I cant say I've ever used one and I've only seen a couple. I have a job coming up that will require an 18'. 3" tremme and an air cuff would work great for boomin from wall to wall etc.

 I've asked around a little about how much a sleeve type air cuff costs and it looks like I may go another 18 years without one. Unless of course $1400.oo was off the mark.

 (1) What do they cost? (2) Does anyone have one laying in their toolbox they'd like to part with? (3) Any locals here in my area that might consider renting me one for a couple month$?

 I already have air plumbed down the boom. I made one that works OK but it'd be nice to have the real deal. (looks better/more professional)    Thanks.  TT

We make our own.
Just take a big enough steel pipe that is about 1-2" bigger than the hose. Cut it about a feet long.
Drill some holes, one big for air coupling, and 4-8 small ones for a plate where the joint will be.
Find a big hose, like the one used for water (don't remember the english word),
glue on an air coupling, and glue the ends together and screw on the plate. Job done!
Set the pressure at about 4-6 bars and test. Should be working fine for alot less than 1400...
Might wanna weld some eyes on for a chain or something to hang it from...

Oh, just read the rest of your post and say you had made on already. :D
Yeah, nothing like the real deal. Like putz's, all rubber, looks good and is safe.

TT,i'm in the same boat.About the time I got out of pumping they were coming into play.It would be nice to see them more affordable.

I use one everyday, everybody loves it, cost me approx $1,800 Cnd works great !

 I made one to fit over the 3" hose before the tremme. I cut a 12" piece off the end of a 5" whip hose (wire bound). I used (2) 4" inflatable pressure test plugs (70psi) used for testing pipe lines. I fully deflated them and placed them opposite each other in between the 3" hose and the 5" sleeve (tight fit!) . The ball plugs have valve stems just like an innertube or tire. I removed the valve pins so air can be released, both are plumbed into a 'T' then to the air hose on the boom with a quarter valve and bleeder back at the truck. When air is applied the plugs inflate and pinch the 3" hose off. When the air is released it opens & flows. I was surprised that it only took 40psi to do the trick.

 I like that it's all rubber, besides some small brass hardware.   

 $1800 bucks just aint happenin right now so...

 Here's what I gots...

Looks simple enough TT and looks like it would work pretty good, Only draw back I see is having to be at the truck to pressurize it, nice to have a blow off right at the cuff too. The set up I use has and a small 3- 5 second delay on the pump as cuff deflates with a blow off at the truck and the cuff, works off the Pump switch on the remote.

 had mine about two years now putz 52-5 fitted my self took about two weeks of and on in between pumping and sleeping cost at the time £1200 ive made it to use 4" or 5" like your wallet woundnt leave home with out it if i dont use it that day i feel naked

Just got mine hooked up today looking forward to using it tomorrow looks like it is worth the money. cost $1800 than hose and fittings about an extra $200

for the best one out there email Timo timo@betongpumpar.se not only does he make them but if you have trouble with them he will fly to see you where ever you are in the world and his price is awesome

Used my air cuff for the first time today, makes life very easy. Will never go back now.

been using 1 for about six months.  (love it) going to be hard to go back without one.