Rare-earth magnets tackle large-scale tasks
A
Precision Magnetics product story
Edited by the Engineeringtalk editorial team
Sep 2, 2003
Although rare earth permanent magnets are still perceived by many as costly, prices are now sufficiently competitive to open up new opportunities at the top end of the volume/power equation.
Although rare earth permanent magnets are still perceived by many as costly and therefore only economical in small-scale applications, prices are now sufficiently competitive to open up new opportunities on the other side of the volume/power equation.
With high-energy products from 28 to 50MGOe (220-400kJ/m3) and an 80-180C operating temperature window, the Neomag S range of sintered neodymium-iron-boron materials from Magnequench is well suited to applications where large magnet volumes are essential for peak performance.
Products for which the company has already supplied include separators, magnetic resonance imaging (MRI/ NMRI) scanners, generators up to 100kW and couplings with torques up to 10kNm.
In many cases, precise control of the magnetic moment and its orientation is crucial - a specification that Magnequench is able to meet on lots of 1000 pieces or more with maximum variations of +/-2% and +/-2 degrees, respectively.
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