Portable tire inflators?

A little trick we do with our trailers is install a quick- coupler into the trailer air tank. You can then plug in a short hose and air the trailer tires up from there. Using a short hose tied directly into the tank will get you a faster flow and give you more psi.

 

I have a glad hand hose. It is a bit of a pain but I don’t think I’ve ever spent more than 15min checking tires. I used an air hose at a truck stop once and it didn’t have more than 90psi. Might have just been bad luck. I would recommend just going low tech though with the glad hand and spend the money you save on lap dances.

 

Usually a couple beers gives a faster flow, but your way will work too!

 

Just put a regulator on the air line. Set it where you want it. Better the regulator, more accurate it'll be...but it comes at a price.

 

If you want 120 lbs do what m16ty said or use a bigger diameter hose from a tank on the truck. Or wait and wait for the truck compressor to cycle and cycle and cycle and cycle will make it eventually. I think it has to do with head pressure. Like a water pump looses the further it goes.

 

We bought a few a while back, have one in the pickup "just in case". I had a low tire in that thing, the tire was at 50 when it should have been at 60, so it took 10 minutes to inflate the tire and used a lot of battery power. I could have just reached for the air hose with shop air (140psi) but I was too lazy to do that, instead I remover my cooler, my tool kit and my radio stuff to get to the inflater. Now one of the guys used it for a truck tire, I think he said 40 minutes to get it up to 100, and then it stopped working because the battery was depleted.

 

Bought one of these for a sort of novelty tool: Automatic Shutoff Tire Inflator Gauge

If you have adequate air supply pressure and volume (truck or shop compressor), it does what it is advertised to do. Good up to 175 psi, but I've only done 120 psi or less for shop airing up the truck's tanks to check brakes and leaks.

 

This right here. And $30 for a glad hand hose that reaches all the tires. Done.

 

I run 120-125psi cold in all my tires, inflating off the truck air system I never get too much.
It can actually be a pita to get the full pressure if needing aired up....sloooow to get there.

 

I built my own air hose. bought a gladhand adapter, air hose and female end for it. I can air up my tires, fill up a portable air tank if need be, my Cheetah, and a stubby impact wrench if necessary