Radially Magnetized Ring Magnets

Short Description:

Fullzen Technology radially magnetized NdFeB ring magnets are engineered using advanced directional field alignment and precision multi-pole magnetization technology. Unlike axial magnetized rings, the magnetic flux is distributed radially across the circumference, creating a highly efficient air-gap field optimized for rotational systems.

This structure significantly improves electromagnetic efficiency in motor and sensor applications, delivering:

Up to higher usable air-gap flux density vs conventional axial designs (application-dependent)
Stable sinusoidal field distribution for encoder accuracy
High pole-count capability (2–100 poles)
Inner diameter range: 2mm to 500mm

These magnets are widely used in servo motors, speed sensors, encoders, wind turbines, and high-precision industrial automation systems. Fullzen also provides magnetic simulation (FEA) support and application-based design optimization.

Customized logo: Min. order 1000 pieces

Customized packaging: Min. order 1000 pieces

Graphic customization: Min. order 1000 pieces

Material: Strong Neodymium Magnet

Grade: N35-N52, N35M-N50M, N33H-N48H, N33SH-N45SH, N28UH-N38UH

Coating: Zinc,Nickel,Gold,Sliver etc

Shape: Customized

Tolerance: Standard tolerances, usually +/-0..05mm

Sample: If there is any in stock, we will send it within 7 days. If we don't have it in stock, we'll send it to you within 20 days

Application: Industrial Magnet

Size: We will offer as your request

Direction of Magnetisation: Axially through height

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What Are Radially Magnetized Ring Magnets?

Radially magnetized ring magnets are permanent magnets in which magnetic poles are arranged along the radial direction of a circular geometry.

Key characteristics:

Magnetic field flows from inner diameter to outer diameter (or reverse)
Uniform circumferential flux distribution
Designed for dynamic rotational systems rather than static holding applications
Enables high-precision multi-pole magnetic encoding

This magnetization method is essential in high-speed motors and closed-loop feedback systems.

We sell all grades of neodymium magnets, custom shapes, sizes, and coatings.

Fast Global Shipping: Meet standard air and sea secure packing, More than 10 years of export experience

Customized is Available: Please offer a drawing for your special design

Affordable Price: Choosing the most suitable quality of products means effective cost savings.

Fullzen Radial Ring Magnet Capabilities

Fullzen Technology has over 15 years of experience in rare-earth magnet engineering and manufacturing, specializing in high-consistency radial magnet solutions.

Diameter range: 2mm – 500mm (ID)
Outer diameter capability: up to 600mm
Pole count: 2 – 100+ poles
Angular accuracy: ±0.5° pole positioning tolerance
Flux uniformity: up to ±3% (precision grade designs)
Materials: NdFeB
Temperature grades: 80°C – 200°C
Coatings: NiCuNi / Epoxy / Zinc

Custom Radial Magnet Solutions

Every application requires a different magnetic field profile, mechanical constraint, and thermal performance requirement.

Fullzen provides full-cycle engineering support:

✅OEM/ODM custom design based on drawings or performance targets

✅Magnetic field simulation (FEA-based optimization)

✅Rapid prototyping (7–15 days)

✅Manufacturing options: sintered / bonded / hot-pressed NdFeB

✅Magnetization methods: multi-pole radial, sinusoidal waveform, Halbach array

✅Assembly support: flux guides, shielding structures, mounting integration

Sample Program

️To reduce development risk, Fullzen provides structured prototype validation:

️↪️Standard samples: 3–5 days delivery

️↪️Custom samples: 7–15 days

️↪️Full inspection report included (dimensions, flux, field mapping)

️↪️Low-cost prototyping with credit applied to mass production orders

Why Choose Fullzen for Radial Magnet Rings?

10+ years of rare-earth magnet manufacturing expertise

In-house tooling and magnetization equipment

Strong capability in multi-pole precision engineering

Stable batch-to-batch consistency for OEM production

- Engineering support from design to testing

Fast delivery: standard 7 days / custom 20–30 days

FAQ

What is the difference between radial and axial magnetization?

Radial magnetization produces a circumferential field ideal for rotating systems, while axial magnetization produces end-face fields mainly used for holding applications.

How is magnetic uniformity controlled?

Through precision pole shaping, advanced multi-pole magnetizing fixtures, and FEA simulation optimization.

Do you support third-party testing?

Yes, SGS, CTI, and other accredited labs can be arranged upon request.

What are the size limits?

Inner diameter from 2mm up to 500mm; larger custom designs available upon engineering review.

What is the lead time?

Standard parts: 3–5 days. Custom parts: 20–30 days depending on complexity.

What is the MOQ?

Standard items: 1 piece. Custom production: 500–5000 pcs (pilot runs supported).

What causes demagnetization?

Excess temperature, reverse magnetic fields, or mechanical shock. Proper material selection prevents performance loss.

Request Your Free Quote Today

Provide your application requirements (dimensions, pole count, temperature, torque target), and Fullzen Technology engineering team will deliver a custom magnetic solution and quotation within 24 hours.