To be honest, I would not normally pass on 2nd hand info, but this is my Father in Law's take on his Airmax compressor and I figured it may be helpful. It was leaking oil so badly it would have never run for a whole fill. It required a complete rebuild prior to operating it. He did thread the intake for a filter which he says worked fine (1/4" NPT). After the rebuild he describes it as a "slick little compressor". Keep in mind he owned and operated an air compressor business in S. CA for 40 years and may have more abilities in this realm than the average bear. He attempted to contact MRod to no avail. Hope this helps!!
Quote from: calixt0 on March 02, 2016, 11:01:37 PMI filled my 80 cf scuba tank from 0 to 3000 psi in about at 25 mins. Air smelled but no other problem . Other than my mistakes.WOW - that's 3.2CFM. So 2 guys have reported 3.2CFM fill rates and all the others seem like they are in the 1-1.2CFM. The disparity between the fill rates seems a bit odd, I wonder why?
I filled my 80 cf scuba tank from 0 to 3000 psi in about at 25 mins. Air smelled but no other problem . Other than my mistakes.
Yeah I would stay as far as possible from this vendor. Charged a customer 15% restocking fee when he returned his compressor that he never got to work.
Go over to the TAG forum. There is a whole bunch of info. One guy has went thru it and documented it all with picks and what to fix.
I'm pronouncing the machine. While I can get it and running (again), I don't think I'm putting in any more effort on this compressor.The Great White filling trial uncovered enough issues that I won't be using the compressor for filling a gun let alone a tank. Far too much oil gets pushed through the air. While the water separator followed by JB's air filter clears it out, it's simply too much for me to tolerate. I had to vent the garage because each venting cycle was filing the air with suspended oil. There is nothing II can do to the machine to stop this from happening. Speed was great. Took about 80 minutes to reach 4100 in the Great White. That is with bleeding the separator and JB filter every 4-5 minutes at beginning. Every three or so near end.Had dramatic filling of air into water cooling system when 4100 psi was reached. The o-ring separating the high pressure cylinder from the water jacket had blown out. That ring is right around the high pressure inlet wafer valve. Mechanically, I don't like that type of seal in such a high temperature and pressure location. It's going to be prone to repeated failure even if I replace the o-ring.Lot of carbon buildup on the high pressure rings even with just 80 minutes of run time.Air in tank post the JB filter is without odor of oil and no water vapor release with venting in inverted position. The JB dryer goes its job!I started this experiment knowing it might not work out. I'm lucky that I can scrap the machine and move on.I did the experiment, so you don't have to.Yes, I still think it can fill just a gun, but I would not be relying on this for repeated filling of big tanks.Filtering works for improving its final air quality, but you have to vent during filling to bleed out moisture. That aerosolizes a lot of oil with each bleed. I can get the compressor running, but like I said, I can't stop it from putting out all that oil mist.Because of this issue, I'm not going to get it up and running again for just filling my Vulcan.I want to be able to breath the air in my garage and I doubt the suspended oil vapor is good for my health.Guy
Sounds like this compressor is worthless. Never buying anything from Mrod.
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