Premium workholding from Hainbuch

Repeatable ≤5µm accuracy: the Toplus premium chuck with clamping head
Repeatable ≤5µm accuracy: the Toplus premium chuck with clamping head

Workholding specialist Hainbuch has unveiled a new development in its hexagonal chuck series.

In 2006, Hainbuch’s first Toplus chuck with hexagonal clamping geometry was launched. Just one year later, the Toplus IQ with integrated measuring technology was developed and in 2012, the mini version with a smaller interference contour and lower weight was born.

Now Hainbuch is presenting its latest development – the high precision Toplus premium chuck is available from stock and features many advantages.

Hainbuch designs its chucks with optimum precision in mind. Once the chucks are aligned, the runout is close to zero for repeat clamping. If the various chuck heads are then changed, the runout is usually between 3 to 7µm without alignment. With the new Toplus premium chuck, Hainbuch guarantees a runout of ≤5µm without alignment – regardless of which clamping head is used.

Until now, this was only possible with a higher priced hydraulic expansion or diaphragm chuck. In many cases, a runout of ≤10µm is perfectly sufficient. However, components or machining processes with a runout of ≤ 5µm are increasingly becoming the standard.

With the new Toplus premium chuck, Hainbuch guarantees a runout of ≤5µm without alignment
With the new Toplus premium chuck, Hainbuch guarantees a runout of ≤5µm without alignment

Using a Toplus premium chuck with the associated premium clamping heads and by clamping against the workpiece stop, this level of accuracy achieved consistently. This means that manufacturers don´t lose time making alignments for small batch sizes and they can be highly flexible, because it is just as accurate as a chuck aligned for series production.

To save time and costs, a robot is often used to load workpieces into the machine which can become a problem if the clamping stroke is too small. With the Toplus premium chuck combined with a clamping head, the stroke is large enough which makes loading easier, even if the robot works somewhat imprecisely.

In addition, the chuck is very robust and not as sensitive as some other clamping devices. A slight contact with the workpiece during loading has no effect on the chuck and the process remains stable. It is also sealed against contamination and vibration.

With the Toplus premium, both thin-walled and solid parts are clamped securely with no centrifugal losses. And last but not least, the Toplus premium – like all chucks – is available in the Hainbuch system. This means that changing from external to internal or jaw clamping takes no more than two minutes.

Hainbuch
www.hainbuch.co.uk

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