Hi,
I purchased a 2.2kW 4 pole watercooled chinese spindle + Filing inverter, cutting a hardwood with a 1/2 2 flute @ 5-7mm doc 7mm stepover 2500mm/min 10k rpm the spindle would get dangerously slow to the point that it would stall if I didn't stop it.
As it turns out the inverter was advertised as sensorless vector capable but that is only up to 60Hz..
Cutting at 3mm doc with above settings the inverter pulls about 1.5A. Off the top of my head Gwizard calc estimated the required power to be approx 250w which I assumed it should be more than capable of at that rpm?
My question is would a good quality (branded) vfd capable of open loop solve my problems?
The spindle stayed quite cool to touch after 5 hours of cutting maybe 30 degrees on the outside jacket.
Any help would be great thanks