Recycling 5C Collets

[GabyFont]

Hi all,

Is there any company that recycle small diameter 5C collets and rectify it to a larger diameter or something? I'm in charge of a manufacturing area that uses a lot of those collets that ends in the trash after a couple of months. The largest diameter I use is about 5mm so there is plenty to rectify.

[CalG]

Are only the bore sizes worn? Do the outer contact/closing surfaces also need to be renewed? Internal threads for stops etc.

Are the sizes needed in nominal .5 mm increments? That is, if a collet were originally 3mm, do you also use 3.5 mm sizes? The steps could be more or less, but significant material removal adds to the rework time.


Regards

Cal

[extanker59]

I think I read in a brochure a while ago that Hardinge reground used guide bushings that you sent them. Maybe they do the same for collets?

[GabyFont]

Thaks for the replys guys.

Dan, the wear is mostly in the bore size. The increments that I use are a few tenths (.0001).

Ext59, I'll chek their site. Due to our quality policies it is probable that we are not able to re-work them and so I was thinking like someone that bought them to re-sell them.