Whirling for Bone Screw Manufacture
The Leistritz 65-MED machine has a unique automatic parts loader and hopper system. The pre-turned blanks are dumped into the vibratory hopper which orients and guides them tip-first to the staging area. Once “on deck” for the loading process, each screw is measured for length with a light beam and the proper CNC program is selected to run the appropriate screw length. This is a valuable tool since nearly all bone screws are produced in families of the same diameter. Typical bone screws of the same family vary in length from 10mm to a maximum of 120mm in 5mm increments. With the Leistritz 65-MED machine, all screws within the same family can be produced randomly without any set-up. This processing also allows cell integration of a number of turning centers to each whirling machine. Typically three or possibly four turning centers produce the blanks (of various lengths) for a single 65-MED whirling machine.
Leistritz Corp.
165 Chestnut St.
Allendale, NJ 07401
Phone: (201) 934-8262
www.leistritzcorp.com