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Posted: 4/11/2007 6:48:37 AM EDT
Ok, I'm getting set up to some metal refinishing (Parkerizing) but, I'm on a budget. I was wondering what kind of air compressor are you guys useing. Sears, Harbor frieght, etc... How big, cfm rating, etc... And finally, the price. I know bigger is better, but what can I get by with?
Thanks in advance for your help!
Link Posted: 4/13/2007 4:11:13 PM EDT
If you are just going to use an air brush, then a small pancake will do fine. If you are going to do media blasting, a single stage 60 gal is OK but 80 is better. Check Craigs list for used ones. Also, the traditional oil bath is better than oil-less. Good luck!  
Link Posted: 4/16/2007 7:26:51 AM EDT
So how much are one of those going to run me?
Link Posted: 4/20/2007 8:15:02 AM EDT
Nobody has compressors? (for media blasting)
Link Posted: 4/21/2007 4:48:16 AM EDT
lI feel that a compressors SCFM rating is more important than tank size, although  a big tank is desireable. Usually more HP = more SCFM. Blasting uses a lot of air and recovery time and the ability to supply a steady volume/ pressure is important. When your pressure and volume drop, you want it to recover quickly or you will spend a lot of time standing around.  I think SCFM is a measure of the volume of air a compressor can maintain at a given pressure. I recently saw  a flyer from Harbor Freight that was advertising a single stage compressor with a rating of around 10 scfm at 80 psi for around $400. I also saw a similar one at Lowes. You could also look for a used one which is how I got my present one. It's an IR two stage with 80 gal tank.  My first compressor was a Sears 1hp with about a 12 gal tank. It's max pressure was 90 psi. With my blasting set up, it would use up the initial air in about 5 seconds and steadily drop all the while it was running. It would drop to around 40 psi and hold steady. It took a long time to blast a barreled receiver. It was frustrating, but it did do the job done. With this kind of use, I don't think it would have lasted very long. Also match your blast gun nozzle size to your compressor output. Smaller = less air useage. Also get an oil lubricated compressor as opposed to an oil less which is very noisy.
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