[MoonDog]

This might seem like a strange question, but bear with me,

Can I use one of those home breathing oxygen concentrator / compressor machines to fill standard o2 bottles like you'd have in an oxy/gas torch setup? The concentrator is a pretty sizeable home unit with about a 4' tall bottle on it, looks like a standard fitting but I didn't have one of my torch tanks around or a reg to compare to.

Has anyone done this before? Will me trying this result in some kind of event worthy of lawn chairs and PBR?

 

[MQYJ]

It likely won't be able to compress the O2 to the 2200 psi that a normal bottle is filled too when you get them at the welding supply. But I'm just guessing so I may be wrong.

 

[PTSchram]

IIRC, the flow rates are stupidly low as well. It would take ages to generate enough to fill a tank. might be able to generate enough to burn for a minute or two, but I wouldn't expect it to do much more than that.

But, it's been 15 years since my mother was on one so I've forgotten a lot.

 

[87JeepWrangler]

not to mention that those are relatively expensive to run i believe.

 

[casement]

Oxygen concentrators with boost pumps exist, and you could adapt them to fill larger cylinders or use medical cylinders instead. It will take some searching to find a used one, but they are available via the internet. Search "used oxygen concentrators" and similar.

You can adapt medical cylinders for cutting torch use:

http://www.ford-trucks.com/forums/878472-portable-oxy-propane-setup.html

Direct setup for light gas brazing or welding with tip info:

http://www.chaski.com/homemachinist/viewtopic.php?f=12&t=87931&sid=757d51011bae4abeab53d3ac3f08b04d

 

[palmerwerks]

Look in advanced diver or wreak diver magazine.several adds for o2 boosters,rebreather owners use them for o2 and dilutant tanks.

 

[MoonDog]

kickass, thanks!

Maybe I should have been clearer since some seem to have missed that I do have one of these machines and it does have a large high pressure bottle on it. Now we just gotta wait for granny to fall asleep in her chair in front of the TV for a while so we can hijack the thing...

 

[Todd W]

kickass, thanks!

Maybe I should have been clearer since some seem to have missed that I do have one of these machines and it does have a large high pressure bottle on it. Now we just gotta wait for granny to fall asleep in her chair in front of the TV for a while so we can hijack the thing...

I`m picturing a news story about a suffocated grandma

 

[Todd W]

the links above are great info.
im def gonna keep an eye out now for a concentrator :laughing:

 

[MoonDog]

I`m picturing a news story about a suffocated grandma

Relax I was just joking, she's already dead otherwise we wouldn't be trying to figure out WTF to do with this thing.

 

[Todd W]

Relax I was just joking, she's already dead otherwise we wouldn't be trying to figure out WTF to do with this thing.

send it here... im sure can find a use

 

[Rory Bellows]

Relax I was just joking, she's already dead otherwise we wouldn't be trying to figure out WTF to do with this thing.

Usually those machines are not owned but instead rented from a medical supply place. My father had one. Easily refilled the smaller bottles. It was returned when it was no longer needed. I would make sure it's not rented before all your plans are wasted.

 

[khammer042]

I do it all the time with a concentrator and the home fill 2 addition. Was trying to add a pic but can’t I mean it takes like 10 hrs to fill a small tank but it works

got pics added it took some jerry riggin but works none the less

 

[jeep_boy02]

Thanks for reviving a useless 12 yr old thread. Ima go look for one of these at a flea market now

should be wrenching or wheeling but here I be