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Cost-Effective New Pneumatic Workpiece Ejector
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Clamping specialist Hainbuch is now offering users of its Mini Series, or the earlier Toplus or Spanntop chucks, a clever innovation that saves time and money. The Vario Part and Vario Quick end-stop systems already in the product portfolio have now been joined by a third variant, the Vario Flex.


The pneumatic workpiece ejector pushes the workpiece from the chuck automatically. The pneumatic workpiece ejector depth can be adjusted flexibly by means of a clever retaining mechanism and it can be positioned in the machine exactly as required for the workpiece. This automated function increases process security and reduces cycle times. The Vario Flex workpiece ejector can also be used as a basic end-stop for coolant wash or air flush. To do this, the pneumatic spring is removed and a feed tube is attached. The optional workpiece-specific end-stop with holes for the wash and air-flush can then be mounted directly on this flexible interface.


Two systems & more flexibility

Valuable time can be saved using the standardised end-stops. Set-up times are drastically reduced and the user always has the right end-stop ready to hand. 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. It works on the same principle as a gauge block, and its height can be finely adjusted in 1mm steps with gauge discs. With an axial run-out of < 0.02mm at the part of the end-stop that touches the workpiece, Vario Part is ideal for machining finished parts. The Vario Quick variant is intended for fast, flexible clamping. 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 1mm. Hainbuch also offers end stop blanks for workpiece or front end stops.

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