Hi Phil,

I sent you my details in reply to your PM.

Regards the Spindle then it depends on the quality of the Air cooled spindle, the better ones are fine and very little difference between Air or Water cooled in terms of performance. Though my preference is watercooled because the duty cycle is virtually unlimited, so if you cut large 3D jobs that can take days not hours it does make a difference. The other difference is that you can often buy large Kw rated Air cooled spindles much cheaper than large Kw water cooled spindles.

The cheaper Air cooled spindles however have low duty cycles and poor fans so they quickly get hot and eventually die.! . . Avoid like Covid.!