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MflCHENDORFF Automation GmbH & Co. KG • Easily retrofittable complete system • High accuracy • Rugged housing • Measuring range up to 6,250 mm Rugged & Tough

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Draw-wire system for position feedback with hydraulic presses Demand for greater accuracy and rugged design Updating the test press The Robert Koch Werkzeugbau GmbH & Co. KG of Wuppertal, Germany, is a medium-sized company with a long tradition of manufacturing machine tools as well as top-quality complex stampings. Small plastic mouldings that have to withstand high stress loads, place high performance demands not only on materials scientists but also on those companies which manufacture the tools for their production. Modern moulds for plastic injection machines are ever more delicate and...

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Installation of highly-accurate draw-wire systems After a few months HSI tried a different approach: the proximity switches disappeared from the machine to be replaced by draw-wire systems from the Wachendorff company of Geisenheim. These systems are equipped with an incremental encoder, which provides information on the amount of cable paid out. Only when these position feedback systems were being used, was the accuracy sufficiently high for HSI’s control software to be then able to regulate the hydraulic cylinders on the Hessmert press to the appropriate degree. Wachendorff’s SZG 81...

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Image 3 The encoder outputs provide signals corresponding to the length of wire paid out, enabling the control software to govern the position of the presses more precisely Image 5 Elderly hydraulic press with the latest control technology Image 4 The SZG81 mounted sideways on the press Any Questions? Just call Dieter Schömel +49 (0) 67 22 / 99 65-10, send him an E-Mail at sco@wachendorff.de or call your local distributor. Please contact your local distributor:

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