Sand blaster vs. Compressor dilemma

[jazz1]

Sandblasting requires a crapload of air,,as does HVLP spray guns...Get a compressor capable of 18 cfm @ 90 psi ,,nothing less. This one of mine is 3 cylinder single stage 220v. My neighbour was good enough to move it into the shop with his new toy.

[chopolds]

Go to a compressor repair shop in your area, or hunt down shops going out of business. Buy a good brand used compressor, even if it needs a bit of repair. It will last years longer than the NEW cheap CHinese crap you'd buy at a box store.
Speed-aire, Quincy, Ingersoll

[31Vicky with a hemi]

Originally Posted by tb33anda3rd

your sort of correct but you have to think of it like this, you can drive a lot longer with a big block v8 [ the engine equivalent of a sand blaster] if you start out with a larger size gas tank. yes the compressor will put out the same, but you filled more air before you even started. compressor may never catch up but it will not run out as fast.

Flawed logic there.
if the compressor puts out 99 CFM and you are using 100 CFM, it will never keep up. At best you'll have a 20-30% blast time with a large enough tank while the compressor runs 100% of time.

Much the same way as if you were to sell $1.00 for $0.99 cents, you'll be broke soon. The more you start out with (tank size) the longer it takes. The more volume you sell (cfm usage) the quicker you go broke.

[tb33anda3rd]

Originally Posted by 31Vicky with a hemi

Flawed logic there.
if the compressor puts out 99 CFM and you are using 100 CFM, it will never keep up. At best you'll have a 20-30% blast time with a large enough tank while the compressor runs 100% of time.

Much the same way as if you were to sell $1.00 for $0.99 cents, you'll be broke soon. The more you start out with (tank size) the longer it takes. The more volume you sell (cfm usage) the quicker you go broke.

your analogy reenforces what i wrote, what good is a sandblaster if you have to stop to let it catch up? the more air in storage the longer you can go, and in the case of my pot blaster the compressor looses it's power just as i need to refill.

[BIG-JIM]

Originally Posted by B Blue

To see what you will need, go to this link and click on the various compressors. Yes, the guy is selling his compressors, but there is a lot of truth in what he says.
http://www.eatoncompressor.com/page/page/518643.htm

Bill

Yup this is what I have. Eaton V4 this thing rocks! If you what to do some sandblasting this is the thing to do it with. It doesn't even break a sweat. Mine is on an 80 gallon tank with an auto drain. Not the cheapest on the market but it is damn near bullet proof.