O/T tool tech, empty freon canisters, what to do with them?

Here at work we have a bunch of the empty freon and zero air canisters laying in the trash pile. Anyone do anything with them? I hate to see them go to waste and every time I walk past them I have a felling that someone makes something out of them.
Anyone got any ideas?
They are around 10" around and about 18" tall with two handles so you could turn them upside down and stand them up on the handles.
post some pictures if you have something in mind or have seen something cool looking.

 

I've seen guys make them into air tanks for filling up bike tires... but the parts to make it probably coast more than they sell the bigger purpose built ones from HF.

 

It's kind of ghetto, but I used make my own adapters to use them as air tanks. I got 1" aluminum round stock, drilled and tapped it for the thread on the bottle fitting, then through drilled it and tapped for a 1/8 or 1/4 npt on the other end. Drill and tap in from each side for a quick disconnect (to fill the bottle from an air hose) and a pressure gauge. The taper the drill bit leaves when you drill for the bottle end seals against the bottle fitting's taper.
Not OSHA approved BTW

 

Is freon flammable? Weld up an auxiliary fuel tank that could be hidden somewhere on an RPU?

Roger

 

You could weld em together into a giant michelin man to hold your business's sign.

They must not be real visible or your local meth labs would've stolen em by now.

 

cut the bottom off of 4 of them. if there the kind I saw i think they had 4 bump type legs on the bottom. they might make cool center hub caps?

 

I've used 'em for target practice, more fun than punching paper.

 

I have a couple I cut in half and use as drip buckets or oil drain pans -30 lb jugs are a little small , 50 lbs jugs are great for drain pans , and the top half I have built a heavy duty funnel by taking off the handles , spout and installing a 1" ( or your choice of sizes) pipe nipple to fill small sand blasters and such. They are a lot better than a flimsy plastic one !

 

No matter what you do they have to be painted , if not disfigured so to not be functional as a freon container as there are fines ( and rewards ) for carrying a freon canister without proper license to handle such --

 

If you have spare 9", Olds or 55-64 Chev centre sections you need to store, cut one of the canisters down and weld a plate on top that matches the mounting pattern of the rear end housing.

You can then fill them with engine oil and bolt your spare centre section in and it will be kept clean and rust-free.

 

I drilled and deburred a hole in the top of one to the same size as the valve hole in a wheel...lathered up a tubeless valve with soap and poked it thru the hole backwards with a blunt screwdriver to help it along...clamped some old air hose (with a quick disco on the far end) over the male fitting on top of the tank valve...didn't even need a barb fitting, although it seems a little short at first glance.

10 minute air pig!!!

FREON tanks, the ones up here anyway, come with an embossed safety blow off in case its overcharged or in a fire.
It will tear open and vent the tank before the tank reaches the rupture point.
I fill mine to 135psi with no issues. Had it now for 5 or 6 years.

Just watch for water buildup inside that might turn to rust eventually.
Never did get any in mine though.
(I usually fill it on the first run of the compressor, just works out that way...so moisture isn't too big an issue.
The Comp has to heat up to make condensation...)

Who needs a fancy kit!?!? LoL

 

Hey,

I've seen them made into mini-bar-ba-ques-

 

Yep,great targets.Tie a bunch on a clothes line and make music with your .22.

 

Guy I know cuts them in half and makes them carb-cleaning buckets, since most 4bls wont fit into the gallon size the carb cleaner comes in.

 

You could make them into extended and frenched headlight buckets....

 

The ends of my lo-$ gas tank.

 

I'm using one to recess my distributor into the firewall.