TPT May 2012

T echnology N ews

transfluid process improves production performance

IF special requirements are required from a machine, sometimes less is more in order to optimise high-quality results. The area of tube bending technology proves that as with transfluid Maschinenbau GmbH, which offers a solution that links its simple processes intelligently and effectively with each other. After listening to customer requests transfluid specialists have developed an economic system for the automatic production of closed tube frames with up to six bends. The frame ends are reduced and merged during the bending process. The complete equipment solution includes an additional pressing device in which the fabricated tube frames are inserted automatically. “The challenge was to create an optimal process for our customer, which ensures efficient results fast and easy. And that with a cycle time of only 15 seconds,” explains Gerd Nöker, managing director of transfluid. At the establishment and development transfluid makes a point from the beginning that the entire system can

be operated up to one hour without the deployment of personnel. For this purpose, the solution has a tube bunker that can accommodate 240 tubes with a diameter of 30mm. After the separation process again the lengths are measured and one tube end is reduced automatically, so that both ends can be implemented into each other later. The bending process is performed by a transfluid double-head bending machine, which is equipped with two axially servo- electric positioned heads. “The two bending heads

frame.” Finally the automatic removal and feeding into the pressing device takes place. There various embossing punches fix the frame. By attaching different flattenings and punchings it is guaranteed that during the later painting the paint can run smoothly. transfluid Maschinenbau GmbH – Germany

Email: info@transfluid.de Website: www.transfluid.de

Tube bending from transfluid

are always in use simultaneously, and the drive is also performed servo-electric,” said Mr Nöker. “The positioning of the workpiece in the bending process provides the automatic connection of the ends, creating a closed

HPC – internal line-up pipe clamps THE welding quality in pipeline construction is crucial and has to fullfil worldwide standards, certified by international authorities. Companies like Norske Veritas have set up guidelines, to avoid defects and therefore environment and health risks, by use of the best pipeline equipment. Very important is the choice of the correct internal line-up pipe clamp for weld preparation, to compensate tolerances of pipe manufacturers and to avoid edge misalignment during welding process. Internal line-up clamps are the most frequently used alignment equipment nowadays, because system. Compared to external clamping systems, the HPC offers a fast and accurate adjustment, no tag weld is needed and the root pass can be done directly. It helps to avoid oval pipe problems and can be used for pipes with different wall-thickness. An equal force is applied by all around-shoes which provide a precise axial adjustment. Internal line-up of pipes in pipeline construction can be done with hydraulic or pneumatic internal clamps. Line-up pipe clamps

they provide a full access to the weld seam during the entire welding process. The innovative new HPC system was demonstrated for the first time at Tube 2012 in Düsseldorf. The hydraulic system is available for all sizes from 6" to 60" and is available as manual or fully remote controlled

Compared to pneumatic internal systems the hydraulic drive provides many advantages. The feet do not have to be adjusted to each ID and the HPC has a bigger range of clamping than pneumatic systems. No high pressure compressor is necessary on-site and maintenance of the system is reduced. DWT GmbH – Germany Website: www.dwt-gmbh.de

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M ay 2012