Opinions on tool addition

[Gtmustang88]

Originally Posted by BadGirl

Does Diamond make an air compressor?

Next question..

CFM.

If a compressor is 5 CFM at 90 PSI, what's the CFM at say 10 PSI? Or does it not change? Will it always be 5 CFM independent of the PSI?

You also got a regulator on the line for the supply air to the tools. I have mine cranked all the way up, it wont' hurt the tool as long as you keep them oiled and have a good quality tool. You need to look at the tools you want to use and what the recommended air flow is. Most compressors can do 5cfm at 90 psi, but the real question is how long? That is why you need a descent size tank along with compressor to keep it filled up.

[Jeff (Premo)]

I have one for ya. Hardly used. Been in the shed for a couple years and I never use it.

I bought it at Walmart. I think it ran a couple hundered. Looks brand new still. I think the only thing wrong with it was I had removed the drain plug on the bottom and lost it.

I am not home right now but I think this is it:
Product - Cast Iron Compressor, 2 Running HP, 20 Gal. - from Campbell Hausfeld_

I think would have a hard time finding the hoses & fittings I have for it so plan on buying that stuff. I'll look around though.

For a case of Coors light it's yours.

[Dougstermd (Premo)]

Originally Posted by Gtmustang88

You also got a regulator on the line for the supply air to the tools. I have mine cranked all the way up, it wont' hurt the tool as long as you keep them oiled and have a good quality tool. You need to look at the tools you want to use and what the recommended air flow is. Most compressors can do 5cfm at 90 psi, but the real question is how long? That is why you need a descent size tank along with compressor to keep it filled up.

redundant.

the cfm rating would indicate the compressor is capable of that output no matter the size of the tank

[Gtmustang88]

Originally Posted by Dougstermd

redundant.

the cfm rating would indicate the compressor is capable of that output no matter the size of the tank

I guess the point I was trying to get across was that if you got a small tank and you are using an impact alot, or grinder, etc that the tool will not run at its potential with a small tank. It will just drain the tank and the compressor will not be able to keep up. Those oil free compressors get very hot and you don't want it to run non stop.

[Dougstermd (Premo)]

Originally Posted by Gtmustang88

I guess the point I was trying to get across was that if you got a small tank and you are using an impact alot, or grinder, etc that the tool will not run at its potential with a small tank. It will just drain the tank and the compressor will not be able to keep up. Those oil free compressors get very hot and you don't want it to run non stop.

I follow your logic however no matter how big the tank is if the compressor is not capable of supplying the demand the tank will run empty/low.

Impact does not require a large CFM rating because it is typically used in short burst allowing the compressor to keep up. Grinders/sanders/ blow guns etc are used in a manner that is continious and quickly depletes any "cusion" given by the tank. The compressors that come with the 20 gallon tank will fill the need for most home owners doing minor maintanence but bigger is always better

[Gtmustang88]

Originally Posted by Dougstermd

I follow your logic however no matter how big the tank is if the compressor is not capable of supplying the demand the tank will run empty/low.

Impact does not require a large CFM rating because it is typically used in short burst allowing the compressor to keep up. Grinders/sanders/ blow guns etc are used in a manner that is continious and quickly depletes any "cusion" given by the tank. The compressors that come with the 20 gallon tank will fill the need for most home owners doing minor maintanence but bigger is always better

I understand what you are saying. I use to have a 15 gallon tank, and even just rotating the tires, I would have to wait on it because it could not keep up and the gun would have no power at all. When i use to work at a dealership, i pretty much learn to use air for anything and everything you can, so I do much of the same practice at home when working on vehicles or using a tool I have that runs off of air. The 33 gallon one is ok, but if I had to do it again, I would go with a bigger one that is not oil free.

[RadioPatrol]

yeah def ...

I have an 80 Gal 16.5 CFM @ 90 PSI

a couple impact wrenches, 1/4 and 3/8 drive ratchets, air chisel, air drill w/2" sanding disk, exhaust cut off tool

if your do a fair amount of shade tree work\


and I think it cost $ 1200 ....


and it is an Ingersoll Rand IIRC.... the biggest Lowes carried @ the time

Originally Posted by itsbob

I thought so, but don't much about compresors. Figured Lowes would be more about outfitting a carpenter than a mechanic. I don't need to roof a house (yet) or do finish work. I'm looking for auto and bike purposes.

get the highest CFM your wallet can afford .... oh and mine is 220V