On-board air & CO2 systems? Ideas, experiences, etc.

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archaeology_student

archaeology_student

10 Year 15 Year
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What a beautiful day!

I was wondering what on-board air systems people have set up, or have used for inflating tires, or using air tools.

I've been looking at a few ideas.

Oasis HP 3000 Air Compressor (www.oasisoffraod.com)

  • 2.5 Hp at 12Vdc. and 5Hp at 24Vdc
  • outputs from 8 CFM @ 100 ps, with a maximum pressure of 125psi
  • Air Compressor is compact - 17”L x 7”W x 10”H, weighs 45 lbs, and comes with 10’ of #4AWG power cable
  • $1149.00 USD!
XD2000_04.jpg


PowerTank Air System (www.powertank.com)

  • $429.95 USD!
18.364.600x400.10lb_yellow_PkgA.jpg


I also found a webpage that has a review of 11 different air inflators (including the above two). The Tire Inflator Comparison webpage has a tonne of info and pics. What setups do you have?

:beer:
 
I use a portable 12v compressor I bought at a local shop. I have a little thread on it back several pages, I'll see if i can find it.

KMS sells some fixed 12v units, for a lot less than that OASIS unit. I think they have a big sale this weekend.



found it : https://forum.ih8mud.com/showthread.php?t=59630
 
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Is this for the BJ? On my BJ60 I mounted a york air conditioning compressor. I bought it in used in Vancouver and did an internal mod to prevent oil from escaping.

I bought a 90-120 psi pressure switch. Got pulleys from GandS. And an air tank from a local trucking place.

I built the bracket out of the original bracket modding it to match the 3b mounting holes.
 
Enigma, that's one of the one's that was reviewed

Toronado III review

Tonnes of great reviews... a little cheaper is the Viair 400p that is easier on the bank account.

BB, nope, this is for my rover :)
 
Enigma, that's one of the one's that was reviewed

Toronado III review

Tonnes of great reviews... a little cheaper is the Viair 400p that is easier on the bank account.
 
brownbear said:
Is this for the BJ? On my BJ60 I mounted a york air conditioning compressor. I bought it in used in Vancouver and did an internal mod to prevent oil from escaping.

.
Click to expand...

care to elaborate on that mod? i have a Sanden on my Toyaudi that i'm planning to convert to OBA.
 
BiffS said:
care to elaborate on that mod? i have a Sanden on my Toyaudi that i'm planning to convert to OBA.
Click to expand...

Sure not to hijack though.

The sanden needs oil to lubricate it I am told( yes??). So on the intake you have to install an air tool inline oiler. On the outlet you install an oil/water/air separator. Cause you don't want tool oil in yur tires.

The outlet pressure with a good quality hose withstand high temps air goes directly to an airtank of choice.

on the airtank(with multiple outlets) you run a small 1/4 air hose up into the engine compartment. On the hose you install a small 3 way manifold. One outlet gets a blow off valve, one a gauge, one for the pressure switch.

The air tools will get there air from the tank.

You wire the electrics like this. Fuse at the battery(or fuse panel) to a switch on the dash, then to the pressure switch, then to the air compressor clutch. So the ground is at the air compressor.

The pressure switch allows power to the compressor to 120 psi, then turns off the compressor. When the pressure drops to 90 psi the switch comes on again.

If you wire an electric pump instead of the engine driven one you need a relay. Then the pressure switch controls the relay for power to the compressor.

I think on a magnetic clutch on an air compressor it does't require a relay. All the switch should handle the current draw from the air compressor. You only use a relay if the switch would burn out from the high current draw. A relay is just a remote activated larger switch with bigger contacts meant for larger current draws.

Hijack over....
 
arch_student... that electric pump at the top is pretty big power. The current draw is going to be huge. I imagine you are going to see similar battery drains as a winch. So extended run times are not going to happen with a small alternator.

You might be able to downsize the compressor with use of a large airtank. Before you need the air on a trail you flip the switch and charge it up. Probably a few tires can be re-filled with 5 gallons of 120 psi air.

The ARB compressor is much smaller and is designed to be run continuous so your alternator can keep up.


I can see how the large one would be nice for instant pressure though.
 
brownbear said:
Sure not to hijack though.
The sanden needs oil to lubricate it I am told( yes??). So on the intake you have to install an air tool inline oiler. On the outlet you install an oil/water/air separator. Cause you don't want tool oil in yur tires.
Click to expand...

Hijack reply. Brown Bear, the Sanden can be modded so you don't need the separator. I am planning to do the same on my Safari - when I get some time and money. This thread here is about the most comprehensive I have seen: http://patrol4x4.com/forum/showthread.php?t=8897. Just follow Old Mav's directions. The hose running from the pump needs to be able to take the heat the Sanden puts out. But the Sanden itself is cheap. There are lots of them in all kinds of vehicles. Its all the bits and pieces to build the system which cost $$$. John
 
Canucksafari,

I read oldMavs post. Too me he is describing the mod I did to my York style pump. I did this mod. But I was under the belief the sanden we have is not that style of pump. He may have a different market sanden. Maybe one built by York sold as a sanden???
Is it shaped like a york where it has an oil resivor in the bottom, like a york? If it is just round modern looking A/C pump then I am sure you need to have a way to get oil into it. Or if they are cheap run it without oil. When it craps out get another.....???
 
Nope, it is definitely a Sanden. Old Mav (Peter) told me that any one of the Sanden SD5xx series pumps will work well in a 12 V application. However, as my truck is 24 V and an SD514 or an SD718 used in heavy equiptment running 24 V would be best. If not, I would have to order a 24V coil for it or run a reducer that could supply it with 6 amps constant. In his post #9 on the thread he says how he stops most of the oil from coming out with the air. What oil does get out settles out in the tank which he drains off every now and again. Then he tops up the oil/grease in the compressor when ever he remembers or sees smoke. :D He has been running this system for quite a few years now. I have read a lot of his posts and its clear he doesn't BS around when it comes to mechanics or recovery equiptment. He's a marine diesel mechanic and a boat builder by trade. I still have the pics Peter e-mailed me of the system. If you want to see them shoot me a PM with your e-mail. Cheers, John
 
I was just browsing through the latest sales flyer from KMS, and they have a 'Viair' 12v compressor for 299.95 (it was 50 bucks cheaper on the 15th/16th).
200 PSI max working pressure
100% duty cycle @150 PSI
50% duty cycle @200 PSI
1.7 CFM
19 amp max.

regular price is 399.95
 
Very cool, Phil! Have you tried out the compressor yet?

I put together a CO2 inflater last year, have not had a chance to even try it out yet. I probably bought way too much regulator, and in the end I probably didn't sae much over buying one of the commercial solutions (and I still need one of those nice mounts for anothoer $50)
 
bj70_guy said:
Very cool, Phil! Have you tried out the compressor yet?

I put together a CO2 inflater last year, have not had a chance to even try it out yet. I probably bought way too much regulator, and in the end I probably didn't sae much over buying one of the commercial solutions (and I still need one of those nice mounts for anothoer $50)
Click to expand...

I used it on the May long.
Dropped the pressure to 12psi, then began refilling to 32psi, took about 2 minutes a tire... better than a lot of filling stations. I very seldom need a winch, but when you do there's no substitute.
On Sunday during the May long, a few of us took the day off (from wheelin'). I rounded up a few volunteers to help me spool out the new cable then re-wrap it, under load. The load was Rob, Rod, Barry and Chris. Couldn't have had better anchors :beer:
GG
 
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