As a manufacturer of high-performance electric and hydraulic sewer pipe rehabilitation robot systems, Pipetronics GmbH utilises two in-house CNC machining centres fitted with a wide range of Big Kaiser tools and tool holders that are available in the UK from Industrial Tooling Corporation (ITC). With headquarters in the South German town of Stutensee, Pipetronics uses the Big Kaiser range of products for the production of its robots’ turned and milled components.

To ensure complete coverage of all production processes, Pipetronics purchased a Grob G350 five-axis machining centre and a Mazak i400 ST turn-mill centre. Both feature robot automation.

“To mill very close to the clamping device along the spindle, a slim, stable and precise tool holder is required, which is where tool-holder specialist Big Kaiser comes into the picture,” says Rolf Dettinger, head of CNC manufacturing at Pipetronics. “From my previous job, I have significant experience with Big Kaiser spindle tools and Big Daishowa tool holders. After being repeatedly disappointed by the quality of the default chucks used on the Grob, I finally contacted Big Daishowa and they kindly provided us with the Mega Double Power Chuck for testing.”

Seeing the impressive results during the test phase, Dettinger was so impressed that he ordered several Micro collet chucks from the Mega Chuck series for the Mazak machine in addition to the tested power chuck.

“For our application, the Big Micro Chuck collet chucks offer optimal performance characteristics for machining hard-to-reach workpiece areas, where conventional collet systems fail to deliver,” he says. “Thanks to its groove-free collet nut, vibration at high speeds are prevented. The key is that this Big Kaiser micro-collet system is slim enough to implement in all our machining operations.”
For further information www.itc-ltd.co.uk

To strengthen its position even further in the area of stationary systems, Hainbuch, a manufacturer of high-precision clamping devices, has acquired the Docklock zero-point clamping system from Vischer & Bolli AG in Switzerland.

The Docklock system has been on the market for more than 20 years, while its features and user benefits match perfectly with Hainbuch’s product philosophy. Hainbuch has been offering quick change-over systems or zero-point clamping systems for lathes for many years, and now it is expanding its capabilities in the area of stationary systems. The four variants of the Docklock system now have Hainbuch branding. Both pneumatic and hydraulic variants are available for either manual or automated change-over.

According to Hainbuch, the Docklock zero-point clamping system has two decisive advantages over other systems. The first is form-fit clamping with a collet or clamping segments, ensuring stiff clamping and higher repeatability. This also means that there are no pressure marks on the clamping bolt compared with systems featuring balls or slides, which lead to inaccuracies and consequently the need to replace the clamping bolts. Secondly, it is impervious to dirt and swarf, which means less wear and less maintenance. The base plate, which screws on to the machine table, provides the base for a quick change-over.

Notably, it is possible to change the clamping device combined with Docklock in just two minutes. The zero-point clamping system thus produces savings in terms of production time and cost. Using the interface, users can perform set-up outside the machine, thus avoiding lost production. The collet chuck lock ensures the trouble-free insertion and removal of workpiece pallets, while direct installation on machine tables, pallets or fixtures can be implemented cost-effectively by means of flanged cylinders.
For further information www.hainbuch.com