China Neodymium And Ferrite Magnets Manufacturer & Supplier 
General magnet manufacturers are mainly sintered neodymium iron boron, also known as sintered neodymium magnets, according to different production processes, neodymium iron boron product classification there is also an injection molding neodymium iron boron magnets, then injection molding neodymium magnets and sintered neodymium magnets what are the differences? Below to take you to understand.
Difference in production process
Injection molding NdFeB permanent magnets: the process is simple, can be injection molded with a variety of metal, non-metallic inserts, and can be composite molding for many times.
Sintered NdFeB permanent magnets: the process is more complicated, and assembly with other metal inserts requires additional processes.
The following pictures are special rare earth neodymium magnets, which contain U-shape, semi-circle, countersunk ring, cabochon and so on.
Differences in Magnetic Properties
Injection molded neodymium permanent magnets: the surface magnetic field performance is high, generally not more than 3000 gauss.
Sintered neodymium permanent magnets: the surface magnetic field performance is very high, a single magnet can reach more than 5000 gauss.
Reliability;
Injection molded NdFeB: Higher product toughness, strong mechanical properties, not easy to break and chip.
Sintered NdFeB: Higher product strength, but brittle, easy to break, chip and crumble.
Dimensional accuracy
Injection molding neodymium permanent magnet: injection molding method, high precision, good product consistency, high running balance.
Sintered neodymium permanent magnets: sintered molding method, poor product precision, assembly with other inserts, product running balance is not high.
Difficulty of multi-pole magnetization;
Injection molding NdFeB permanent magnet: it can be made into multi-pole products arbitrarily by one time molding, and does not reduce the surface magnetism.
Sintered NdFeB permanent magnet: using coil magnetization method, complicated process, the more poles the higher cost, poor precision, bad control of magnetism.
Difference in application areas;
Injection molded NdFeB is suitable for fields requiring complex shapes and precision, such as sensors, magnetic encoders, micro motors and so on. Its excellent processing performance and impact resistance make it widely used in precision instruments and small electronic devices.
Sintered NdFeB is widely used in high-performance motors, wind turbines, hybrid cars, medical equipment and other applications that require high magnetic force because of its high magnetic properties.
Comparison of production costs;
Injection molded NdFeB magnets will have a lower overall production cost than sintered NdFeB magnets due to their simpler production process and lower subsequent processing requirements. However, in some cases, high performance requirements may make sintered NdFeB a better choice, even at its higher cost.
Above is the introduction of the title, no matter which one you need, our company can provide, and support customization, welcome to consult our stock and price.
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