News
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Remanence (Br) Explained: What the Number on Your Magnet Datasheet Actually Promises
Introduction A magnet arrives, you put a gauss probe on the pole face, and the reading sits well below the remanence printed on the datasheet. Usually nothing is wrong with the magnet. Remanence is a material property, measured on a saturated sample in a closed ...Read more -
Intrinsic Coercivity Explained: Why Every Magnet Datasheet Lists Two Coercivity Values
Introduction A hysteresigraph report for a single sintered NdFeB sample lists two coercivity values: HcB = 13.82 kOe and HcJ = 18.48 kOe. Same magnet, same test, one temperature — and the two numbers sit 34 % apart. Both are correct. Only one of them tells you w...Read more -
What Is a Magnetic Circuit? A Design Engineer’s Guide to Flux, Reluctance, and Leakage
Introduction If your motor runs hot, your speaker sounds thin, or your sensor assembly needs twice the magnet mass to hit spec, the root cause is often the same: a poorly designed magnetic circuit. Engineers routinely over-specify NdFeB or SmCo grades to compens...Read more -
NdFeB Magnets in Smartphones: A Component Engineer’s Sourcing Guide
Introduction A modern flagship smartphone contains 8 to 12 discrete permanent magnet assemblies, most of them sintered NdFeB grades smaller than a fingernail. For design engineers and procurement teams sourcing into consumer electronics, this density creates a h...Read more -
Which side of a magnet has the strongest magnetic force?
Introduction If you have ever specified a NdFeB magnet or SmCo magnet for a holding fixture, sensor assembly, or magnetic coupling, you have likely noticed something counterintuitive. The corners and edges of the magnet grab ferrous parts faster and harder than ...Read more -
What’s Inside an NdFeB Magnet? Raw Materials, Additives, and Supply Chain Risks
If you specify, source, or manufacture with NdFeB permanent magnets, you already know they punch far above their weight. What's less understood — even among experienced engineers — is exactly what goes into them, why trace additives matter enormously, and why t...Read more -
Why Do Permanent Magnets Attract Iron? A Physics Primer for Engineers
Introduction If you specify, source, or design with permanent magnets — NdFeB, SmCo, or ferrite — understanding why they attract iron isn't just academic. It directly informs material selection, gap geometry, and system reliability. Yet the mechanism is routinel...Read more -
Surface Field vs. Remanence: The Magnet Specification Every Engineer Must Understand
Introduction You're reviewing a supplier datasheet. It lists a surface field of 4,000 Gauss. But your materials reference cites a different value for remanence. Did the supplier make an error — or are you comparing two fundamentally different measurements? Neith...Read more -
How Magnets Make Wireless Charging Work: Science, Not Magic
Wireless charging seems like a futuristic marvel, but it’s grounded in science—and magnets play a starring role. I used to avoid wireless chargers, but I was frustrated by their slow speeds, inconsistent performance, and tendency to overheat. Nothing was worse ...Read more -
How Can a Magnet Help Humans Uncover the Origins of the Universe?
Introduction On May 16, 2011, at the Kennedy Space Center in Florida, dawn illuminated the launch pad where the gleaming white Space Shuttle Endeavour stood poised. The countdown commenced seconds ticking away, with thousands of spectators eagerly holding their ...Read more -
Demystifying Magnetization: The Essential Guide to Harnessing Magnetic Power
Ever wonder why a magnet sticks to your fridge or how your electric car zooms so smoothly? It’s all thanks to magnetization, which turns everyday materials into magnetic superstars like Neodymium and SmCo magnets. This blog post will pull back the curtain on ma...Read more -
The Power of Alnico Magnets: Characteristics, Applications, and Advantages
Introduction Alnico magnets, a cornerstone in permanent magnets, have been quietly powering industries for decades. Known for their remarkable strength, temperature stability, and versatility, these magnets are a go-to choice for engineers and manufacturers. But...Read more