ferrite magnets
How to Choose the Right Magnet Materials for Your Application?
Apr 6,2021.

Permanent magnets are now widely used in life, almost involving all walks of life, such as nuclear magnetic resonance, wind generators and other high-end motors, stereos, door sensors, mahjong magnets, etc. Because there are many types of magnet materials, many customers do not know which magnet they should choose. From which aspect to choose magnets, it is a difficult problem. Below, Bearheart talks about this issue.


First of all, from the user's point of view, the points that customers care about are nothing more than the price of the magnet, the magnet's magnetic force and the high temperature resistance of the magnet. Below we briefly introduce several commonly used magnet materials in the market.

There are many types of magnets available on the market today, each with different properties. The most common ones are neodymium magnets, alnico magnets, SmCo magnets, and ferrite magnets.

How to Choose the Right Magnet?


Sort by price from low to high

1. Ferrite magnet. Because the material is cheap, the price of ferrite is very low, and the amount of use is very large. It is mostly used in handbag packaging factories, horn factories, and leather goods factories.

2. Neodymium iron boron magnets. High cost performance, although its quantity is not as large as ferrite, but the highest output value. All walks of life are involved. Our customers are mostly used in magnetic connectors, DC motors, robots, smart homes and other fields.

3. Alnico magnets are more used in military products.

4. Samarium cobalt magnets. The cost is high, and it is only used in some high-end permanent magnet motors.


The magnetic force of the magnet (from strong to weak)

1. Neodymium iron boron. The third-generation rare-earth permanent magnet products are currently the strongest magnet material. They are called strong magnets, powerful magnets, magnet kings, etc. by outsiders, with a maximum magnetic energy product of 52 megagauss oersteds.

2. Samarium cobalt. The magnetic force is better than that of neodymium iron boron and samarium cobalt magnets can be processed into special shapes. The maximum magnetic energy product is 26 trillion Gauss Oersteds.

3. AlNiCo. The magnetic force is weaker than that of samarium cobalt, and the maximum magnetic energy product is only 5.4 megagauss oersteds.

4. Ferrite. Ferrite and AlNiCo are very weak in magnetism, and the maximum magnetic energy product is only 3.6 MegaGauss Oersteds.


High temperature resistance (from high to low)

1. AlNiCo. It can withstand a working temperature of 500°C and is the most high-temperature-resistant magnet material.

2. Samarium cobalt. It is an ideal choice for the working temperature of 250℃-350℃.

3. Ferrite. The upper limit of the heat-resistant working temperature of ferrite is 300℃.

4. Neodymium iron boron. NdFeB is suitable for the working temperature of 80℃-230℃, and the magnetic force is strong.

What Type of Magnets Do You Need?


The above is the article on how to choose the right permanent magnet. I hope that after reading it, you already know how to choose the right magnet. If you have any questions, you can contact us.

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