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Magnets in the News: Revival of rare-earth mining in the United States

Could U.S.-produced NdFeB be next? Rare earth elements, such as cobalt and neodymium, are highly valued in modern, technology-driven societies for their ability to create magnets with unique characteristics. These elements are utilized in a wide variety of consumer and industrial applications from smartphones and televisions to electric cars. Dura magnetics utilizes neodymium-iron-boron (NdFeB) magnets […]

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HHow to Qc (Quality Control) Magnet Strength

How do you QC a permanent magnet, magnetic assembly, or a piece of equipment utilizing magnets? There are several methods which will pass a Gage R & R, but they are generally unknown to people outside of the magnet industry…

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Magnet Safety 101: How to Safely Handle Magnets

Magnets are produced in a wide array of sizes, shapes, and strengths, but there are similarities between all magnetic materials.  They are all relatively brittle which when coupled with their magnetic strength present a number of issues.  They also invoke curiosity, and who hasn’t heard the adage of what curiosity did to the cat?  Handling […]

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What Is Magnetic Permeability and Why Are Some Materials Magnetic When Others Are Not?

A Closer Look at Magnetic Permeability and Why Some Types of Materials Are More Attracted by Magnets Than Others Two magnets attract to each other because their fields interact.  Usually, materials that are not magnets do not have a net external field, and obviously, they do not attract to things; however, some metal alloys can […]

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Essential Advice for Choosing the Best Magnet Vendor

So the right type of magnet has been designed or selected for your application and now you’ve begun the task of finding a company that can supply the part, right? Well, it’s not always that easy as magnets are unlike other commodities and, in fact, they should not be treated as commodities at all. At […]

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Alnico Magnets are High-Temperature Magnets Ideal for High Heat Applications

Since its incorporation in 1961, Dura Magnetics has been a leading manufacturer of fabricated alnico magnets.  Alnico is an acronym used to reference the three primary elements used in the manufacturing process; aluminum, nickel, and cobalt.  Prior to the 1970’s and the advent of rare earth magnets, alnico was the strongest type of permanent magnet.  […]

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Benefits & Advantages of Magnetic Assemblies

Each post in our Tech Talk blog is designed to help you better understand the complex and sometimes confusing world of magnets.  In recent posts, we discussed material grade selection, machinability of magnetic alloy, and understanding how materials such as N52 neodymium are classified.  This post explains how magnetic assemblies work and why they are […]

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Micro Magnets – Miniature Magnet Solutions

Through continuous improvement efforts, Dura Magnetics has added the capacity to deliver micro-sized magnets. Magnet Materials: Oftentimes ultra-small magnets are limited to bonded magnetic products, but now Dura can deliver miniature, fully dense Neodymium Iron Boron (Neo), Samarium Cobalt (SmCo), and Strontium Ferrite (Ceramic).  In addition, Dura can supply miniature cast Aluminum Nickel Cobalt (Alnico) […]

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What is Maximum Energy Product / (BH)max and How Does It Correspond to Magnet Grade?

The term Maximum Energy Product ((BH)max) is a commonly used, but often misunderstood figure of merit of magnets.  The (BH)max is an Energy Density and it is oftentimes used to denote grade.  The grade convention is especially used for Rare Earth magnets, (Neodymium Iron Boron Magnets and Samarium Cobalt Magnets).  For instance, a grade 48 Neodymium Iron Boron magnet will generally have an advertised (BH)max of 48 MGOe…

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