Air Compressor Performance

[jwmorris]

I have a number of older compressors and wished I had wrote down how long they ran, to fill from empty. So I could see how well they were still doing.

Thought maybe others had the same thought at some point and numbers could be collected and shared.

One is an 80 gal with an SS5 compressor and 6hp motor, 0-130psi in 7min 16 sec.

Next is a 60 gal SS aluminum twin with a 5hp motor, 0-125psi in 5min 32 sec

A little 2 gal 1hp, 0-135psi in 56 seconds. Might need to adjust that regulator if that gauge is correct.

What kinds of numbers do you get?

 

[sd455dan]

I have a number of older compressors and wished I had wrote down how long they ran, to fill from empty. So I could see how well they were still doing.

Thought maybe others had the same thought at some point and numbers could be collected and shared.

One is an 80 gal with an SS5 compressor and 6hp motor, 0-130psi in 7min 16 sec.

View attachment 848315
View attachment 848312

View attachment 848313


Next is a 60 gal SS aluminum twin with a 5hp motor, 0-125psi in 5min 32 secView attachment 848314

View attachment 848311


A little 2 gal 1hp, 0-135psi in 56 seconds. Might need to adjust that regulator if that gauge is correct.


View attachment 848310


What kinds of numbers do you get?

Is that the original motor on the Ingersoll?
I find it odd that it is not showing a continous duty motor and looking lists 30 minutes.?

I will run my Ingersoll 60 gallon and my new Black Diamond 80 gallon empty to full and post the numbers

 

[hiddentacocatneddih]

never timed it. My 7.5hp ingersoll rand dual cylinder is rated around 15 cfm iirc

Normally turn it on grab, my hose and by that time I can start using it. It pumps more air than i can normally use

 

[eKretz]

I've got a 5 HP, 80 gal IR as well. About 2001 vintage. I don't generally time it from 0- anything as it's always filled. I shut the valve when not using it and it holds the pressure for months on end. I did time it once just to sanity check the CFM and it checked out at ~16. It's a simple matter to run a quick differential pressure test and use an online calculator if you want to make sure a compressor's still in decent shape. No need to go to zero pressure either. Check your end result against the compressor's rated CFM.

 

[JCoastie]

Everytime I think I want a larger capacity and quieter compressor setup, I am reminded by the long run/fill times, and stick with my 4.5gal, 3.5hp loud Porter Cable Job Boss, which only takes a minute to fill.

 

[DJ54]

My 60 gallon single stage bit the dust last Summer. Not complaining, it lasted me 23 years and used it quite a bit. Looking at comparable new ones in the $1K range digging s littler deeper into the specs. many like DeWalt, IR, and those similar have an expected service life of 1,000 to 1,500 hours of run time. Campbell Hausfeld is the only one I found in that price range that their expected service life is 5,000 hrs. Of course, that is expected doing normal maintenance of oil change and air filter.

Ended up with a 60 gallon 2 stage, with I think 11 cfm @ 90 psi. Enough to run any of my air tools, and HVLP paint gun. Also has a 75% duty cycle, while similar units in the price range was 50%.

Not many U.S.A. built here anymore unless you want to spend big bucks. Even the Quincy lower end may be assembled here, but imported components.

 

[5030]

Something I've never did and probably won't do anyway. I see no need. Besides I have around 250 gallons of combined receivers, which I require for my plasma table anyway.

 

[5030]

I have a number of older compressors and wished I had wrote down how long they ran, to fill from empty. So I could see how well they were still doing.

Thought maybe others had the same thought at some point and numbers could be collected and shared.

One is an 80 gal with an SS5 compressor and 6hp motor, 0-130psi in 7min 16 sec.

View attachment 848315
View attachment 848312

View attachment 848313


Next is a 60 gal SS aluminum twin with a 5hp motor, 0-125psi in 5min 32 secView attachment 848314

View attachment 848311


A little 2 gal 1hp, 0-135psi in 56 seconds. Might need to adjust that regulator if that gauge is correct.


View attachment 848310


What kinds of numbers do you get?

Dang, I didn't know IR's were made in India... Glad I don't have one. My 30 year old Quincy QP was made here and so was my Sullaire Screw compressor I keep as a standby.

 

[Sawyer Rob]

Here's one of my compressors, I've had it since the early 80's,

I've long since forgot it's ratings, but it works just fine for what I need it for and it just keeps just chugging along.

It's an "honest" 5 hp compressor, unlike those fake ratings you see on them today!

