EoW January 2010

technology news

Tension sensor

Wire drawing machinery

Haehne has developed a sensor specifically for the direct measurement of small and medium web tension forces, ranging from 25 to 1,000 Newtons, acting in cables, wires, ropes and tapes. They can be used in cable making and stranding machines that already require deflection rolls or pulleys. The sensors have been optimised with finite element analysis methods (FMA) and have a series of special features: The total nominal force range from 25 to 1,000 Newtons is • covered by one mechanical size Both clamping block and flange mounting versions, • several cable connections and quick disconnects are available Mechanical stops provide six-fold overload protection • Adaptation to various mounting elements using different • axle adapters Zero adjust by an externally accessible potentiometer • Strain gauges applied to the active surface of the cantilever bending beam measure the acting forces. The integrated strain gauge amplifier converts the bridge signals into a standardised current output signal of 4 to 20 milliamps. The signal can be used, for instance, for displaying the force or as actual value in closed loop controls.

Dongguan Guanbiao Electrical Machinery Co Ltd specialises in manufacturing and cable machinery. From its 6,000m 2 facility the company produces a wide range of wire drawing machines including continuous intermediate wire drawing and annealing machines, small, fine and super-fine wire drawing machines. All wire drawing machinery produced by Dongguan Guanbiao Electrical Machinery is provided with modern technology such as frequency conversion speed regulation, PLC, DC speed regulation and an opto-electrical transducer to improve working accuracy and productivity and assist energy-saving and environmental protection.

Wire drawing equipment from Dongguan Guanbiao Electrical ▲ ▲

Dongguan Guanbiao Electrical equipment is in use for producing copper wire, copper-clad aluminium wire, copper- clad steel wire, aluminium wire and ALMG alloy wires. Dongguan Guanbiao Electrical Machinery – China Fax : +86 769 8892 0895 Email : info@guanbiao.com Website : www.guanbiao.com

The power supply is 24 volts DC.

Haehne Elektronische Messgeräte GmbH – Germany Fax : +49 211 92591 20 Email : info@haehne.de Website : www.haehne.de

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EuroWire – January 2010