The high SCHUNK quality standards and our customers' satisfaction have made us the market leader in chuck jaws for many years. With over 1,200 different standard types for all current lathe chucks, SCHUNK also offers the world’s largest standard line of jaws. Of course, our chuck jaws are manufactured only of high-grade steel and aluminum – because we are only satisfied when you are!
Whether you need modified standard jaws or custom-made special jaws – at SCHUNK you will always find the right solution! Decades of experience and competence in the development and manufacture of standard and specially designed jaws make us the ideal partner for all types of clamping technology tasks.
Exclusively from SCHUNK:
Quentes fiberglass jaws – the velvet paws among chuck jaws!
SCHUNK is the only manufacturer to offer its customers the Quentes fiberglass jaws. These jaws made of fiberglass-reinforced plastic enable clamping on already ground or surface-treated surfaces, since they leave no clamping marks whatsoever on the clamping surface.
In combination with the large looping angle of the turned Quentes on the workpiece, this ensures low-deformation clamping of the component.
The high coefficient of friction of 0.3 – 0.4 makes it possible to transfer high torques with low clamping forces. The supporting jaws of the Quentes fiberglass jaws are made of aluminum. This provides a clamping solution that – due to its low weight – also enables high machining speeds. When they wear out, Quentes clamping inserts can be replaced easily, quickly and at low cost.
The Quentes fiberglass jaws are available and in stock in two different standard models for power chucks and quick-change chucks.
Detailed information on the Quentes fiberglass jaws can be found here:
Serrated bars – make your own soft top jaws!
Another special product available only from SCHUNK are serrated bars, from which the customers can manufacture their own soft top jaws - easily, quickly and at low cost. The bars are available in steel or aluminum, with 90° and 60° fine serration and in a standard length of 420 mm. Of course, these bars also have a ground groove and serration for a longer service life of the base jaw and for high repeat accuracy when changing jaws.
More information on serrated bars can be found here: