Stauff-Test Series for Special Clamps in wind power stations

(Werdohl, August 2012)

Test series for special clamps in wind power stations

New technologies frequently make challenging demands on the relevant vendor parts; for example, on the cable fastenings in wind power towers. The enormous weight of the cables must be securely fixed to the walls of the tower, giving rise to numerous questions: What is the optimal clamp spacing, is the substructure stable enough, and are the fastening elements used by the customer strong enough? Can the design engineer be certain that the topmost fastener will bear the overall weight during the erection of the tower, and will the clamp hold the cable in place without damaging the insulation, even if different cable materials are utilised?

Over the years, Walter Stauffenberg have gained a high degree of expertise in the development of special clamps and can provide the answers to these questions. The characteristic values for each specific application are ascertained and analysed in our in-house test lab in close cooperation with the customer. Among other things, the ideal torque for tightening the screws is measured and tested. A tensile strength test rig is then used to determine the maximum retention force the clamp can achieve with the specified screw tightening torque. In addition, the axial and radial retention forces are also measured. The measured values are entered in a log which is made available to the customer. Visitors to the the HusumWindEnergy will find out further details in Hall 1, Stand F04.

Picture selection

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Picture 1:

The most significant parameters for the customers's individual
application are determined in the Stauff test laboratories

(Picture: Walter Stauffenberg GmbH & Co. KG, 2012)

Background information

Walter Stauffenberg GmbH & Co. KG was founded in the 1950s in Werdohl, in the German province of North Rhine-Westphalia, and was initially a contract turning shop. Today the company operates under the trade name STAUFF, developing, producing and marketing fluid technology components for use in plant construction and mechanical engineering. In the fields of tube, pipe and hose clamps, measuring technology and hydraulic filtration, STAUFF is one of the world’s leading organisations in a growing industrial segment.

Meanwhile, more than 1200 employees (12/2011) in 16 companies generate an annual turnover of more than EUR 180 million (12/2011) worldwide. Additional distribution subsidiaries have recently been opened in Russia, Ireland and Malaysia. Besides the group headquarters in Werdohl Ehrenfeld, the company has production and logistics facilities in the German cities of Plettenberg-Ohle and Neuenrade-Küntrop.

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