If I've calculated correctly, this means one will need 3.5 units consuming around 183MW of power to produce the required 140B/s of LN2, down from 55 units consuming 740MW
(x / 2048) ^ 2 * 100 = 2000
x ~= 9159
5700 * 9159 = 52.2MW per 2000 mB/t
If we need 6500 B/t, we'll need slightly more than 3 machines,
which means we'll probably actually need to run 4 machines considering Rotarycraft's wonky speed scaling when approaching 1 operation per tick. Actually, disregard that, I forgot it's possible to drop the torque without touching the speed.
I guess I'd run a gas turbine through a CVT set to 11x torque for each refrigeration unit, which is close enough. I suppose with enough junction cleverness you could also set up 3 refrigeration units at 2000 mB/t, and a fourth refrigeration unit at 425 mB/t off just 3 gas turbines, which might just
barely be enough.
That's a lot more reasonable than 60-something individual machines.