High-speed coil winding requires the use of a tensioner between the feed coil and the receiving coil (end product). Fine control and the trend towards using larger-diameter wires to meet the high demand for electrical equipment such as transformers means that tension control solutions are required which offer high torque density as well as easy torque control. Today’s high-throughput production machines routinely attain speeds of more than 30m/s for wires that are only a few hundredths of a millimetre in diameter. The forces applied to these wires are of the order of a few tenths of a newton, and must be controlled very precisely. Altic, inventor of the modern tensioner and a benchmark for the sector, has selected EMP electromagnetic brakes from Merobel for its entire electrical and electronic range. Altic is the inventor of the modern wire tensioner. After 40 years, the company maintains its position as a worldwide benchmark for wire tensioners and a leader in innovation. Altic manufactures the only closed loop force control solutions available on the market. Based in southern France, Altic now exports almost 80 percent of its production.

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