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Radial Oriented Ring Magnet

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2 poles 4 poles whole ring multi-pole radial magnet

ring multi-pole radial magnet
ring multi-pole radial magnet
ring multi-pole radial magnet

2 poles 4 poles whole ring multi-pole radial magnet

Radially oriented neodymium iron boron (NdFeB) ring magnets are state-of-the-art ring magnets with diverse magnetization patterns in radial direction.

  • Order(MOQ):

    100
  • Payment:

    100% / 70% INADVANCE
  • Product Origin:

    China
  • Shipping Port:

    Xiamen/Shanghai/Ningbo
  • Color:

    Black
  • Lead Time:

    25-35 days

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 magnetsbonded 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

 

Features of Radially Oriented NdFeB Ring Magnets

1. High dimensional accuracy.
2. Optional magnetization patterns including single pole, straight multi-pole and skew multi-pole types.
3. A single ring magnet makes assembly and installation easy and low cost.
4. Simple and stable structure guarantees excellent dynamic balance performance.
5. Uniform magnetic properties and magnetization waves distribution contribute to low motor noise and smooth torque output.

Although radially oriented NdFeB ring magnets have the above advantages, they need a pressing mold and a magnetizing fixture for production including samples preparation. A set of these custom tools costs 1,000 to 7,000 USD depending on custom magnet’s specifications, so the cost of product development is relatively high in the early stage.

 

Applications of Radially Oriented NdFeB Ring Magnets

1. Servo motors,
2. Spindle motors,
3. Magnetic couplings,
4. Electrical power steering motors,
5. DC motors, etc.

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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  

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