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How do rocket launch sites obtain their liquid oxygen used for loading the oxygen tanks in the rockets?

A while ago I seem to remember reading something that implied SpaceX had equipment to generate liquid oxygen on-site from oxygen extracted from the air. But I don't know the details.

What equipment is used? How quickly does it generate liquid oxygen (L/hr)? Is it stored for long, or generated shortly before using it?

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    $\begingroup$ It looks like your question is pretty-well answered at the proposed duplicate site, but there might be a new question in here somewhere. Have a look at all the answers there and if you see something not covered you can update your question and focus on the unanswered aspects. Welcome to Space! $\endgroup$
    – uhoh
    Aug 21, 2019 at 9:22
  • $\begingroup$ Re, "equipment to generate liquid oxygen...from the air." That's pretty much where all LOX comes from--distilled from liquified air. Check out airproducts.com. I don't know how many players there are in that business, but they're one of the biggest if not the biggest. If delivery of LOX by truck from one of their existing plants to your site is not economical, then I bet you can negotiate with them for construction a new plant on your site. $\endgroup$
    – Solomon Slow
    Aug 21, 2019 at 15:06
  • $\begingroup$ Read wikipedia about cryogenic air separation. $\endgroup$
    – Uwe
    Aug 23, 2019 at 9:00

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