Would anyone be able to start me on the right track as far as spindle selection. I would like to build a test stand to do spray pattern testing, no cutting. I need a RPM of at least 12,000, it must accept HSK A63 tool holders (can clamp manually or with collet). The spindle selection will drive the rest of the stands design. Any help would be greatly appreciated.

Would anyone be able to start me on the right track as far as spindle selection. I would like to build a test stand to do spray pattern testing, no cutting. I need a RPM of at least 12,000, it must accept HSK A63 tool holders (can clamp manually or with collet). The spindle selection will drive the rest of the stands design. Any help would be greatly appreciated.

At this speed, I suggest an insight into balance may be prudent.
http://en.wikipedia.org/wiki/Centrifical_force