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Forum topic by Bob posted 02-13-2015 03:21 PM 828 views 0 times favorited 12 replies Add to Favorites Watch
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Bob

13 posts in 1169 days


02-13-2015 03:21 PM

Need some advise on a air compressor for my wood shop. Looking to run nail gun,spray misc air tools. I found and older compressor guys says all works well he has owned it for many years. Made by Ohio Boiler Company Dayton ,OH. not much infromation found on the web. Its a Delco 1-1/2 hp motor 80 gallon tank cast iron v-twin 2 stage compressor. Not rusted up working condition garaged weighs about 400 pounds? Asking 200.00 thought this might be a good deal any input would be great.

Thanks Bob

-- Bob,WV


12 replies so far

View DIYaholic's profile

DIYaholic

19180 posts in 2143 days


#1 posted 02-13-2015 03:29 PM

I can’t speak to the motor/compressor itself….
The thing to be careful of, with a used/older compressor, is the tank itself.
The condition of the tank interior is crucial. If it has rusted, it could possibly rust through.
Proper long term care is the question. Was the tank drained, of water, on a regular basis?
With it difficult to inspect the tank interior….
It is one machine, that I personally would only buy new.
Unless I knew the history of a particular machine.
I think a tank blow out would be catastrophic!!! I would rather err on the side of caution.
Of course, I could just be paranoid!!! ;^)

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

View agallant's profile

agallant

530 posts in 2354 days


#2 posted 02-13-2015 03:46 PM

I have had a Husky 20 gallon compressor for a few years. I just looked it up at HD and its $199. I have no complaints. Nail guns, blowing dust, air tools (which I rarely use), HVLP gun.

View jumbojack's profile

jumbojack

1667 posts in 2092 days


#3 posted 02-13-2015 04:26 PM

Just make sure the cfm output of the compressor matches/exceeds the demands of the tools you will be using. The air tools will be the most demanding.

-- Made in America, with American made tools....Shopsmith

View timbertailor's profile

timbertailor

1592 posts in 892 days


#4 posted 02-13-2015 04:37 PM



I can t speak to the motor/compressor itself….
The thing to be careful of, with a used/older compressor, is the tank itself.
The condition of the tank interior is crucial. If it has rusted, it could possibly rust through.
Proper long term care is the question. Was the tank drained, of water, on a regular basis?
With it difficult to inspect the tank interior….
It is one machine, that I personally would only buy new.
Unless I knew the history of a particular machine.
I think a tank blow out would be catastrophic!!! I would rather err on the side of caution.
Of course, I could just be paranoid!!! ;^)

- DIYaholic

+1

That is the reason most sell their old compressors.

Seems underpowered, as well, for a two stage and that size tank.

I suggest getting a 230V\2 stage compressor with about 5HP if you plan to paint. (Basically twice as large as you think you need).

The standard measurements for comparison are so many CFM at 90PSI. This is how you make an apples to apples comparison.

Good luck.

-- Brad, Texas, https://www.youtube.com/user/tonkatoytruck/feed

View bigblockyeti's profile

bigblockyeti

3668 posts in 1189 days


#5 posted 02-13-2015 04:47 PM

I have an old (63’) 80 gallon tank with a 7.5hp motor spinning a big Qunicy pump and before I got everything put together I performed a hydrostatic test on the tank to make sure it was safe to 1.5 times the rated pressure. This would be a good idea for any older tank regardless of size.

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DIYaholic

19180 posts in 2143 days


#6 posted 02-13-2015 05:17 PM

Yeti,
If you don’t mind….
What was involved in getting the hydrostatic test?

Where to get it done?
Disassembly?
Cost?

Inquiring minds, need to know???

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

View bigblockyeti's profile

bigblockyeti

3668 posts in 1189 days


#7 posted 02-14-2015 02:05 AM

I did it myself. Fill it up with water after plugging all holes, install a pressure gauge of at least twice the rated capacity of the tank’s working pressure. The next part is tricky, you have to be able to introduce only liquid as you raise the pressure. My method involved flooding a long pressure washer hose and cobbling the necessary high pressure plumbing together into the very top bung on the tank and while keeping the hose above the tank, regulating dry nitrogen into the other end of the hose. There was a ball valve installed between the end of the hose and the tank. Run it up to 300psi, close the ball valve and carefully release the pressure in the hose (I was able to do so with the regulator I have). Let it sit for 10 minutes or so (with the temperature at a constant) and check to make sure the pressure doesn’t drop or there’s a leak somewhere. I also measured the circumference of the tank which increased about 0.035” when under pressure. As for disassembly, it would be extensive for an already assembled compressor, especially from a plumbing standpoint, but the pump and motor wouldn’t necessarily have to come off. You could probably find someone that could do it for you by inquiring with local boiler inspectors. Cost, I have no idea on.

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DIYaholic

19180 posts in 2143 days


#8 posted 02-14-2015 03:09 AM

Yeti,
Thanks for the info….
I’m thinkin’ just buy new!!!

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

View Bob's profile

Bob

13 posts in 1169 days


#9 posted 02-14-2015 03:22 AM

Thanks for the reply’s a lot to think about. I agree my main concern is the condition of the tank not sure about me testing this tank. But I like older equipment don’t want to take a risk for sure. Maybe I should look into something newer here is a picture of the compressor I’m looking at.

-- Bob,WV

View DIYaholic's profile

DIYaholic

19180 posts in 2143 days


#10 posted 02-14-2015 03:32 AM

Bob,
What would a replacement tank cost???
Just thinkin’ out loud….

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

View bigblockyeti's profile

bigblockyeti

3668 posts in 1189 days


#11 posted 02-14-2015 03:40 AM

Does the tank by chance have an ASME info plate welded on it anywhere?

View Bob's profile

Bob

13 posts in 1169 days


#12 posted 02-14-2015 03:13 PM

I looked at some tanks not cheap. Would lean toward a new one at that price. I saw a plate on the unit the guy said it say’s MAX W.P. 200LBS THE BUCKEYE BOILER CO. 19 DAYTON OH 45. He lives three hours from me?

-- Bob,WV

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