Then your 2.2 kW / 1.5 kW ratings do not mean the mechanical power delivered at the end of the shaft, like IEC 60034-1 demands. Obviously what you mean with your ratings of “1.5 kW” and “2.2 kW” is the so-called apparent electric power.
That means that the mechanical power delivered at the shaft is much lower than with real 1.5 kW or 2.2 kW spindles. What you give is the power that is drawn at the input. IEC 60034-1 requires another power rating: The mechanical power available at the shaft.
See here for example calculation. There you see that a spindle that really delivers 2.2 kW mechanical power at its shaft draws more than 3.8–4.5 kVA (and would require a 22 A fuse at 220 V)
In the example linked above, I show that a chinese spindle manufacturer does the same: Offering with power consumption, not power delivery. Like the Makita, where they give the hp that it consumes, not that it delivers, like explained here
Thanks for the reply! I do already have the Onefinity woodworker for roughly 4 years now (buildbotics version).
I’m considering upgrading to the spindle, from my makita router. The tool changer which was introduced right after my post makes it even more interesting.
Now with the latest info from Onefinity I should be fine running it on my 230V (if I plug the correct power cord in the c14 port). I have a 20A fuse on the group I use for the CNC, hence the 7.5A the “2.2 kW” version draws should be no issue.
Perhaps someone from Onefinity could confirm this for EU buyers?
80mm 2.2kw will fit on z-16 if it has the 80mm mount. We definitely recommend the stiffy if you install a spindle, especially if it’s the heaviest 80mm one. Z-20 isn’t as important, but would increase carving speeds.
What is the maximum usable Z height can I expect with the 2.2k 80 mm spindle on the elite? I want to use a 6", 1/2 shank end mill for a carve that will need 5" of clearance. I plan to use risers to get the X rail out of the way but still not sure if the spindle will have enough Z articulation due to how the stepper motor is mounted. I have the QCW so it is hard to go lower than the waste board.
