Clamping specialist Hainbuch is now offering users of its Mini series, or the earlier Toplus or Spanntop chucks, a device that is designed to save time and cost.

The Vario part and Vario quick end-stop systems, already in the product portfolio, are joined by a third variant: the Vario flex pneumatic workpiece ejector that ejects the component from the chuck automatically.
Hainbuch’s pneumatic workpiece ejector allows users to adjust the depth flexibly by means of a novel retaining mechanism, ensuring it can be positioned in the machine exactly as required for the workpiece. The Vario flex can also be used as a basic end stop for coolant wash or air flush. To achieve this function, the pneumatic spring is removed and a feed tube attached. The optional workpiece-specific end stop with holes for the wash and air flush can then be mounted directly to the interface.
Set-up time can be saved using the standardised end stops. Whether to use Vario quick or Vario part is just a matter of preference. For precise, rigid clamping, Hainbuch recommends using the Vario part system, which works on the same principle as a gauge block, and its height can be adjusted in 1 mm steps with gauge discs. With an axial run-out of <0.02 mm at the part of the end stop that touches the workpiece, Vario part is suitable for machining finished parts. The Vario quick variant is intended for fast, flexible clamping as it has a precise trapezoidal thread screw to allow the clamping length to be adjusted quickly. A half-turn is equivalent to an axial adjustment of 1 mm. For further information www.hainbuch.com