High Precise Magnetic Rotor Assemblies, Rotor and Stator magnetic lamination assemblies, Magnetic Motor Shafting, Electric Motor Shafts, permanent magnet motor shafting China Manufacturer MPCO MAGNETICS can design, produce and supply High Precise Magnetic Rotor Assemblies Magnetic Shaft to customer requirements. 1. Materials Magnet: Neodymium Magnet Sleeve: Austenite stainless steel, such as SS304, SS316. Main part: […]
Multipole Anisotropic NdFeB Ring Magnet, Permanent Radial Ring Anisotropic Magnet, Black Epoxy Coated Super Strong Multipole Radial Neodymium Magnets, Radially Oriented NdFeB Ring Magnets, Sintered Radial Neodymium Iron Boron, Anisotropic Nd-Fe-B Ring Magnet
Black Epoxy Coated Multipole Anisotropic NdFeB Ring Magnet Feature:
Sintered radial neodymium iron boron ring magnets are oriented by radial alignment of powders. It can be straight, skew or unipole magnetized. There are two production methods – sintered powder or hot press (MQ3) method. Compared to traditional arc magnets or IPM (internal permanent magnet) assemblies, radial rings can improve motor performance and increase yields over traditional motor assembly methods. These magnets are widely used in DC brushless and servo motors for robotic and automotive applications.
Permanent Radial Ring Anisotropic Magnet
The biggest role of radially oriented technology is helping anisotropic magnet to achieve multi-polar magnetization, and extend its application in various areas.
Known as Rare Earth magnets, Neodymium Iron Boron magnets are alloys of the Lanthanide group of elements. NdFeB magnets offer the highest energy product per unit mass, and highest energy product per unit cost of any current permanent magnet material. Energy Products range from 30 to 55 MGOe, with recommended operating temperatures from 60º – 220ºC, and the temperature coefficient of residual induction ranges from -0.09 to -0.13%/°C.
NdFeB – Injection Molded
NdFeB – Bonded
NdFeB – Sintered
Due to the constraint of material, sintered neodymium used in motors is assembled into ring by segment magnet. China Magnets Supplier MPCO INC. can offer radially orientated Sintered NdFeB rings with a wide variety of grades and different coating options after researching continually in Sintered NdFeB material and its structure, orientation compression, magnetizing method, sintering and heat treatment process. Radially orientated sintered NdFeB ring greatly improve motor output properties, significantly reduce the motor loss at the same time.
The radially oriented ring magnet means that the magnetization direction of the ring magnet is in a radial pattern through radial direction. Even if many sales in the magnet industry unable to distinguish radially oriented ring magnet and diametrically magnetized ring magnet until now.
MPCO Magnetics prepares its anisotropic powders by either casting an alloy melt into a mold, or strip casting. Strip casting offers the advantage of better chemical stability. Subsequently, the ingot from the mold or the flakes from strip casting are pulverized to a uniform grain/particle size. The best method for obtaining the desired grain size is by HDDR. The HDDR [hydrogenation-decomposition-desorption-recombination] process yields a more homogenous particle size with a minimum of α-Fe, and Nd-rich phases. Anisotropic Nd-Fe-B, HDDR powders prepared from strip cast alloys are used for the HAST [Highly Accelerated Stress Test] grades of NdFeB Magnets, including N, H, SH, UH, EH, and MPCO Magnetics exclusive “W” grades for Wind Power applications.
Other new products
Standard and skewed pole types are available for ring. OD, ID and H are all critical factors, pole numbers are also dependent on size, so for further information of radially orientated Sintered NdFeB rings, please contact us directly. Our engineer will evaluate your magnet design and give you some suggestion if needed. Black Epoxy Coated Sintered Neodymium Radial Magnet