SR

 

[loggin]

Here's one of my compressors, I've had it since the early 80's,

I've long since forgot it's ratings, but it works just fine for what I need it for and it just keeps just chugging along.

It's an "honest" 5 hp compressor, unlike those fake ratings you see on them today!

SR

That's a really nice one!!! Pretty sure they don't make them like that anymore. Or they cost a fortune..

 

[eKretz]

Everytime I think I want a larger capacity and quieter compressor setup, I am reminded by the long run/fill times, and stick with my 4.5gal, 3.5hp loud Porter Cable Job Boss, which only takes a minute to fill.

That's just fine if you can get by with it. Won't work at all for high flow tools. A big impact, for instance, will be next to useless with such a little compressor. But most are using electric ones these days anyway. I have a blast cabinet also though; small compressor won't fly there, either.

 

[sd455dan]

Everytime I think I want a larger capacity and quieter compressor setup, I am reminded by the long run/fill times, and stick with my 4.5gal, 3.5hp loud Porter Cable Job Boss, which only takes a minute to fill.

I ran my new 80 gallon 2 stage goes from 0-175 psi in 6 1/2 minutes.
My old IR 60 gallon have not tested the time yet.
Going to install a new pump since it is pumping some oil .
Should have over 30 CFM @90psi with both compressors running.

 

[Sawyer Rob]

That's a really nice one!!! Pretty sure they don't make them like that anymore. Or they cost a fortune..

I got it half off (at the time) because everyone wanted a new fangled up-right compressor.

I wanted an horizontal, so it worked out perfectly.

SR

 

[5030]

My Quincy is a vertical but my screw compressor is a horizontal. Both mine are capable of 175 PSI but I have them set to cut off at 135 psi. The lower the head pressure is, the less moisture they produce and they last longer as well and most air powered tools don't require 175 PSI anyway. The will run just fine at 135 or even 100 PSI so long as they can get the CFM.

 

[sd455dan]

My Quincy is a vertical but my screw compressor is a horizontal. Both mine are capable of 175 PSI but I have them set to cut off at 135 psi. The lower the head pressure is, the less moisture they produce and they last longer as well and most air powered tools don't require 175 PSI anyway. The will run just fine at 135 or even 100 PSI so long as they can get the CFM.

For now I am keeping the new compressor at 175 for the bead breaker on my tire machine.
When it is really cold tires like 10 plies can be much harder to break the bead loose.

If 175 psi on the bead breaker won't do it, I will just use the TLB's bucket.
Just have to be sure to miss the rim itself.
I have to say once the break in oil was dumped and the synthetic oil put in the compressor sounds smoother.

 

[jwmorris]

I ran my new 80 gallon 2 stage goes from 0-175 psi in 6 1/2 minutes.

Thank you, that is the kind of quantitative information I was looking for. What is the brand and model?

 

[eKretz]

For now I am keeping the new compressor at 175 for the bead breaker on my tire machine.
When it is really cold tires like 10 plies can be much harder to break the bead loose.

If 175 psi on the bead breaker won't do it, I will just use the TLB's bucket.
Just have to be sure to miss the rim itself.
I have to say once the break in oil was dumped and the synthetic oil put in the compressor sounds smoother.

I just changed some 10 ply 12-16.5s. broke the beads with a stabilizer.

 

[jwmorris]

Something I've never did and probably won't do anyway. I see no need. Besides I have around 250 gallons of combined receivers, which I require for my plasma table anyway.

Me either but why wait until things fail, if we could easily see a decline in their performance before failure..when you require it?

 

[sd455dan]

Thank you, that is the kind of quantitative information I was looking for. What is the brand and model?

It is branded as Black Diamond but is built by MAT Holdings which owns the old Sanborn name. They have several foundries and own Bendix along with several other companies.They manufacture Dewalts identical 80 gallon two stage, and their own brand "Industrial Air" and a few others with the same model number IV5048055
I do like that they sell a bundle kit with rings, new reeds,gaskets, and rod bearing shells. May order it to have since that is what Ingersoll promissed, and then when the rings needed replaced they just said no longer serviced.

Checked the old Ingersoll 60 gallon 5HP and it pumped up to 125 psi in 7:07 but it spins the single stage pump much faster than the 2 stage. Still not bad for a near 40 year old aircompressor that has sanded and painted cars, trucks, skid steers, tractors, trailers, and even a 12 yard dump truck.

 

[mikester]

I'm more interested in the recharge times when using the compressor ie. 90-130 psi rather than fill from empty time. I also prefer quieter compressors.