200,000 revolutions per minute?
Boggles the mind that this is 3,333 revolutions per second.
I'm not saying you're wrong but a quick check of a few LLMs says that 90,000 RPM is widely cited as the practical upper limit for current operational centrifuges in facilities like those operated by Urenco, Rosatom, or Orano.
900m/s is approx Mach 1.5.