Through Spindle AIR

[ProductionPal]

Hmmm...

[Ztiggi]

Have anybody tried this yet?

i have TSC, but the sealings for TSC might need coolant for lubrication, i don't know...

air throgh spindle would be very useful to remove chips from holes while helical milling.

[Geof]

In the latest issue of CNC Machining magazine from Haas they have an article about an outfit making oil field equipment and it mentions they use air through the spindle so it must be okay at least at low speeds.

[Edster]

The okuma I have is equipped with tsc and it also has through spindle air, so it must be useful to some shops. It also came with an air blast standard

[HuFlungDung]

I've not seen the Haas TSC seal arrangement, but for through air, you really don't need the seal to seal, because if some air escapes up above, its not going to mess with anything. I wonder if there is a way to 'engage the seal' only when coolant is being used?

[Geof]

Originally Posted by HuFlungDung ...for through air, you really don't need the seal to seal, because if some air escapes up above, its not going to mess with anything....

This is true but if you have a contact seal made for liquid and you run it with air you can finish up melting things, as I discovered to my chagrin.

If they use a labyrinth seal there should be no problem.