Has anyone got an Omega supercharger? Are they good?

I've got one, had it about 6 months now put about 20 hours on it now, my 25 Cal really goes thru air. I've had one issue which was just a o-ring in the hose connector that comes with the unit and had a bunch so it was not problem. I love it. Not the quickest tank filler when it comes to the 4500 PSI 88 cubic inch tanks but I can't imagine life without it now. I use to goto pomona air and got topped off every 3 months with my .22 Cricket. Now I fill my tank up every two weeks and maybe more if i goto the range.
 
I had one and sold it to replace it with a Coltri Americas Gas powered compressor. MCH-6/SH. It has a Honda engine fills my 88cu ft tanks in about 20 mins from empty. Topping off from partial in about 5 minutes. Its also sold as the gas powered Daystate. Cost is $2900.00 direct

The Omega has issues I didn't want to deal with. 

The Coltri is easy on parts and service if needed.
 
I bought one early spring when I purchased the 25 cal. air ranger and 22 marauder pistol for my son. Only ten hours to date but no problems and it's more compressor than we would ever need. You could easily go in with 5 or 6 shooters and keep everyone supplied as we have shot thousands of pellets each! We can target shoot for 5 or 6 hours and come home hook up the cylinder and 40 to 45 minutes later it kicks off on its own, no regrets!
 
I'd say it should be about 6 liters (0.21 cubic feet)
in metric it's an easy equation, don't know it in imperial:

He fills from 3000 to 4500 PSI. That equates from 200 to 300 bar.
So the pressure difference is 100bar. (Not really a mathematical difference but literally an addition (of compressed air) in this case..)

In a 6 liter bottle to increase the pressure by 100 bar you need to put in 6x100= 600 liters of volumetric air. (That means 600 liters of air at 1 bar (one bar equates roughly to 29.92 inches of pressure, so your regular atmospheric pressure)
The compressor does roughly 10 liters of volumetric air per minute. So 600:10= 60. So it will take around 60 minutes.(it will not be exact that amount as the compressibility factor comes into play at higher pressures, but it's a close estimate.)

Guys don't you just love metrics! ;-) (hint hint!)

ps. The unit of bar is not a real metric unit, that would be the "Pascal" but they have the same value (times 100,000), so that is why everybody still uses that denominator. (Altough in aviation we DO use the (hecto)Pascal nowadays)
 
Hmm, there's an interesting one.

So it seems that the '"naming convention" between EU (or rest of the world) and US about tank volume is different too.
We call the size of the tank exactly what it's volume is when filled with a fluid (which is non compressible) so you instantly know/can relate to the actual physical size of it
So 6 liters is actually 0,211 cubic feet (or 1.58 USG)

97 Cu ft equals 2746 liters. Which is an impossible number for a Scuba tank.
So it seems the US market calls the tank volume NOT the real tank volume but the pressurised value. (possibly to make it look more impressive, as you get a much higher number.
But besides being bigger it is really a totally useless number by itself alone, as you now need to know ALSO what the max pressure is the tank can handle so then you first have to make a calculation before you have an idea of it's REAL size.)

Like in your example of the "great white": if the fill pressure is max 200 bar (3000PSI) it's real size is nearly 15 liters. (2746:200=13,73 liters)That equals to a BIG Scuba divers tank.
But if the max fill press of the "great white" is 300bar (4500PSI) the real volume is 2746:300= 9.15 liters. And that is what mostly consider as a regular scuba tank size.


So there you go, another point for the metric system...(but don't worry the USA will NEVER switch, the building contractors sabotaged that years ago)
 
If one was to buy one, which one should you go with, now that you guys have the unit for awhile. I am very tempted to buy one, but reading about lots of hours on them which suppose to be testing has a concern to me. AOA is cross country for me so I need to be smart when I am buying one. Do they have any servicing done here near Pa.?? or must the unit go back to AOA
 
airborne, mine is the omega super charger that has the auto purge and shut off function. Not sure what the other model has. It comes with a complete rebuild kit that includes some extra pop-its for the check valve and extra burst discs. So far no one has mentioned having to do a rebuild that I know of and there are a lot of them out there running. There is a video on doing a complete rebuild if you ever had to. Chances are if it had no problem starting out, it would just set there like the rest of ours and do it's job. If you were worried you could ask Todd at AOA to take it out of the packing and check it out before they sent it. He runs their compressor side. Met him at EBR last year. Great guy. The thing I really like is I can hook it to my tank, start it up and leave and not worry. There has been a lot of questions ask about time to fill different tanks. That will vary depending on where you have the auto moisture purge set. I have an Omega 72cf tank and remembered to time it the other day. It took 44 min to fill 3000 to 4500. Hope this helps