Hainbuch’s TOPlus chuck for machining cast or hardened parts is equipped with a hexagonal core made of cast resin. This makes the chuck lighter than steel chucks, resulting in lower inertia during high spindle acceleration. The resin also has a positive damping effect to prevent component ringing during hard turning operations.
Six angled steel plates, which are cast in resin, form the chuck taper. To match this arrangement, the clamping head also has six flat outer surfaces that mate exactly with the surfaces of the chuck. Whether the chuck is open or closed, the clamping taper is completely sealed.
The reduced surface pressure and the full surface contact of the clamping segments increases the radical clamping force. In addition, the large clamping area is suited for raw materials, cast and forged parts. A single grease nipple provides lubrication, but this can also occur automatically through machine coding.