which of these sears compressors would you buy ? I'm just learning body work and painting skills. Would either of these suit my needs. I'll just be using it at home and not professionally
just for my own projects. What do you think?


http://www.sears.com/sr/javasr/prod...pid=00916561000


http://www.sears.com/sr/javasr/prod...pid=00918419000

Thanks for your opinions
derwood3

go for the oiled unit.

oilhead for sure...I wouldnt have an oilless

oiled

oil unit

What makes the oiled better? I am not sating it's not just wanting to know why so many jump out and say oiled right off. My small unit is not an oiled unit and has been working for years with no problems.

Something to consider. I found this on vacuum pumps but also carries over to compressors. The thing to consiider would be location. If the compressor would be isolated I would probably go with the oil. My personal preference would be go with the oil. Another thing to consider is the amount of hours of use it would see. I also heard that the oiless is considerably louder than the oiled compressors.

As with compressors, the application normally dictates whether an oil-less or oil-lubricated vacuum pump should be used. Either type may be used in many applications.
Oil-Less - Oil-less pumps are almost essential when production processes cannot tolerate any oil vapor carry over into the exhaust air. They also can be justified on the basis of avoiding the cost and time of regularly refilling the oil reservoirs. This is particularly important when the pumps are to be mounted in inaccessible locations.
Modern piston pumps have rings of filled Teflon, which provide hundreds of hours of duty, depending on ambient temperature and air cleanliness. Diaphragm and rocking piston pumps are designed to be oil-less.
Oil-Lubricated - The oil-lubricated types have distinct advantages if proper maintenance is provided. They can usually provide about 20 percent higher vacuums because the lubricant acts as a sealant between moving parts. And they usually last about 50 percent longer than oil-less units in normal service because of their cooler operation. They also are less subject to corrosion from condensed water vapor.

Kevin

A couple of things to consider. The oilless have a shorter expected life under normal conditions. Altho the oilless has a higher psi rating, it also has a lower output rating in CFM. Most air tools are designed to operate at or below 150 psi. The cfm rating of the oil pump is 1/3 higher than the oilless one at 40 psi, and almost that much at 90psi. This could mean alot if you are painting, using an air sander or grinder.

I bought an oiless 4HP portable unit and it is ungodly loud, mind you it fires up at -40C and recharges very quickly with a minimum of water in the air. If you are going to use it for anything other than filling up tires get the oiled two stage, your ears will thank you for it. The little bit more you spend is definetly worth it.

I think I'm going to park mine outside in a dog house so I don't have to hear it in the garage.

my .02
i used an oiless and it sucked. they are loud and since it is oiless it produces hotter compressed air which can also cause problems.

Oiled unit is just a lot better, more rugged, application. I have been using and abusing one similar to the one below for over 10 years and it is still going strong.

HF compressor

Yup, I would also go with an oil unit. But I got mine at HomeDepot for $400. Mine is a 220v located in the corner of the garage. Used $30 in galvanized pipe to create a cooler on the wall behind the unit to condense moisture. Clean the trap each weekend. I have had it 12 years now. Put the extra money in plastic pipe and connections across the ceiling of the garage.

hr41pearl

Thanks for the advice. I got the oiled unit. I got sears to match the home depot price plus 10% of the difference.Got 10%of the remainder with the craftsman club card,got 20 dollars with a coupon in their newspaper ad.

Thanks Guys.

I dont have a 220 outlet, so which 110V compressor from HF would work to paint car, sand , etc.

220 is not hard to run, do yourself a favor and stick with the 200v unit. It will cost less to run and the motor will last longer.