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Magnet Materials

China Magnets Source Material Limited specializes in supply magnet materials: neodymium magnet, samarium cobalt magnet, AlNiCo magnet and ceramic (ferrite) magnet.

They are objects made from a material that is magnetized and creates its own persistent magnetic field and don’t require a continuous supply of electrical energy to maintain its magnetic field. So they are also called permanent magnets in contrast to electromagnets.

Meanwhile, NdFeB magnet and smco magnets also are rare earth magnets because of using alloys of rare earth elements. Rare earth magnets are strong, but expensive permanent magnets that use on many applications. Their greater strength allows smaller and lighter magnets to be used. Thus, the volume of end products is also smaller and smaller.

The Comparison of Different Magnet Material:

1. Neodymium Magnets, the Last development in the high energy magnets (33-56 MGOe) but not the final, very poor corrosion resistance (coating: NiCuNi, Epoxy, ABS, Parylene); there are range of operating temperatures 60°C to 220°C) which can sufficient for most application. If you need higher working temperature, smco magnet is a good choice.

2. Samarium Cobalt Magnets, higher energy product values (9.5-32 MGOe) and greater temperature stability (250-350℃) and excellent resistant to oxidation. Smco magnet is a good replacement of neodymium magnet when higher working temperature is required.

3. Alnico Magnets: high maximum operating temperature 550℃, very good corrosion resistance, but low Energy Product (BHmax) about 1-11.5MGOe. They can be made into different complex shapes; horseshoe and cylinder are classical alnico shapes.

4. Ceramic Magnets, excellent in peak magnetic product and greater resistance to demagnetization, good resistance to corrosion and cheap in price. Only when making some shapes and sizes, mold fee is necessary. They are good balance of magnetic strength, resistance to demagnetizing and economy.

We help you choose magnet material for all applications, email us now!

N52H Magnets
Most of our customers think that the grade N52 is the highest grade for neodymium magnet material. But with the application requirements increasing in the industry, China Magnets Source Material Limited engaged in researching a higher grade - the N52H NdFeB magnets. Now our factory are successful to...
Radially Ring
Due to the constraint of material, sintered neodymium used in motors is assembled into ring by segment magnet. China Magnets Source Material Limited can offer radially orientated Sintered NdFeB rings with a wide variety of grades and different coating options after researching continually in Sintere...
Contact information
China Magnets Source Material Limited
Tower B, Qiongzhu Building,
Huawang Rd,Longhua District,
Tel: +86 755 28174720
Fax: +86 755 28174720