Hi all,
I'm designing a cnc milling machine.
The scope of this machine is for milling metals like aluminium and soft steel. But except metals I also want to be able to mill plastics and even route wood. In other words it needs to be very precise for small pieces of alu, steel or plastic and have a "large" working area, (750*750mm), for use on wood.
Now I'm looking at different type of spindels and don't really know wich one is best for wich application.
First one on my list is a Perske HF 3phase spindle with a power rating ranging from 0,3 to 1kW and a max speed of 24000rpm.. These seems te be very robust industrial machines.
A second option would be an HF spindle of the brand "Precise" with a power rating of 1,1kW and a speed ranging from 15000 to 60000rpm.
These units on the other hand seem really fragile in comparison with the Perske spindels.
The third option is an HF spindle like the "Precise" one but from "Fortuna".
I suppose that option 2 and 3 are more precise than the Perske spindle, is this true? Also what difference is there between a spindle at 24000rpm and one at 60000rpm??
Is it possible to use one of these to cut all above material? I heard that aluminium and plastics needs slow speeds, while wood needs high speeds with lots of power? Is this correct? And what about steel?
Wich one would best suit my needs do you think??
Many thanks in advance.
Regards,
Qeuntin