Air tools rant

[Bird]

This is mine, 30 gallon tank and 5 hp

Does not keep up well with my air tools. bought this at NAPA I believe but it is a CH.

JB

That's probably a good compressor, but calling it a 5 hp means that's using the old rating system that all the manufacturers had to get away from after a lawsuit. Perhaps that's peak horsepower, but my Industrial Air by Coleman Powermate also has a 30 gallon tank and I see in the link the new one is rated at 1.9 running hp while my manual shows 1.8. Of course mine will be 6 years old in less than 2 months.

 

[deereman75]

This is the one I have,Product - Cast Iron Compressor, 3 Running HP, 26 Gallon - from Campbell Hausfeld

 

[Bird]

This is the one I have,Product - Cast Iron Compressor, 3 Running HP, 26 Gallon - from Campbell Hausfeld

That should be plenty of compressor for most people, but of course some tools do require more, or you have to periodically wait on a smaller compressor to catch up.

 

[deereman75]

That should be plenty of compressor for most people, but of course some tools do require more, or you have to periodically wait on a smaller compressor to catch up.

I agree, for anything I do, 10 CFM is more then enough, but it is a bit small for things like sanding and way too small for most sand blasting.

 

[dex3361]

I drug a Quincy Model 325 home and fixed it up. Needed some gaskets and the air unloader valve cleaned up. Changed the oil and the intake filter and that is about all. The motor and pump is mounted on a 80 gallon horizontal receiver and the motor starter is on the wall. There was a 3 phase 5 HP motor on it and I changed it out to a 5 HP GE triclad capacitor start single phase motor. I set up the pulleys so that at 200PSI it would pull 23A so as not to stress the motor. It has been a good set up. I think set up this way it makes about 17 CFM @175# PSI. If I remember correctly that is.

 

[5030]

The slower the compressor turns, the longer it lasts. Quincy, Champion, Saylor-Beal are all slow turning (less than 800 rpm) compressors and with minimal care, will outlast a mortal and all the above are available in pressure lubricated/spin on oil filter models.

I had a friend who got a deal on a direct drive oil less from Sears and it literally shook itself apart. I looked at it after it destructed and it had a die cast aluminum connecting rod running an aluminum piston in a die cast aluminum bore with plastic piston rings.

What junk.

 

[JB4310]

This is the one I have,Product - Cast Iron Compressor, 3 Running HP, 26 Gallon - from Campbell Hausfeld

That odd, my CH compressor has a higher HP motor and little bigger tank but is only 5.8 AVG SCFM compared to your 10.2 ?? and mine is in that Extreme Duty line as well. IT is 10 years old though.

Maybe as Bird Mentioned mine is over rated, but that motor is pretty big, My 10,000 watt generator has trouble starting it if there is pressure in the tank ?

JB.

 

[mjncad]

That's a dangerous practice. You can actually blow stuff into your skin. I ignored it as a kid and had a piece of stainless steel imbedded in my hand for 20 years before it festered out.

That's why modern OSHA rated nozzles were invented as a way to minimize this from happening; but I'm still careful when blowing shavings and dirt off of me.

What's that got to do with anything? The specs are written in english.

www.engrish.com

 

[Bird]

I agree, for anything I do, 10 CFM is more then enough, but it is a bit small for things like sanding and way too small for most sand blasting.

My first experience with sandblasting was with a one quart can like a paint sprayer and I think my compressor at that time was a 12 gallon tank and supposedly one hp motor. It worked . . . incredibly slowly and I spent a lot more time waiting for the compressor to catch up than I did blasting.:laughing:

Then in the late '90s I bought a Craftsman rig that held 100 pounds of sand. And with a 30 gallon Craftsman (by DeVilbiss) 3.5 hp (claimed) oilless compressor, I not only had to spend more time waiting than blasting, but ran the compressor long enough to break the reed valves while it was still in warranty.:laughing:

 

[deereman75]

That odd, my CH compressor has a higher HP motor and little bigger tank but is only 5.8 AVG SCFM compared to your 10.2 ?? and mine is in that Extreme Duty line as well. IT is 10 years old though.

Maybe as Bird Mentioned mine is over rated, but that motor is pretty big, My 10,000 watt generator has trouble starting it if there is pressure in the tank ?

JB.

Is the motor 110v or 220v, mine is a 220v motor that draws I think 16.5 amps, If yours is a 110v motor, it is way over rated, the most you can get from a 110v 15 amp, circut is 1.5 hp.