Hi,
I'm currently running a 5.5kW 3-Phase spindle with a Mitsubishi FR-D740-120-EC VFD. I want to switch this CNC router to solar power and I don't really want to invest into a 3-Phase inverter(s) since the servos are run by Mitsubishi MR-R-70AG-KH003 drivers and these can be powered by a 1-Phase power supply. I don't know the name of this air-cooled spindle either since I bought this machine used almost 10 years ago and there is just a generic label with the CNC manufacturer.

I would like to buy the best Chinese spindle and VFD I can get from Alibaba/AliExpress. Preferably a water cooled one a preferably one that can go above 24 000 rpm. I know most of these spindles are only 2.2kW and I'm ok with that. Or maybe I should just buy the spindle from China and the VFD locally from Mitsubishi or other reputable seller?

Any suggestions?