Halbach Array Magnet
New-Mag magnetics is a professional China Halbach Array Magnet manufacturer, factory and supplier. Engineers and researchers seeking unparalleled magnetic field performance consistently turn to advanced magnetic solutions like Halbach Cylinders & Planar Arrays. These sophisticated arrangements of permanent magnets are engineered to concentrate the magnetic field on one side while nearly canceling it on the opposite side. This unique property makes them indispensable for applications requiring a strong, focused, and spatially tailored magnetic field.
Common configurations include cylindrical assemblies for creating uniform fields within a bore and planar designs for surface applications. For systems requiring directed motion or precise field gradients, Linear Halbach Magnet Arrays offer an ideal solution, often used in maglev transportation, particle accelerators, and advanced propulsion systems. At the core of these technologies are the fundamental Halbach Array Magnets, which form the building blocks for these complex assemblies. Their design principle involves a specific rotational pattern of magnetization vectors, resulting in a self-shielding structure that enhances field strength without increasing the physical size or weight of the magnet assembly.
The exceptional performance of a Halbach Array Magnet stems from its precise engineering and high-quality materials. Key parameters that define its capabilities include magnetic field strength, spatial uniformity, surface field, and physical dimensions. We manufacture our Halbach arrays using premium-grade Rare Earth magnets, such as Neodymium Iron Boron (NdFeB) or Samarium Cobalt (SmCo), to ensure maximum energy product and thermal stability. Each magnet segment within the array is carefully oriented and bonded to achieve the desired field profile. Below are detailed specifications for our standard and custom Halbach Array Magnet offerings.
Core Specifications
- Magnet Material: Grade N52 NdFeB, N45SH, or SmCo 28
- Operating Temperature: Up to 150°C (302°F) for high-temperature grades
- Coating/Plating: Nickel-Copper-Nickel (Ni-Cu-Ni), Epoxy, or Parylene for corrosion protection
- Tolerance: Typical dimensional tolerance of ±0.05mm to ±0.1mm
- Field Uniformity: Can achieve better than ±1% over specified central volume
Standard Product Parameters
| Array Type | Outer Diameter / Width (mm) | Inner Diameter / Gap (mm) | Length / Height (mm) | Peak Surface Field (Tesla) | Typical Applications |
|---|---|---|---|---|---|
| Cylindrical Halbach | 50 - 300 | 20 - 150 | 50 - 500 | 0.5 - 2.0 | NMR, MRI, Beam Focusing |
| Planar Halbach | 100 - 600 | N/A | 10 - 50 | 0.3 - 1.2 | Magnetic Levitation, Separation |
| Linear Halbach | N/A | Air Gap: 5 - 50 | Custom Segment Lengths | 0.4 - 1.8 | Linear Motors, Conveyance Systems |
Customization Options
- Field Profile: Custom field shaping for specific gradients or uniformity requirements.
- Mounting & Integration: Precision housings, non-magnetic supports, and alignment features.
- Special Materials: Use of high-remanence or high-coercivity grades for extreme environments.
- Multi-Pole Arrays: Design and fabrication of complex multi-pole configurations for specialized motors or sensors.
Welcome to buy New-Mag magnetics high-quality Halbach Array Magnet! Contact us!
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