Quote Originally Posted by Jonathan View Post
Er, don't see what all the fuss is about - it's only rated for 6000rpm. Unless some of the others in that table are also ATC spindles...
It looks like BT30 taper tooling is capable of much more than 6000rpm, so it makes you wonder why that spindle can't do it - is it just not balanced very well, or cheap bearings? That would explain the price.
Try making a real ATC with ground and hardend spindle for less than £650 I can't imagine it would be much cheaper and certainly no bettter.

But I do agree the 6K is a bit on the low side for some jobs 10K minimum would be nicer, 30K Woopie dooo.

Thanks for offering about asking for translation, yes please.