What is the largest tool you run routinely on your high speed 24K spindles in aluminum.
For me I do run (extra short) 1/2 inch spot drills and chamfer mills at high speed, but my tool of choice for rough and prep is a 1/4 inch AlumaCut from Rogue Systems Inc. I surface and do a deburr pass with one on every job on those machines. At high RPM with flood coolant they can surface a plate significantly quick. Not as quick as a flycutter in my slower spindle machines, but pretty quick nonetheless, and I can keep them in the power band of the spindle.
I saw the little face mill from that Datron, but I'm not buying anything Datron. I once contacted Datron to ask about the price of a machine, and they didn't tell me. They basically told me they didn't know if I was good enough to own one, "but keep watching our videos." Yeah, screw Datron. (I don't watch their videos either.)
There is a little shell mill holder in the spindle taper I use (ISO20), but that strikes me as just a bit to much for my 1.8Kw spindles. At the very least I might have to slow down my spin up. I'm set at 13 seconds now. I do have a bunch of ISO20 ER16 and ISO20 ER20 tool holders, and I push them to 24K all day long every day.
Here is why I got here. I have a job I can cut on the bigger mills, but it will take all day, or I could cut it on the smaller high speed mills in a couple hours. If I could push just a 1/2 inch end mill for my surfacing and deburring operations I could just over reach enough to do the job on the smaller machines. I'm going tp try it anyway. I ordered some 2 flute (I prefer 3 generally) "stub" 2-1/2 inch carbide mills to be able to calculate it all in spec and capability according to HSM Adviser. Typically I only have to surface off .01 inches to get a flat start, but still these mills are pretty heavy compared to anything else I run on those machines. Even the spot and chamfer mills are much shorter. Before anybody says surface on one and finish on the other, there are important surface features only a couple thousandths deep. Its best to do all important work in a single setup. I already will rough some stuff on one machine, and finish on the other, but the surface relationship to everything that follows is important. Single setup from that point forward is best practice. Reindexing is an option since atleast they will be in the same vise, but its still best to do all the important work in a single setup.
I added that last bit not so much for comments as for background only. I am curious to know what YOU are running if you are running high speed spindles.
Yeah, I know I ran into a dead end eventually pushing these kinds of limits in this group in the past, but you all have years more experience since then as do I.