Collets for multi-chuck lathes are the “traction” type made through tie-rods inside the machine. The attachment thread may be internal or external. This allows very precise milling.
In the bar-pusher, also called the advancement collet, the bar is inset from behind the bar-pusher through a very pronounced bushing that prevents the bar from “becoming implanted” and it is carried to the collet to be milled.
The pickup collets take the parts for finishing after milling to the bar-pusher collets. There may be various types of attachments: string, bayonet, or with “teeth”.
The bushings are inserted in the bar carrying tube and the bar-pusher tube and prevent the bar from “derailing” during its passage toward the bar-pusher, especially the template collets with a rate to be respected.
In addition to the pincers described, we also produce other types on request: for example Acme-Gridley, Index, Pittler, Tornos etc.