Posted: 8/26/2014 10:01:36 PM EDT
| 5hp 240v 30 gallon craftsman compressor 30 years old failed this weekend. rusted tank finally got a hole in it. did not have a catastrophic kaboom. looking for a replacement.any suggestions? general handyman use on weekends not everyday abuse.. thanks in advance..it is a oiled compressor and I am not getting good reviews on oiless compressors....budget is around $500 |
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I have two of those exact compressors, very good CFM output and not very loud. Stick with an oiled 240v compressor, output will be better and it will certainly be more quiet.
How much room do you have, and where do you plan on mounting the compressor? I prefer vertical style compressors, horizontals work just as well. My main compressor is an Ingersoll Rand 80 gal with the vertical tank, and I have the two Craftsmans as extras. $500 kind of limits you to some of the hobbyist level compressors, although you can still find a pretty good one in the 60 gallon range. How much use will the compressor see? Do you use a lot of high-CFM tools? |
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Quoted: Hmmm, I have a 15 year old craftsman, that looks new on the outside.... gets used every two weeks or so. Is a tank explosion a real risk? Back in 1998, the ASME code governing these tanks (and nearly all other non-fired pressure vessels) changed to allow slightly higher stresses resulting in thinner required shells and heads. So newer tanks COULD be made with thinner metal, meaning less safety factor with respect to corrosion. Now, repairing old tanks is NOTHING anyone other than a code shop (U stamp) should EVER do. PERIOD. Don't weld or heat the tank. Inspection is always a good thing, but paying for it might be a bit of a cost especially if it includes hydrostatic test. |
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Quoted:
Hmmm, I have a 15 year old craftsman, that looks new on the outside.... gets used every two weeks or so. Is a tank explosion a real risk? it did not explode! had heard of exploding tanks but my tank just got a pinhole leak from corrosion and just got bigger |
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Quoted:
I don't see how you could get a 5hp compressor that has a real 5hp on it for $500. The motors are going to be close to that for a decent one. Compressor motors are rated differently than regular duty motors. A 5 HP compressor motor or a 5 HP SPL as they are called is about equal to 3 1/2 HP regular motor. You can also tell the difference by the listed amp draw a 5 HP compressor will draw less than 20 at 230 volts where a true 5 HP motor will draw up in the 30 amp range |
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Take your motor off and examine what you have left so you have an idea on what to look for on your search for a blown up air compressor someone is wanting to sell. I figure you can make a lot of things work but best to know what you have. I keep coming back to some of the ingersoll rand stuff and while my budget says it can't do it I am working on figuring out how to spend close to a grand on the thing I guess. How did you drain your tank and where was the pinhole? I know things wear out and I am just kind of wondering about lifespan of this stuff. |
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dont Quoted:
Take your motor off and examine what you have left so you have an idea on what to look for on your search for a blown up air compressor someone is wanting to sell. I figure you can make a lot of things work but best to know what you have. I keep coming back to some of the ingersoll rand stuff and while my budget says it can't do it I am working on figuring out how to spend close to a grand on the thing I guess. How did you drain your tank and where was the pinhole? I know things wear out and I am just kind of wondering about lifespan of this stuff. don't blade on me but was NEVER drained as far as I know  pinhole is at bottom of tank at seam next to drain valve 
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| Don't try to repair the old one. The pin hole was a warning. Grainger has this Speedaire 26 gallon for about your budget. I don't see any mounting surface for the compressor/motor, but it could be remotely mounted (outside maybe?) and plumbed into the tank. |
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Stopped by tractor supply and saw an ingersoll rand 5hp 240volt air compressor for 699 I think, it has a 60 gallon tank. I am trying hard to just figure out how to get this one. One issue I will have is needing to run it off a generator and that brings up even more fun and games for my wallet to cry about. |
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Quincy.
Made in the USA and well built. My little 24 gallon one will run my snap on 4in cut off wheel long enough to cur through 4in angle iron. Which isn't bad. The impact doesn't even phase it. Only thing else that will phase it is my snap on air hammer. Haven't tried running a spray gun or blaster off it yet. Would probably get a secondary filter for it if I was doing an air spray gun. |