In 1993, due to a lack of availability, Ketterer Maschinenbau GmbH developed rigid, high-speed turret heads.

The patent-protected RK series 6 and 8 station crown turrets are designed for and are applied in the most demanding. heavy cutting, applications
Highly dynamic acceleration, long service life and maximum precision are realized by 3-part non-lifting Hirth gears in combination with integrated angle measurement systems.

Ketterer data page