New IE5+ synchronous motors require less rare earth material

The IE5+ permanent magnet synchronous motor from Nord Drivesystems significantly exceeds the highest efficiency class IE5. The especially compact and energy-efficient motor offers a constant high efficiency of up to 93 percent and a wide torque range and thus also develops optimal energy performance in partial load and partial speed ranges.

This means that the IE5+ motor not only saves energy, but also emissions. In comparison to a conventional IE3 asynchronous motor, an IE5+ synchronous motor reduces emissions by around 0.15 t CO2 per year. This applies to one single motor. In large systems, for example in intralogistics with hundreds or even thousands of drives, this adds up to an impressive total saving.

The IE5+ motor from Nord can also impress with another sustainability factor: material efficiency. “Various innovations in the motor design help us to realise significant material savings with our new IE5+ series,” Jörg Niermann, head of marketing at Nord, emphasises. Nord Drivesystems designed the IE5+ as an 8-pole synchronous motor in an IPM design. This reduces the size of the motor’s active components, which not only results in material savings in the sheet metal package but also in the magnet material.

In the course of material savings, it was also possible to reduce the proportion of rare earth elements in the magnet material. Rare earth elements are mainly found in Russia, China and Brazil and can only be mined with great environmental impact. “We are glad that we were able to significantly reduce the use of this material,” Niermann explains.

With 8-pole synchronous motors, the stator can also be manufactured with the so-called single-tooth windings. As a result, valuable material such as copper is only used where it is actually productive, and inefficient use in the winding head is reduced.

“Our IE5+ synchronous motor combines energy efficiency with material efficiency and thus scores twice in terms of sustainability,” Niermann highlights. Of course, this not only applies to the IE5+ motor itself but also to the DuoDrive geared motor, in which the IE5+ is integrated.

Nord Gear Ltd

11 Barton Lane
Abingdon Science Park
Abingdon
OX14 3NB
UNITED KINGDOM

+44 (0)1235 534404

GB-sales@nord.com

www.nord.com

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