Air Compressor recommendations

**Ranga** · 14th April 2018, 06:22 PM

I'm looking at implementing a compressor to manage by rear airbags and tyres, and possibly the odd air tool (but not probably). I already have a 6 litre tank fitted (rated at 400 psi). I'd like to cram as much air as possible/practical in there, to allow the quietest inflation of the air bags when leaving campsites to not bother others, and the quickest inflation of tyres after airing down.

What would be handy would be a graph of volume over time to the maximum PSI that compressors can deliver (if this is feasible).

A leading contender is probably the ARB twin. It's capable of 150 psi, with a 100% duty cycle. Anyone know how long it would take this compressor to fill the 6 litre tank from 0 to 150 psi? Also, would this compressor be able to do more than 6 litres @ 150 psi comfortably?

**weeds** · 14th April 2018, 06:54 PM

I’m it sure the ARB is the quickest out there but I’m happy with mine now that I let it breath.

You need a pretty big receiver before it make inflating tyres any quick.

**DeanoH** · 14th April 2018, 07:03 PM

I can't help you with any graphs but I did install an ARB twin cyl air compressor in the Oka several years ago. The main criteria in its selection was its 100% duty cycle and its robust construction. The only down side was the absolute garbage relays used (one for each motor), they did not even last till the first time I needed to use the compressor

The corrugated drive along the Anne Beadell Hwy from Coober Pedy to Emu had caused both relays to rattle apart internally. Fortunately they are conventional automotive relays and replacing them with quality ones solved the problem and the compressor hasn't missed a beat since. I use it to air up/down the 325/85 R16 XML's on the Oka and although it takes some time to do so (no air tank) it doesn't falter. I don't know how many litres of air it pumps to air up 4 of these tyres from say 25 psi to 70 psi but I reckon it's a fair bit.

I also bought the ARB air hose and gauge kit with it but found that it used some weird ARB propriety fittings. Fortunately the Supacheap shop in Kununurra had some conventional size fittings that fitted the weird ARB thread so all was good in the end.

Deano

**Dorian** · 15th April 2018, 11:01 AM

Originally Posted by Ranga

What would be handy would be a graph of volume over time to the maximum PSI that compressors can deliver (if this is feasible).

A leading contender is probably the ARB twin. It's capable of 150 psi, with a 100% duty cycle. Anyone know how long it would take this compressor to fill the 6 litre tank from 0 to 150 psi? Also, would this compressor be able to do more than 6 litres @ 150 psi comfortably?

From the users manual - last page.

http://arbusa.com/uploads/PDF/newPro...A12_retail.pdf

ARB_PressFlow.JPG

Looks like all (even the single) will do at least 10LPM at 150 PSI
At thise rates the twin would (in theory) fill a 6 litre tank in way less than 30s.
Current draws are impressive.
Baby sitting some production staff at work so have time on my hands.

Cheers Glen

**martnH** · 15th April 2018, 05:27 PM

ARB use EU air fittings.

I guess that is where they have theor compressors manufactured

I like my twin ARB air compressor, especially with a blow gun.

**fitzy** · 15th April 2018, 05:48 PM

I've had a thomas for 20 yrs still works fine although i felt it was slow.
I then made a endless air type set up with tank, but quite involved.
Now have the Thomas and an arb and its as fast as the engine driven one and you can do two tyres at once,

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