For your class of work ideally you should have spindle speeds in the range of 4000 to 10,000 rpm. The IH is way short of this and running the gearbox at high rpm all day long is not a good idea anyway. You could of course strap a high speed router/spindle on the side. The Tormach at least hits the bottom end at 4,200 rpm. I think the reference to “short runs etc” in the Tormach website refers the issue of setting up time verses actual machining time. There is no automatic tool changer and the rapids are not particularly fast. I don’t think it has anything to do with durability. For higher rpms on the Tormach you could change out the 3ph motor for a 2 pole and relatively easily install a higher rpm spindle. But I don’t think the spindle would be particularly cheap.
So anyway for you class of work the IH is really a none starter so if you have to pick between the two it is has to be the Tormach.
Regards
Phil |