Advice on Purchase of Air Compressor

I plan to use the following tools with a compressor: - Paint gun - quart size - to prime and paint all but sheet metal - Dual action sander - 6" - Grinder, right angle - Rachet - Sand blaster - possibly a quart sized unit for for small parts

Recently, I looked at a Coleman oil-free, single cylinder, 5hp, 20 gal model. It is wired for 120 convertible to 240. It puts out 9.1 cfm @ 40 lbs. and 7.3 cfm @ 90 lbs. 120 lbs. sq. inch max. working pressure. The price was right but I'm unsure about the specs.

Any suggestions will be appreciated.

Ken

I have had a two horse for 15 years and it is still running strong. I have done about everything with it. some advise make sure you get a 220 motor, some of the higher hp 120 motors are a joke, no power. get a oil one, belt driven. The most important thing to keep in mind is for most things you want a large tank 2 hp should be fine, The idea is not to run the compressor all the time, but to fill the tank and let the air inside cool, cooler the air the less water it will hold. A small compressor will run all the time if you are doing sand blasting, resulting in hot air cooling in the lines and causing lots of water mixed with the sand be sure you use at least one water trap.
good luck Paul

: I plan to use the following tools with a compressor:
: - Paint gun - quart size - to prime and paint : all but sheet metal
: - Dual action sander - 6"
: - Grinder, right angle
: - Rachet
: - Sand blaster - possibly a quart sized unit for
: for small parts

: Recently, I looked at a Coleman oil-free, single cylinder, 5hp, 20 gal model. It is wired for 120 convertible to 240. It puts out 9.1 cfm @ 40 lbs. and 7.3 cfm @ 90 lbs. 120 lbs. sq. inch max. working pressure. The price was right but I'm unsure about the specs.

: Any suggestions will be appreciated.

: Ken : :

If anybody needs Air Compressor I have a LeRoi 50 horsepower 200 C.F.M. , It is 440 3 phase, Idea for any repair shop, comes with 150 Vertical Tank and all Pipeing , Original cost excess of $17,000. will Take $ 5200.00

I was glad I bought a couple of in-line filters
for moisture. It seemed to help out.

Good Luck

I have a small 12 gallon oiless. Has been chugging for about 4 years. Mainly use it for impact tools, ratchets, etx.

Is a little small for spray painting or sandblasting, but I was limited to 115v 15 amp service.

I had doubts about the oiless, but as I said its still going and for what I paid for it if the pump shells out, it doesn't owe me anything.

You are on the right track with tank - bigger the better.

Obviously, if you can afford it a large verticle with a cast iron pump will last forever, ther are some good deals on these - I've seen them at Tractor Supply.

You also might want to check out Harbor Freight - they have a lot of different compressors and shipping is free over $50 order. www.harborfreight.com

Hope this helps.

JerryU

: I have a small 12 gallon oiless. Has been chugging for about 4 years. Mainly use it for impact tools, ratchets, etx.

: Is a little small for spray painting or sandblasting, but I was limited to 115v 15 amp service.

: I had doubts about the oiless, but as I said its still going and for what I paid for it if the pump shells out, it doesn't owe me anything.

: You are on the right track with tank - bigger the better.

: Obviously, if you can afford it a large verticle with a cast iron pump will last forever, ther are some good deals on these - I've seen them at Tractor Supply.

: You also might want to check out Harbor Freight - they have a lot of different compressors and shipping is free over $50 order. www.harborfreight.com

: Hope this helps.

: JerryU

Your right Jerry ! those oiless compressers are ideal for us "Joe homeowners" A freind has one (Sears) , had 5 years, still going strong, I'm next !, hope to buy one in the spring. As far as a aux. tank, I use an old 40gal. hot water heater tank, if you use one, make sure it's in good shape and be sure to test it ! Just fill it 99% with water then fill with air, this way if it falls you'll only have a small volume of air at 150psi ! instead of a 40 gal. 150psi bomb !!

later dave

I would not use anything that does not have an ASTM certification on it. Secondly, never use a tank without a relief valve on it. These are receipes for getting hurt.

JerryU

: I would not use anything that does not have an ASTM certification on it. Secondly, never use a tank without a relief valve on it. These are receipes for getting hurt.

: JerryU

JerryU, Your right ! a hot water heater tank is a "POOR" choice !, They are to thin walled to use for an air tank, even with my half-ass test ! It kills me, I've been useing this tank for years !, I've been danceing on a mine field, think I'll remove it from the shop this weekend !!

Bonehead dave, part 2

: : I would not use anything that does not have an ASTM certification on it. Secondly, never use a tank without a relief valve on it. These are receipes for getting hurt.

: : JerryU

: JerryU, Your right ! a hot water heater tank is a : "POOR" choice !, They are to thin walled to use for an air tank, even with my half-ass test ! : It kills me, I've been useing this tank for years !, I've been danceing on a mine field, think I'll remove it from the shop this weekend !!

: Bonehead dave, part 2

The CFM rating of your tools should help you decide how big a compressor to get. I know mine is too small (and old) to run a DA sander. My next one will be oversized. I don't even want to think about "homemade" air tanks!!! Yikes! Good Luck.

: : : I would not use anything that does not have an ASTM certification on it. Secondly, never use a tank without a relief valve on it. These are receipes for getting hurt.

: : : JerryU

: : JerryU, Your right ! a hot water heater tank is a : : "POOR" choice !, They are to thin walled to use for an air tank, even with my half-ass test ! : : It kills me, I've been useing this tank for years !, I've been danceing on a mine field, think I'll remove it from the shop this weekend !!

: : Bonehead dave, part 2

: The CFM rating of your tools should help you decide how big a compressor to get. I know mine is too small (and old) to run a DA sander. My next one will be oversized. I don't even want to think about "homemade" air tanks!!! Yikes! Good Luck.

Any motor rated at 2 hp. and up should be hooked 230 volt.

Dusty