Custom Halbach Arrays
Concentrated magnetic fields. Reduced stray flux. Engineered for precision.
Halbach arrays are specialized magnet assemblies that focus magnetic flux on one side of the array while suppressing it on the opposite side. This field-shaping behavior makes these arrays ideal for applications that require directional magnetic performance, tighter system packaging, and reduced magnetic interference.
At Adams Magnetic Products, we support stock or custom magnets and design custom Halbach arrays and subassemblies, supported by in-house magnetic modeling to help you evaluate field performance and optimize designs before build.
What Are Halbach Arrays?
A Halbach array uses a sequence of magnets with rotating magnetization directions to reinforce the magnetic field on one side and cancel it on the other.
Typical advantages:
- Higher usable flux density in the working region
- Reduced stray fields on the “quiet” side
- Improved signal quality in sensing/measurement environments
- Potential reduction in shielding requirements
- Compact assemblies for tight packaging constraints
Traditional Magnet Array
Halbach Array
Traditional arrays radiate flux on both sides. Halbach arrays concentrate flux where it’s useful and reduce it where it’s not.
In-House Magnetic Modeling
Design success with Halbach arrays depends on getting field strength, directionality, and magnet orientation right. Adams provides in-house magnetic modeling to support the development of Halbach array magnets.
Our engineering team provides support for:
- Field strength and field uniformity evaluation
- Directionality optimization (strong side vs. quiet side)
- Geometry and segmentation tradeoffs (performance vs. manufacturability)
- Material selection guidance (e.g., NdFeB vs. SmCo)
- Tolerance sensitivity and repeatability planning
This helps ensure the design you validate is the design you can manufacture consistently.
Halbach Array Capabilities
We design and fabricate Halbach arrays tailored to your application requirements, including:
- Linear and radial configurations
- Custom arc segments and multi-piece arrays
- Precision magnetization orientation control
- Bonded and mechanically retained assemblies
- Prototype through production volumes
- NdFeB and SmCo options (based on environment and performance needs)
Our team supports both stock and custom magnets and builds Halbach array magnets that meet your performance and manufacturing requirements.
Where Halbach Arrays Are Used
Halbach arrays are a strong fit when performance depends on controlled magnetic fields and low stray flux. Companies looking for Halbach array magnets for sale often need application-specific assemblies for systems such as:
- Rotary and linear encoder systems
- Precision sensing and measurement assemblies
- Magnetic couplings
- Robotics mechanisms and end effectors
- Automation equipment and positioning systems
- Scientific and laboratory instrumentation
- Specialty industrial magnetic assemblies where EMI/stray field reduction matters
Engineering Collaboration
Bring us in early, and we can help streamline the path from concept to build.
We support:
- Application review and requirements capture
- Modeling-guided design recommendations
- Design for Manufacturability (DFM) input to address assembly forces, safe magnet handling, alignment control, and repeatable fixturing
- Prototype builds and performance verification
- Production scaling with consistent orientation and inspection processes
Quality and Manufacturing
With over 75 years of magnetics experience, Adams supports reliable Halbach array magnets production through:
- Controlled processes for orientation and assembly
- Inspection and verification planning
- Domestic engineering and assembly support
- Supply continuity through qualified sourcing
Let’s Talk About Your Application
If you’re exploring ways to shape magnetic fields, improve directionality, reduce stray flux, or enhance sensing performance, we can help.