Compressor size for tyre inflating

Tibbo

Member
Evening all

back for more advice.
What size compressor would you use for inflating tractor tyres.
I’ve seen the PTO ones but would a 4x4 in car compressor work. It maxes out at 80psi not sure about the CFM though.

or would it be a 50lt, 100lt, 200lt compressor?

thanks
 

clbarclay

Member
Location
Worcestershire
Having a big reservoir can is fine for jobs that need a lot of air for a very short time, such as powering an impact gun, but inflating big tyres can take far more air than a big reservoir holds and can then take a long time to build pressure back up if the pump isn't that big.

I prefer as bigger pump as possible on a reservoir that is small enough to be portable. 14 CFM pump with a 50 liter reservoir on wheels does me nicely.

Belt driver compressors are noticeably quiter than direct driven.
 

feilding

Member
Mixed Farmer
Location
At Home
I have a 50 Lt tank and 12cfm compressor. Bolted down in workshop but plumbed all round workshop and across yard underground to another shed to a washbay. I used 25 mm black water pipe. So with about 50 m of pipe and the tank my storage of air is good, compressor hardly runs with all that storage .
 

Wisconsonian

Member
Trade
all of the 12V compressors I've seen will take forever to add much air to a tractor tire. PSI on a tractor tire is not an issue, volume is. Only need higher PSI for some trailer tires.

If you want a mains compressor, I like a hitachi/metabo E99S, cast iron oil lube, not obnoxiously loud, enough pressure and volume to fill tires, and big enough tanks to use for quick jobs.
 

Nearly

Member
Location
North of York
A second air reservoir tank in the system can be useful if you have a tap to (dis) connect it to the system.
An inspector will only need to check one tank that they can see.
A ring main of pipe (of whatever colour) and high flow couplers can make a big difference.
Taking the valve out of the tyre makes it fill faster.
 

Tibbo

Member
I was thinking about something I can bring in to the field rather then something for the workshop. Seams CFM are all important on this job.
 

Nearly

Member
Location
North of York
I was thinking about something I can bring in to the field rather then something for the workshop. Seams CFM are all important on this job.
Have a second pressure vessel with a tap on the inlet and an outlet connector.
It can be enough to get a tyre home.

If you want to be truly mobile you need a compressor with a donkey engine on (or a tractor with air brakes).
I have used the air system on my wife's horse wagon to blow a trailer tyre up before but it takes a while. Shhh.
 

rob h

Member
Location
east yorkshire
We had a slow puncture on the combine last year and didn't want to stop before the field was finished. We topped up a half flat front tyre using a fully inflated super single using a made up pipe
 

Tibbo

Member
Saw this at a decent price might not be enough to do tractor tyres.
 

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Wisconsonian

Member
Trade
9 CFM is plenty to inflate a tractor tire. You can hold the chuck, better yet, get a remote chuck that you control with your head away from the tire, even better, set the regulator to the tire pressure and walk away.

12V pumps I've seen will add a couple PSI easily enough, or inflate a tractor tire from flat in an emergency, but you won't want to do it very often. Don't even think about trying a lorry tire to 100PSI with a cigarette lighter pump.
 

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