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Halbach Array Magnet

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10-88 Poles Halbach Array Magnet

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 Array Magnets

10-88 Poles Halbach Array Magnet

Halbach Array magnet arrangement is designed to produce a strong and directed magnetic field on one side while minimizing the magnetic field on the opposite side.

  • Brand:

    KINGS MAGNET
  • Item NO.:

    Array Magnets
  • Order(MOQ):

    2
  • Payment:

    T/T 100% INADVANCE
  • Product Origin:

    CN
  • Shipping Port:

    XIAMEN
  • Color:

    Black (usual) / Silver / Rare earth colors
  • Lead Time:

    30

Physical Properties:

No. Item Value
1 Density 7.3-7.7 g/cm³
2 Tensile strength 8 kg/mm2
3 Specific heat 0.12 k Cak (kg℃)
4 Modulus of elasticity 1.6x1011N/m2
5 Curie temperature 300-500℃
6 Resistivity 144 Ω.cm
7 Coefficient of thermal expansion 4 x 10-6 /℃
8 Stiffness 0.64 N/㎡
9 Hcj temperature coefficient -0.6 %/℃

What is a Halbach Array magnet?

A Halbach Array magnet is a specific configuration of permanent magnets that follows the principles of a Halbach array.The key feature of a Kings‘s Halbach Array magnet is the specific arrangement of magnets with alternating orientations. The magnets are positioned in such a way that their magnetic moments reinforce each other on one side and cancel each other out on the other side. This results in a focused and intensified magnetic field on the "active" side and a significantly weakened field on the "inactive" side.(as figure belowMagnetic field diagrams of rectangular and ring array magnets

 

*Magnetic field diagrams of rectangular and ring array magnets

Machining Capability:

    We have professional team, advanced equipment and well-trained QC staff to develop different sizes and shapes magnets as customer requirements which can be ensured with very high quality and precise tolerance.Please see below dimensions of ring neodymium magnet:

 

OD(mm)

ID(mm) H(mm) Tol.(mm)
3-300 1-200 1-100 ±0.05 & ±0.1mm

 

Where are they actually used?

Halbach Array magnets find applications in a variety of fields due to their unique magnetic properties. Some of the common areas where Halbach Arrays are used include:

  1. Electric Motors and Generators;
  2. Magnetic Levitation;
  3. Magnetic Resonance Imaging (MRI);
  4. Particle Accelerators;
  5. Linear Motors;
  6. Loudspeakers;
  7. Wind Turbines;
  8. Maglatch Systems;

These applications demonstrate the versatility of Halbach Arrays in providing efficient and focused magnetic fields, making them valuable in a wide range of engineering and scientific contexts.

 

Production process of NdFeB array magnet ring:

Raw Material Preparation→Powder Compaction→Sintering→Machining→Coating→Magnetization→Assembly into Arrays→Quality Control→Testing and Inspection

It's important to note that the production process can vary slightly depending on the specific requirements of the application and the manufacturer's processe

*Kings warehouse

Customization Process:

    Below is a brief step-by-step guide to customizing magnets, more details will be confirmed during communication.

 

We provide customization services. If you want to customize more complex magnets, please send us an email,thanks.

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