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ing our centroteX system,” said Larry McMillan, Great Lakes area regional manager for Hainbuch America. “Currently, the largest member of our workholding family, the base of the centroteX system, is a machined adaptor plate equipped with coupling receptors. When fi tted to the lathe, a se- ries of clamping device adaptors in a variety of sizes interface with the coupling, which can be quickly and securely attached with rapid action screws.” When heavier clamping devices such as larger chucks are used, the quick-change capa- bility is enhanced by the Monteq mounting aid—a specially designed arc-shaped holder suspended from a spring-mounted attachment that is also equipped with quick action bolts. The system is designed to enable machine operators to effect a change- over from a collet to a chuck in a matter of minutes. Key to maintaining precision in the Hainbuch system is the avoidance of chip contamination. Clamping devices in the smaller size range are confi gured in such a way as to exclude chips or other foreign material from all clamping surfaces. In centroteX applications involving the exchange of various- sized chucks, a specially designed wheeled cart is provided to hold the chucks in a secure environment between uses. Once the system was decided on, the Stober team opted to install it in conjunction with a new Nakamura WT300 lathe. Landon Garrison said: “We are extremely pleased with the performance of the system. Where we formerly had to use two lathes, we are currently performing both operations on the same machine.”


Machining setup using centroteX system at Stober Drives (Maysville, KY) maintains tolerances as tight as 11µm.


Meyer said: “Our changeover goals have exceeded their targets, and currently chuck exchanges that used to take two hours have been reduced to as low as fi ve minutes.”


Continued on P82


Hainbuch centroteX equipment delivers precision workholding performance.


August 2017 | AdvancedManufacturing.org 45


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