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behr GmbH

Special-purpose machinery manufacturer behr GmbH needed to create a high-precision medical products assembly system for an existing production facility. The plant has been designed to automate the handling of optical lenses produced to order by a medical equipment manufacturer, and behr was developing an assembly and handling solution that had to be planned and built to dovetail exactly with existing production facilities consisting of seven machines.

As part of their complete solution, behr GmbH chose Rexroth CMS system to create four Cartesian Motion Systems to move work trays filled with lens dies from one part of the line to the next work step. The CMS solution is built with Compact Module CKK, supplied in the lengths specified by the customer. The CKK modules consist of an extremely compact precision extruded aluminum profile and two integrated ball rail systems. Large screw diameters and leads and double floating bearings make it possible to combine high travel speed with high precision. To power the Cartesian Motion Systems, compact Rexroth EcoDrive Cs controllers and MSM motors offer high dynamics and achieve a very high positioning accuracy

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