As other comments pointed out there seems to be an issue with max pressure it can produce. If it has to be run for hours on end it might actually be cheaper to get a local place to do it...(Not even considering the costs of maintenance and consumables, just power and initial price)

I've had parts made on a crappy waterjet once and we just tossed them all out due to extreme taper (Although the company was a massive piece of shit too, used the wrong material)