Ferrite or Alnico can sometimes replace neodymium, but usually not as a direct one-for-one substitution. Learn when alternatives work, when NdFeB should stay, and what engineers must evaluate before redesigning a magnetic assembly.Read More

In a significant move reflecting its dominance in the rare earth sector, China has imposed stringent export controls on certain rare earth elements and associated technologies. Effective from April 4, 2025, this decision has far-reaching implications for global industries reliant on these critical materials. Understanding the New Restrictions The Chinese Ministry of Commerce announced that...Read More

In 2025, China significantly escalated its control over the global rare earth magnet supply chain by introducing strict export restrictions. These measures have sent shockwaves through industries that rely heavily on advanced magnets, such as electric vehicles (EVs), renewable energy, aerospace, and defense. As the world scrambles to secure alternatives, China’s policies are reshaping the...Read More

The Hidden Dangers of a Trade War in the Magnet Industry The global magnet industry is quietly but critically woven into the fabric of modern technology. From electric vehicles and wind turbines to smartphones and defense systems, magnets—especially rare earth permanent magnets—are essential components that power the green and digital revolutions. Yet, as geopolitical tensions...Read More

Magnets are a core component of modern technology. From electric vehicles and wind turbines to smartphones, medical devices, and defense systems—none of it works without permanent magnets, especially those made from rare earth materials like neodymium. So, why can’t we make them in the U.S.? Here’s a quick look at what’s holding us back: 1....Read More

Magnetic terms explained for engineers and buyers: gauss and tesla measure magnetic flux density (B); oersted and A/m measure magnetic field strength (H); Br is remanence; HcJ is intrinsic coercivity; and BHmax is maximum energy product. Includes SI/CGS conversions and links to engineering calculators.Read More

Introduction Magnetic assemblies are integral components in a wide range of industries, offering enhanced performance over standalone magnets. By combining magnets with other materials such as steel, aluminum, or plastic, these assemblies provide higher mechanical stability, improved magnetic performance, and easier integration into various applications. This article explores the applications, design considerations, and manufacturing processes...Read More

How do magnets work in electric motors? BLDC and PMSM motors use permanent magnets on or inside the rotor to interact with a rotating stator field and produce torque. Compare SPM vs. IPM rotors, NdFeB vs. ferrite, Br and HcJ, temperature/demagnetization risk, arc segments, multipole rings, Halbach rotors and OEM motor-magnet sourcing.Read More

The Impact of Potential Tariffs on Rare Earth Magnets Rare earth magnets are critical components in various industries, including electronics, automotive, renewable energy, and defense. Composed primarily of elements such as neodymium, praseodymium, dysprosium, and terbium, these magnets are essential for high-performance applications like electric vehicle (EV) motors, wind turbines, and military technologies. However, the...Read More