Still researching
pressure washer as hydraulic pump
I'm currently pondering two conclusions
The seals thing is a myth. The o rings and seals are more than likely all viton (rockwell 80 hardness)which will be identical to most hydraulics and cylinders i,ve ever come across - its not as if they are irreplaceable.
However as you/Frank quite rightly pointed out is probably the wrong sort of pump, based on the information in the above link the pressure is dictated by the orifice and not the pumps ability to provide the volume and pressure. Oh well Water jet cutter it is then. just need a pressure amplifier and ceramic/ruby nozzles now.
https://hackaday.com/2017/05/31/a-wa...essure-washer/
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