China Rare Earth Magnet Limited specializes in the production of sintered NdFeB permanent magnets & magnetic assembly, which are widely used for wind turbine, car, motor, motor, elevator, medical, IT products, speaker, etc. If you have such demand, welcome to contact us!
Magnetic comprehensive performance of the magnets used for megawatt wind turbine is very high, so they can withstand extremely harsh environment and has long service life.
Most NdFeB magnets used for wind turbine are nickel + epoxy coated large squares, arc shaped magnets and wedge shaped magnets, more in grade M, H, SH series.
Permanent Magnets for Car
Automobile EPS and HEV are the two main application projects of magnets. In addition, double clutch, gearbox, seat motor, fan motor, sensors and other components are all involved with magnets. Surface phosphating treated square magnet is very typical in automotive applications.
NdFeB Motor magnets
Magnets are widely used in servo motors, stepping motors and linear motors owing to the high remanence, coercive force and magnetic energy product features of neodymium material.
There are 10 major control points for the quality of the motor magnets:
1) size; 2) appearance; 3) magnetic flux - magnetic moment; 4) demagnetization curve; 5) irreversible loss/aging;
6) Corrosion resistance, 7) mechanical properties; 8) viscose; 9) assembly; 10) packaging
According to customers' requirement, most of the motors request neodymium permanent magnets with high working temperature, for example, grades of N35SH, N38SH, N35EH, and N35UH. Customers usually use diametrically magnetized arc magnets to assemble ring magnets. Customer will also use other shapes of magnets, such as wedge, square, ring or other special shape.
Elevator Magnets
Elevator motor magnets have advantages of high coercive force, high magnetic energy product, low temperature coefficient, low gravity, good performance consistency and competitive prices.
Most of the elevator motor magnets are in Zinc plated segments in grade N35SH and 38SH.
Generally, the magnetic flux range of elevator motor magnets is about + / - 3%.
Custom-made permanent magnets or magnetic assembly
In order to help customers save logistics costs, China Rare Earth Magnet Limited can also provide magnetic components products directly for saving logistic cost.
If you need special customized magnets or magnetic components, we can help you. You just need to provide technical drawings or manuscript as per your requirements.
Magnets for Medical equipment
Ndfeb magnets are universally used in nuclear magnetic resonance (NMR), medical equipment, medical treatment products, etc.
Manufacturers of Nuclear magnetic resonance (NMR) use a lot of ndfeb permanent magnets in the medical devices. It can diagnose the abnormal group and disease of human body. That is the nuclear magnetic resonance (NMR) imaging technology what we are familiar with. It is much better than the X-ray, two-dimensional echocardiography and nuclide or CT examination.
Magnets can be used not only to diagnose, but also help to cure disease. Many other medical products also include sintered ndfeb magnets, such as magnetic therapy pillows, magnetic therapy belt, etc.
Magnets for IT products
The magnets used in Electronic industry are the featured products of China Rare Earth Magnet Limited. This kind of magnets is widely used in mobile phones, computers, cameras, etc., the size of magnet is very small, but the demand is very large.
Speaker magnets
Sintered NdFeB is universally applied in various speakers. It can provide a permanent magnetic field for the coil embedded in the speaker paper plates. When audio signal flow through the speaker coil it produces a small magnetic field, this small magnetic field will be rebounded to the permanent magnetic field. So the paper plates will move back and forth toward to the back of the speaker. Thus when the audio signal flow swing, paper plates will swing back and forth, then the matched audio signal is generated.
Usually ferrite magnet is mainly used for low-end headphones, and neodymium iron boron is applied to high-end headphones. Headphones and speakers with NdFeB magnets have better sound quality, good flexibility and quality of voice calls, and accurately position of voice sound field.
Tags: NdFeB magnets, permanent magnet, magnetic assembly, magnet application, China magnet
