Air Compressor Question ??? - BMW Luxury Touring Community
 
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post #1 of 7 Old Oct 18th, 2009, 7:09 pm Thread Starter
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Air Compressor Question ???

I am looking into getting an air compressor. I will be using it to tinker around on my MC, like filling tires, operating a table lift and especially changing tires and needing the air power to seat the tire correctly on the rim.

So what type of compressor should I be looking to get.

Gallons ?
HP ?
PSI ?
Oil base vs Not Oil base.

Is Sears Craftsman a good product for the money or something like HF ?

Any suggestions would be great.
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Marty Galison
Surprise, Arizona

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post #2 of 7 Old Oct 18th, 2009, 7:24 pm
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Re: Air Compressor Question ???

Marty
I have a Porter Cable 145 PSI, 15 gallon tank, 120V
seems to do everything I need.........5 years old now..........

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post #3 of 7 Old Oct 18th, 2009, 8:05 pm
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Re: Air Compressor Question ???

Here is my input. The direct drive compressors are louder than the belt driven ones. It is nice to have the 150 psi models for impact use for tires on the car. A 30 - 60 gallon tank will give you more time between cycle times and you will not have to wait for the compressor to keep up. If you are just filling tires on the bike and car, almost any compressor will work. If you are going to use air sanders, drills, paint guns you will need a larger compressor and tank. There are many decent "portable" ones on the market. If noise doesn't bother you, then go with the least expensive one you can get that replacement parts are available locally for. I personally have a 6 hp direct drive craftsman with a 30 gallon tank that works nicely for my portable That is 9 years old and working great. I also have a 7.5 hp 2 stage belt drive w/80 gallon tank for the shop. I have found that the horizontal tank model is easier to haul around the yard without tipping over. A friend of mine has the vertical tank on his and it can be a chore to haul on uneven surfaces like the lawn. It really depends on what you are going to use it for.

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post #4 of 7 Old Oct 18th, 2009, 8:26 pm
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Re: Air Compressor Question ???

As already stated, the direct drive oiless compressors are extremely noisy. The piston type, oil lubricated, belt driven are far less noisy, and will also last far longer.

I have a very old 2 HP Craftsman that has seen many decades of garage use, and it still works just great. I sometimes wish it would die so I could get a higher horsepower one though. I would love to have a full 5 HP, 3 minimum.

One other thing to watch for is that for some reason it has become allowed to label a compressor for it's "peak" horsepower, which is an absolutely useless rating. Look closely at the labels for "running" horsepower, which is how compressors were rated for decades, and is a useful rating. My son in law has a 5 HP direct drive oiless unit, which is rated 1.2 "running" HP. It is extremely noisy, and will not keep up with many power tools requiring a lot of waiting for pressure to build back up to a useful level. I hate being in his garage when it is running! The noise is very irritating, and it has to run seemingly forever to get the tank to it's full pressure.

Your stated use will not need a very large unit, but most find that after they have one for a while they expand their desired usage, and often find that they want something larger. I would suggest an oil lubricated, piston type, largest you feel comfortable paying for.

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post #5 of 7 Old Oct 19th, 2009, 2:41 am
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Re: Air Compressor Question ???

Quote:
Originally Posted by mgalison
I am looking into getting an air compressor. I will be using it to tinker around on my MC, like filling tires, operating a table lift and especially changing tires and needing the air power to seat the tire correctly on the rim.

So what type of compressor should I be looking to get.

Gallons ?
HP ?
PSI ?
Oil base vs Not Oil base.

Is Sears Craftsman a good product for the money or something like HF ?

Any suggestions would be great.
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Maybe the easiest way to answer, Marty, is to ask what do you want to spend?

I'll give you my set up: for everyday use i have a IR, "wheel barrel" style, w/a Honda gas engine. Highly portable, high output, and u can use anywhere because your not tied to electric power. $700 new; $300+ USED. Excellent value!

For the big jobs, I have two (2) Craftsman oil-less units, 60 gallons each. The reason I use these oil-less models is because they are "throw away" units, with relatively high air output. I can buy the whole compressor, used, all day long for $200-400. So when something goes wrong, repair is cheap and easy.

For the kind of work you're talking about doing, Look at a Porter-Cable 110v electric unit with a 20-30 gallon tank. Oil is more quiet. The extended warranty on these low-dollar units is worth it for piece of mind. Don't ask me how I know!

"Those who would give up essential liberty to purchase a little temporary safety, deserve neither liberty nor safety." (Some really OLD friggin' White dude who couldn't have possibly known what he was talking about!) WARNING: Official HATE speech!
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post #6 of 7 Old Oct 19th, 2009, 7:37 am
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Re: Air Compressor Question ???

I had a similar need several years ago, but didn't want to add another thing to the garage, and happened to have 4 SCUBA bottles around for diving so - I took an old first stage that wasn't being used, had a local hydraulics shop rig me up a 10 foot ( if I had to do it again I'd make it about 16 feet or more) hose to connect the first stage on the bottle to a tire chuck.

It really works out well for small jobs. It initially hold about 3,000 PSI and I generally get it refilled once every other year or so. It's portable, makes no noise and fills up a tire pretty quickly. Downside is that the bottle has to be inspected each year and Hydro tested every 5 years. If you happen to be a SCUBA diver and have a few bottles around, you can buy from most dive shops an air chuck that will plug into the low pressure BC hose to have around for emergency air.
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post #7 of 7 Old Oct 19th, 2009, 8:58 am
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Re: Air Compressor Question ???

I have a Makita that is very quiet. I bought a rebuilt unit like the one in this link at a local Makita factory authorized service center for about $160. It was like new. I have no affiliation with Makita.

Jim S.
'07 SturmGrau K1200LT

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