Rare Earth Magnet

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Rare Earth Magnet

As a leading magnet supplier in China, we focus on custom rare earth magnets, i.e. Neodymium magnet and Samarium Cobalt magnet. Available in a wide range of shapes, sizes and grades including GBD, our Neodymium magnet contributes to various applications requiring high performance at reasonable cost. Samarium Cobalt magnet helps customers solve difficulty in corrosion resistance and high-temperature stability.

 

  • General Introduction to Rare Earth Magnet:
     

    Rare earth magnet refers to two types of powerful permanent magnets: Samarium Cobalt magnet (SmCo) and Neodymium magnet (NdFeB), which are composed of rare earth element alloys. The advantage in excellent strength to size ratio and affordability of rare earth magnets over conventional Ferrite and Alnico magnets makes them the preferred choice for many commercial, technological and industrial applications. SmCo magnet and NdFeB magnet have their own unique characteristics respectively, so SmCo magnet and NdFeB magnet could meet different application requirements.

 

  • Comparison of Features between Rare Earth Samarium Cobalt Magnets and Rare Earth Neodymium Magnets:
     

     

     Magnet Type Maximum Energy Product Resistance to Demagnetization Temperature Stability Corrosion Resistance  Appearance after Machining  Cost Application
    NdFeB Magnet  in grade N, M, H or SH Very High High Moderate Coating needed Good Moderate Fastening magnet assembly, Magnetic closure, Loudspeaker, Magnetic coupling, Stepping motor, Linear motor
    NdFeB in grade UH, EH or AH High Very high High Coating needed Good Very high EV motor, Servo motor, Ignition coil 
    SmCo5 Magnet Moderate Very high Very high Very high  Prone to cracking and chipping Very high Satellite system, Isolator, Circulator
    Sm2Co17 Magnet High Very high Very high Very high  Prone to cracking and chipping High Sensor, Chemical pump, Aerospace 

     

 

FAQs of Neodymium Magnet

Answers to frequently asked questions about our products

Magnet Guide

In the industrial field, when using magnets, you need to pay attention to choosing the type and specifications of magnets that are suitable for the application scenario. Make sure to fix them firmly during installation to avoid falling off due to factors such as vibration. Prevent the magnets from colliding and falling during operation to avoid damaging the magnet performance. For strong magnets, keep them away from electronic devices and magnetically sensitive items to prevent interference and damage.

At the same time, check the magnetic strength and appearance of the magnets regularly, and replace them in time if damaged. When storing, avoid high temperature and humid environments to prevent the magnets from rusting and weakening of magnetism. The magnets can be placed in a dry and ventilated place, away from other magnetic items to prevent mutual influence.

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Ningbo Horizon Magnetic Technologies Co., Ltd
sales@horizonmagnetics.com +86 574 2788 3742 +86 189 5741 3363
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