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TUBE 2014 A revolution by Lang Tube Tec


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ang Tube Tec - is set to revolutionise the market for tube bending machines, with the


introduction of an entirely new processing concept. Lang Tube Tec will be at Tube 2014 Düsseldorf to launch the new 80CNC-EMR – the world’s first fully electrically- powered automatic bending machine to use a lifting table, that creates vertical shift of collet rotation and mandrel retract both at the same time. The integrated booster for


applying additional pressure on the pipe while it is being bent, is also driven on the lifting table during the same stage of work. Other highlights of the CNC-E series include, the drive-click system for storing motor parameters, as well as the entirely new control with intuitive graphic user interface and torque-controlled tube clamping. The model being shown in Düsseldorf will also be equipped with an optical weld seam scanning device that helps always correctly and precisely align the tube’s weld seam. “The new machine concept will enable our customers to break entirely


new ground in regard to machine rigidity and machining quality. It will also help considerably reduce set-up times, which will in turn increase productivity,” said Head of Sales, Sabine Neff. The technological advances mean that it is highly suited for employment in the automotive and commercial-vehicle sectors as well as in the fields of aerospace and shipbuilding. Compared with the otherwise


conventional methods where collet rotation and mandrel retract shifting are effected separately, this innovation realises the benefits of greater rigidity, 100% synchronicity of both units’ movement and the decisive advantage that the high booster forces may be applied directly and centrally. “Our new concept means that we’re able to prevent the high levels of torque from affecting the sensitive ball bearing spindles,” explained Service and Project Manager, Björn Brunner. The lifting table concept also offers massive benefits over conventional machining processes where the bending head is moved


vertically: even with increasing machine sizes, users will still be able to position the tubes at the ergonomically optimised operating height of 1,150mm and carry out tool changes without straining their backs. The new machine control with the Siemens Simotion CNC also stands for the speedy and safe execution of work flows because all axes are moved simultaneously. The fact that the user interface


is so intuitive also means that the CNC-E series may even be operated by people without previous CNC training. And because the clamping and feeding forces are torque-controlled, the machine automatically compensates for fluctuations in tube batches. A high-performance simulation program allows the tubes’ bending properties to be checked in advance so that any necessary corrections may be made before they are worked. It also allows binary-coded 3D models to be imported to prevent any input errors. The tools and bending programs used with the 80CNC-EMR may be programmed quickly and the


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fact that all parameters are stored in the memory means that the machine is always ready for use and doesn’t have to be run in beforehand. The bending tools may be changed particularly quickly, the pressure die is simply hung into the T-grooves, the clamp dies slid into the circular guide and the tie rods may be swivelled after the locking pins have been released. The fact that maintenance-intensive gas- pressure springs are no longer needed to support the bending head and ball-bearing spindles means that the 80CNC-EMR considerably reduces maintenance requirements while the machine’s entirely new enclosure and the concept that uses a separate switch cabinet also allow optimum access for maintenance. See us at Tube 2014 in Düsseldorf – Hall 5, Stand G16


More information on Lang Tube Tec GmbH


t: +49 6251 98908-11 f: +49 6251 98908-27 sabine.neff@lang-tubetec.com www.lang-tubetec.com


IMT February/March 2014 21


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