anyone used this or have any speculations?
JUNK for the most part, and I am not even talking about the manufacturer.
Oilless compressor heads are high RPM, low stroke, pumps. They get hot as fuck, which breeds condensation getting into the tank and your lines. They are LOUD and annoying to listen to in the garage, and run all the time. the CFM isnt there to do anything other than blast an impact wrench for 10-20 lug nuts, before it kicks back on. Forget a DA sander, cut off wheel, and painting anything out of it will be an LOL.
$200 will get you a decent used compressor out of CL. might not be giant, but it will be a oil’d head quiet thump, thump, thump type compressor, not a WWWAAAAHHHHHHHHHHHHHHHHHHHHHHHHHH annoying as hell compressor.
What are you going to need one for?
http://albany.craigslist.org/pts/2969290194.html
wonder what that one is.
What you are looking for is a 2 stage compressor head or one driven by a pulley off an electric motor… not an electric motor built on the pump (like the oilless)
http://albany.craigslist.org/tls/2913197258.html
http://albany.craigslist.org/bar/2923791934.html
/\ thats a decent guy.
just need something to run basic air tools, blasting shit out, cut off, DA, air drills… so its a useless pos is what you’re saying.
I have one like that last one, its small and sucks ass… use a air blower nozzle and it drains in like 5 seconds…
edit- just want something that wont loose pressure in no time. and now that i look again, that blue one is actually not bad looking.
what about this ? ( and btw i apprecaite all your input kk)
http://www.harborfreight.com/air-tools/air-compressors/25-horsepower-21-gallon-125-psi-cast-iron-vertical-air-compressor-67847.html
Keep this in mind.
The tank is the “buffer” or reserve. The CFM that the tool draws will, through simple math, tell you how long a full tank will last with continuous use of said tool.
Then the CFM on the pump AT A GIVEN PRESSURE is how efficiently the pump will fill up the tank WITHOUT constantly drawing the air its trying to pump in through the use of a tool.
Its a balancing act between tank size, pump efficiency FOR A GIVE TOOL and how your using it.
I favor a good used compressor over a new junk one.
Air delivery: 5.8 SCFM @ 40 PSI, 4.7 SCFM @ 90 PSI
no bueno.
if your air tool uses 15 cfm at 90 psi lets say, the compressor will be working 3 times as hard as the gun is sucking the air out to keep up. You will have to use the tool for say 1 minute and wait 3 to let it catch up. (not exactly but you get the point)
Out of all the tools you want to use, the DA is the killer. Impacts, air blowers, and to a point cutoff wheels are not run for extended periods of time like a DA is.
I have one of these at my house for odds and ends use.
SCFM delivery at 40 PSI: 6.3 SCFM. SCFM delivery at 90 PSI: 5.1 SCFM
its loud and runs all the time it seems. it WILL NOT keep up with a small sandblaster i have there running 80 psi and about a 15cfm air jet… it will fill, shoot for about 20 seconds, and try to keep up, and 1.5 minutes later its at 45psi and not going anywhere.
Impact gun its ok, it will take 20 lugs off and a few more blasts (say doing a brake job) and it will kick on.
DA sander will be in the same boat as the blaster i mentioned… same CFM usage.
The thing that sucks, even if you dont mind the use it for a min, wait 3 for it to catch up hassle… is the heat it puts in the air, will suck in alot of moisture. where as the oiled 2 stage, long stroke type compressors run at a lot lower RPM and dont get as hot, as fast.
soab. so is this one junk too?
http://www.harborfreight.com/air-tools/air-compressors/2-horsepower-29-gallon-150-psi-psi-cast-iron-vertical-air-compressor-68127.html
its a little better specs wise. Oiled, little better @90 cfm. but at that price a used one off CL would hold better specs than that. But Chinese quality concerns me with that one.
A while back I bought an old IR Type30 compressor and motor for $150. Then found a 100gal tank for $100. $100 will get you a master overhaul kit to rebuild both cylinders with piston rings, bearings, valve fingers, gaskets, etc. $350 and a little wrenching and I have a 16CFM @ 100psi 100gal compressor.
Just poke around on CL and ask for the specs onthe ones in your price range.
OLDER IS BETTER. BIG TIME.
the oldskool cast iron hundreds of lbs bastards are bullet proof machines and fully rebuildable if something lets go.
also keep in mind those are probably OVERRATED specs wise.
FYI I remember a major company got sued recently over claiming a 5HP compressor spec, when it was nowhere near that efficient. i want to say it was even a craftsman too!
dude thanks for the help and great info/ breakin that down. I’m going to look for an older beast. Patience is going to be the key here. In the mean time, if anyone has one or sees a good one… feel free to let me know.