Where to get a spindle

[kev]

2-4kw....!!! bloody hell, what are you thinking of milling????

haha, hmm well i have got an unused 3 phase 15kw inverter so i need a motor that will run with it, so what i will do is gear up the spindle, a 2 pole 3 phase motor is around 3000rpm, so probably gear it so the spindle runs at 12000rpm? at 50 hz, the inverter can go as low as 1hz so 240rpm at the spindle and as high as 170hz not that im going to run it anywhere near that!, so need a semi powerful motor to be able to get the low down torque.

i definitely want to be able to mill aluminium and im thinking it should be able to mill steel.