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  • Sintered Neodymium MagnetAs lanthanide series of elements in the periodic table, sintered neodymium magnets (sintered NdFeB magnets or sintered NIB magnets) are also known as rare earth magnets. Featured by outstanding magnetic properties, they are the most powerful magnets used today...
  • Bonded Neodymium MagnetBonded NdFeB magnets are manufactured with melt spinning of a thin ribbon of NdFeB alloy. This ribbon contains randomly oriented Nd2Fe14B nano-scale grains. Then, the ribbon is pulverized into particles and mixed with a polymer. At last, it is compressed into bonded neodymium...
  • Ferrite Magnets1. Ferrite magnets are ceramic compounds of iron oxides, such as hematite (Fe2O3) or magnetite (Fe3O4), and other metal oxides.
    2. Ceramic magnets are hard and brittle. According to magnetic properties, they can be classified into “soft” ones and “hard” ones. “Soft” magnets have small coercive force...
  • SmCo Magnets1. Samarium cobalt magnets, or SmCo magnets, are made from samarium, cobalt and other rare earth materials. According to different components, its molecular formula is SmCo5 or Sr2Co17.
    2. As rare earth magnets, they were developed in the early 1970s. They are similarly in strength to neodymium magnets...

Permanent Magnets

Permanent magnets are objects made from magnetic materials. They can create their own persistent magnetic fields and be strongly attached to ferromagnetic substances like iron, nickel, cobalt, etc. Magnets with permanent fields are either naturally occurring products or artificially produced in labs and factories. There are three types of permanent magnets: neodymium magnets, ferrite magnets and SmCo magnets.

1. They have excellent temperature stability. Their Br temperature coefficient is small.
2. They are featured by compact crystal structure, high intensity, good chemical stability and strong anti-corrosion.
3. The highest usage temperature reaches up to 500 ℃.

1. Our permanent magnet products have passed various authentications in past years, such as GB/T19001-2000, ISO9001:2000, GB/T24001-2004, ISO14001:2004, GB/T28001-2001, etc.
2. Magnetic products are featured by large remanence, strong coercivity, large magnetic energy product, high performance cost ratio, etc. Besides, we can shape magnetic materials into different sizes according to customers’ needs.

1. Permanent magnets are widely applied in electronic industry, electrical industry, mechanical industry, transportation industry, medical field, commodity industry, etc.
2. Magnetic materials are utilized in production of loudspeakers, telephone receivers, alternators, motors, maglev system, magnetic bearings, magnetic separators, magnetron, proton accelerator, etc.

Production of permanent magnets needs various machining processes such as cutting, wire cutting, drilling, milling, turning, etc. Hence, production cost is relatively higher than magnets in ordinary shapes.

Changzhou Magnetic Device Factory (Changzhou Magnetic Co., Ltd.) is specialized in production of permanent magnet and magnet assemblies. We deliver a comprehensive magnetic materials range, including permanent ferrite magnets and rare earth magnets. Generally, rare earth magnets are produced with complex manufacturing procedures.