Chip Fan for ER20 Collet Nut

This is a chip fan for an ER20 Collet Nut

Chip fans are mounted on the spindle or on the tool being used, and when rotating (clockwise in this case), cause air to be blown down onto the workpiece - providing cooling and blowing away chips as they are created.

In the act of blowing air down onto the workpiece, the air forces on the fan blades push the chip fan up against the collet nut, keeping it where it should be. Having said this, a firm push fit is still desirable.

I have this one mounted on my 2.2KW Water Cooled Chinese spindle, as found in eBay. I have run it at 10,000 RPM and the air moved is prodigious - no need to blow compressed air anymore.

Please post your makes to show me how you went with it.... Very interested to hear how it worked for you on your machines, and if anyone has scaled it to work with other ER collets.

Let me know if you want another version for a different collet - the design is parametric so I can modify quite easily.

DISCLAIMER: