Multipole Magnet

In general, they provide high performance and cost-effective alternatives to arc/segment magnets. According to different production processes, radially oriented NdFeB ring magnets include sintered NdFeB ring magnets, bonded NdFeB ring magnets and hot-pressed NdFeB ring magnets.   Magnetization Pattern of Radially Magnetized Ring Magnet   Anisotropic magnets, which have a preferred magnetization direction, can also be radially magnetized in special patterns if proper radial orientation is applied during the pressing. This allows for skew magnetization to be achieved on a radial ring magnet, reducing cogging torque in motor applications. Both sintering and hot-pressing techniques can be used to achieve radial orientation.   Multi-pole radially ring magnet (Straight) Multi-pole radially ring magnet (Skew) Single pole radially ring magnet       Dimensions of Radial Oriented Ring Magnet   Dimension Size Range Tolerance Coaxiality Cylindricity OD 20-75MM ±0.05mm 0.1mm 0.04mm ID 15-68MM Thickness 2-7MM Height 5-50MM Grade N30-N48,N30M-N4M,N30H-N42H,N30SH-N40SH,N20UH-N38UH,N28EH-N35EH Coating NiCuNi,Epoxy,etc. Application Robotics and industrial automatic production line,etc.    We have many molds, please see below, offer you some items for reference. Welcome to send us an inquiry, then we will match a close mold for your reference. Which can help you save more cost to develop a new mold on prototype stage.   φ10.10-φ7-1.60 φ13-φ8-4 φ18-φ8-4 φ19.40-φ8-5 φ19-φ12-30 φ19-φ10-30 φ23-φ21-3.30 φ24-φ8-20 φ25-φ23-7 φ29-φ20-25 φ30-φ24-28  φ30-φ26-36  φ33-φ29-20  φ35-φ29-50  φ39-φ30-28  φ40-φ32-75  φ44-φ39-30  φ49-φ40-30  φ52-φ40-5  φ54-φ48-40  φ56-φ50-10  φ58-φ54-3  φ62-φ57-46  φ66-φ60-26  φ76-φ70-35 φ87-φ81-27 φ8-φ3-W0.90-6 φ8-φ6.45-1.65 φ9.02-φ3.81-3.18 φ95.60-φ84.80-34.90   The main advantages of radiating magnetic rings include: 1, the radiation ring is an integral magnetic ring, the dimensional accuracy is better controlled, the assembly process is more simplified; 2, the surface field is sinusoidal waveform, uniform distribution, small transition area between magnetic poles, so the motor is stable and low noise; 3, the magnetization mode and magnetic field distribution are diverse, can be unipolar radiation, multi-pole direct charge and multi-pole oblique magnetization, magnetic circuit design is more flexible.   Applications of Radially Oriented NdFeB Ring Magnets Radiating magnetic ring is a kind of circular permanent magnet with special orientation. It is magnetized along the radial circumference of the magnetic ring. It can be widely used in servo motor, magnetic drive, magnetic bearing and sensor.   Certificate Packing & Delivery     Contact us Email: tanya@kingsmagnet.com Whatsapp: +008618030019552  

These are multipole bonded neodymium ring magnet, with black epoxy coating.

A Halbach Array is a special arrangement of permanent magnets that augments the magnetic field on one side of the array while reducing the field to near zero on the other side. This was achieved by having a spatially rotating of magnetization.

It is convenient to manufacture multi-pole magnetized, excellent performance consistency and uniformity, are widely used in all kinds of micro motors and sensor systems

Neodymium magnet (NdFeB), commonly known as "rare earth" magnet, is a high-performance permanent magnet made of neodymium, iron and boron alloys.