a lot of air so a 10CFM is junk.
May be I will just wait and get something like this
Amazon.com: 120 Gallon Professional Series 2 Stage Vertical Air Compressor Voltage: 208/230V: Home Improvement

 

[Shield Arc]

I just had to replace my compressor awhile back. I bought this one. Haven't used it all that much, but so far really happy with it.

Champion VRV7 8 1 Ph 230V Air Compressor 7 5 HP Single Phase 2475N7 5P | eBay

 

[Bird]

You last two posters bought nice compressors, but for most farm and home use, those are just too expensive for many of us. When I lived out in the country, and was also in the business of repairing/rebuilding mechanics' air tools, I had the Puma PK6060V and it was actually all I ever needed. But I bought mine from a place that also built and sold their own bigger compressors. Northern Tool didn't have the Puma at that time. And then about 8 years ago, back in town, I bought this Industrial Air by Powermate Compressor from Northern Tool and now they no longer sell this one.:laughing:

 

[Shield Arc]

Hopefully that's the last compressor I ever buy! I have a small compressor for airing up tires, nail gun, etc, etc. This compressor is mostly for the plasma cutter, and CNC machine. Which I don't hardly ever use.

 

[murphy1244]

Boy 3 grand for a Compressor is out of my League.

 

[bulldogshotgun]

i recomend Eaton Compressor for there value.

there built/assembled in US, they do use imported compressors on most of there cheaper models.

eatoncomressor.com
emaxcompressor.com

 

[DXN1EL]

EP10V120Y1 EMAX 10-HP 120-Gallon Two-Stage Air Compressor (208/230V 1-Phase)
Any body knows How much this thing likes the juice?

 

[bulldogshotgun]

EP10V120Y1 EMAX 10-HP 120-Gallon Two-Stage Air Compressor (208/230V 1-Phase)
Any body knows How much this thing likes the juice?

oh i'd say you would need a 50 amp circuit.

i have the 7.5hp 4 Cyl. on a 40 amp circuit.

 

[farmer2009]

I have a craftsman professional 27 gal. Bought back in summer really like it didn't have breaker space for a 240v compressor so it has a dual voltage motor on it 120/240v. Just takes a rewire in the motor and a new plug no big deal. It is 150psi compressor really quiet. You can talk right beside it and not have to raise voice much. Paid like $499 on sale. Wanted a 60 gal but wife said no to new panel and compressor, welder took up my last place to 240v.

 

[yomax4]

I just run a plain jane 6hp 60 gln. Nothing special..I think it was about $450.00. It gets the snot run out of it. 12 yrs old now.Thinking of a new one some day. I also have a 3hp 25 gln campbel hosfeld on wheels for portable option. It gets used a lot at the cabin and anything away from the shop. If you don't need portability, Go with the biggest that the budget will allow.

 

[DXN1EL]

People have mention that I should look for a cast iron pump.
HD has this thing Maxair 120-Gal. Premium Industrial 10 HP Electric Single Stage Single Phase Horizontal Air Compressor-C101120H1-MS208-MAP at The Home Depot

Are this any good?
I wish I have 3 phase

 

[TomSeller]

I have a craigslist special as my shop machine. Old Quincy cast iron oil bath with few hours. Then a craftsman oil portable. Compressors have not changed much so old school in good shape is worth considering.

 

[yomax4]

Some compressors pull a ton of power on startup. Be sure to match wire and breaker to amp draw on start up. Mine only uses a 230v 30 amp. Some of the units on here are industrial monsters so I'm unsure what they pull on startup but I'd like to have one of those big dogs.

 

[BukitCase]

Man, my local HomeDespot doesn't have anything CLOSE to that beast - about 5 years ago I bought a DevAir TAPV-5052, never been sorry -

Compare 3 Different 5 HP Compressors

At the time it cost me $1900, guess they've gone up a bit.

With the 5 horse Baldor, running amps is 25 - startup inrush on most compressors is roughly double the running amps, but I've not measured that so can't give you exact numbers.

Mine is on a 70 amp breaker which also feeds my welder outlets - the compressor will sometimes kick in when I'm welding, and even with the old transformer welder I've been running 5/32" 7018 when the compressor started, no problems.

Unless you plan on starting a sandblasting biz, a REAL 5 horse should be all you need - and unless you have more shop space than you will ever need, I'd look for a vertical model.

Check the link - this one meets all the (agreed upon) previously mentioned "goodies", and then some... Steve

 

[farmer2009]

With those compressors you really must use them to pay for them. A smaller one like a good 60 gal 3 or 4 hp will do a lot as a hobby utility compressor. But if you are looking for a large compressor I would watch a 10 hp compressor on single phase as you are pushing the limits of single phase from my research. Might back off to an 8 hp or something similar. I don't see a use for that large of a compressor unless you plan on running a commercial shop or a power hammer at home.

Just my .02.

 

[SPYDERLK]

With those compressors you really must use them to pay for them. A smaller one like a good 60 gal 3 or 4 hp will do a lot as a hobby utility compressor. But if you are looking for a large compressor I would watch a 10 hp compressor on single phase as you are pushing the limits of single phase from my research. Might back off to an 8 hp or something similar. I don't see a use for that large of a compressor unless you plan on running a commercial shop or a power hammer at home.

Just my .02.

You might be right there. Momentary startup surge of a 10HP 240V single phase is above 200A. Circuit breakers have a built in delay so it would not blow a 60A, and the momentarty 200A would only brown you out a little on a 200A service. Normally big compressors have an unloader that prevents compression until it has spun up - so as not to burden the start. This shortens the surge period drastically.

You wont easily find single phase motors above 10HP.
larry