12v air compressors

**MovieDude** · 08-07-2016, 02:03 PM

Just looking for a portable unit for topping up my tyres. What minimum psi and flow rate do I need? Seen an Ozito model at Bunnings that puts out 150psi and 35L/min but don't know if that's enough.

**JW8885** · 08-07-2016, 03:33 PM

A bike foot pump is all you need to pump up your tyres. You don't need an electric unit unless want to inflate 4WD tyres quickly when going off road.

**MovieDude** · 08-07-2016, 09:08 PM

Ok I'll borrow my son's bike pump but I'll need an adaptor.

**Polar B** · 12-07-2016, 02:51 PM

Think it boils down to how often you think you're going to be needing it... More frequent use, if be buying something which has a storage tank. Or if it's just for emergency then a small unit which will take longer to pump.

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**Eaglen00b** · 12-07-2016, 06:09 PM

Originally Posted by MovieDude

Just looking for a portable unit for topping up my tyres. What minimum psi and flow rate do I need? Seen an Ozito model at Bunnings that puts out 150psi and 35L/min but don't know if that's enough.

It might well be cheaper to go to an auto shop eg Supercheap, Repco etc and pick one up. For light duty, you won't need to worry about thermal cut out so pretty much anything between the $50 - $100 range will do. Just make sure the hose fittings are secure and fit securely on your tyre valves. Pretty much any portable air compressor within that price range will be more than adequate for the tyre pressures you're running. The higher the air flow, the quicker you'll pump your tyres up.

I have a Twin Tongue compressor hard wired in my Troopy. Pumps tyres from 20psi to 38 psi in about 2 minutes. Rated for 57L/min @ 0 psi down to 34L/min @ 60psi. Pumps out about 40L/min @ 40psi. Not sure what the duty cycle is but it can happily air up four 4WD vehicles (16 tyres all up, various sizes from 31" to 35") from 20psi to 40psi one after another without thermal cut out. $1050 bucks installed though.

Also, invest in a good quality tyre pressure gauge (analog or digital, up to you but digital needs batteries which tend to die at the worst time just as you need it).

**MovieDude** · 13-07-2016, 12:21 AM

Good advice thanks.

**Eaglen00b** · 13-07-2016, 11:42 AM

If you're an RAC Member, Repco currently has a 20% discount storewide too.

**Hillbilly** · 13-07-2016, 02:45 PM

Buy one of these Have had 2 of them and they are pretty accurate

3 in 1 Tyre Gauge - Bushranger

You screw it on the valve and it has the ability to lower presures as well.
Autobarn and Repco sell them but abit more than $32 I paid $36 at Anaconda

It would be cheaper just to buy one of these and go to the servo Pump tyres a bit harder and let them down with this to correct level.
Cheap compressors are never real flash and the gauges on them are a lottery as well

**The_Hawk** · 13-07-2016, 03:08 PM

I've already got a bunch of Ryobi One bits and pieces so this was just another additional to the toy box:
https://www.bunnings.com.au/ryobi-on...lator_p6210400

I use it on bikes, balls, air beds as well as the car/van tyres on the odd occasion I've needed/wanted to. By no means a professional piece of kit, but for my home use it's brilliant.

On a side note, apart from the drills I use all the time, this is probably the most used of all the accessories:
https://www.bunnings.com.au/ryobi-on...-only_p6210343

**MovieDude** · 14-07-2016, 07:18 PM

Originally Posted by Hillbilly

Buy one of these Have had 2 of them and they are pretty accurate

3 in 1 Tyre Gauge - Bushranger

You screw it on the valve and it has the ability to lower presures as well.
Autobarn and Repco sell them but abit more than $32 I paid $36 at Anaconda

It would be cheaper just to buy one of these and go to the servo Pump tyres a bit harder and let them down with this to correct level.
Cheap compressors are never real flash and the gauges on them are a lottery as well

I have a good analogue meter so just looking for a cheap compressor to do the job.