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TechTalk Blog by Dura Magnetics

Neodymium (Rare Earth) Magnet Pull Force Calculation Tool Now Available

As part of our ongoing effort to provide magnet-related resources that may be useful to those in the field, we have added to our collection of magnetic property calculation tools. This particular resource is a magnetic force calculation utility that aids in estimating the attractive (pull) force of Samarium Cobalt magnets.

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Alnico Magnets 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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Selecting A Rare Earth Magnet

The term rare earth magnet is a generic name used to describe two types of magnetic material:  samarium cobalt and neodymium iron boron.  Both of these magnetic alloys utilize rare earth elements as the magnetic constituents and the characteristics offered by both material types lend themselves to specific applications.

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Magnet 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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Why Magnets Lose Strength: The Effects of Volume Loss, Geometry, Elevated Temperature, and Demagnetization from External Fields

In the absence of external influences, a commercially viable magnet alloy should remain magnetic for hundreds of years.  The alloy’s resulting field may degrade slightly from aging effects, but for the most part it should remain an effective magnetic field source.  With that said, most magnets used in real world applications experience many external demagnetizing […]

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Did You Know?

Nickel/Epoxy/Parylene coatings can help reduce corrosion and chipping while extending magnet service life.

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