>>2882810
>the closest I have even seen was some guy on youtube

Try "high pressure oxygen compressor". Turns up stuff like:

https://www.ultracontrolo.com/products/ultraceco-hpt

https://rockymachinery.en.made-in-china.com/product/nZptUOwCfFrR/China-Hospital-Oxygen-Filling-Oxygen-Concentrator-High-Pressure-Gas-Booster.html

https://amcaremed.com/products/oxygen-booster-compressor/

...all horribly expensive, of course.

>What size of oxygen concentrator do you have, and what kind of pressure and flow does it put out?

Something from outfit called "Extreme Oxygen" or something like that. No idea if they still exist, I got the thing off craigslist. It's a modified Millennium M10 medical concentrator. They just crank up the regulator and disable the pressure alarms, far as I can tell. It doesn't really have enough output for cutting. Pressure might be high enough, but I don't think 10l/min is going to do much. 2 of them might do it.

Invacare makes a booster pump that hooks up to a concentrator that CAN fill tanks to 1800/2000psi with their "home fill" system. No idea if anyone else has compressors geared toward consumer medical use like that. The fuckery involved in re-doing the plumbing to hook it up to a larger tank would be simple, but I have no idea if there might be some legal bullshit around that. Try at your own risk on that one.

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