Pickoff Collets For Swiss Turning Centers

 In collaboration with Citizen Machinery Tech Center, Hardinge has developed and now manufactures standard TF-25 OG overgrip collets for Cincom M20 and L20 lathes. Extra spread is required to open the collet wide enough to go over the screw head or larger diameter. The collet design incorporates teardrop slots and reduced wall thickness for maximum flexibility for the overgrip pickoff process.

 In collaboration with Citizen Machinery Tech Center, Hardinge has developed and now manufactures standard TF-25 OG overgrip collets for Cincom M20 and L20 lathes. Extra spread is required to open the collet wide enough to go over the screw head or larger diameter. The collet design incorporates teardrop slots and reduced wall thickness for maximum flexibility for the overgrip pickoff process. A double-angle taper reduces the contact surface, which provides for a quick collet opening. The company’s hardened and ground collets are designed to provide high accuracy and repeatability with precision in the collet back-bearing and concentricity at the gripping area. Order holes are finish-ground on a Tripet internal grinding machine. The grip diameter, grip length and the recessed part diameter are required to manufacture the overgrip collet for a specific part. A semi-finished stock program is in place to provide a quick turnaround from time of order.