Finding the right neodymium ring magnet manufacturer is essential when a project requires more than a standard permanent magnet. Ring magnets often require customized dimensions, specific magnetization directions, tight tolerances, precise machining, or specialized application performance. In 2026, finding a reliable supplier for custom neodymium ring magnets can significantly impact product quality and operational efficiency. In this article, we review the top 8 neodymium ring magnet manufacturers, examining their technical capabilities, customization options, quality systems, and primary industrial applications.
List of Top 8 Neodymium Ring Magnet Manufacturers in 2026
Company Profile:
Horizon Magnetics is a China-based rare earth magnet manufacturer offering customized neodymium ring magnets for industrial applications. Horizon supports three major ring magnet configurations: radially magnetized, diametrically magnetized, and axially magnetized rings. Its published ring magnet range covers outer diameters of approximately 1.5–180 mm, inner diameters of 0.4–100 mm, and thicknesses of 0.4–150 mm, with general tolerances around ±0.1 mm and tighter tolerances available for particular requirements.
The company also highlights advanced machining capabilities for ring magnets, allowing production methods to be selected according to dimensions, magnetization direction, production quantity, scrap rate, and overall cost efficiency.
Main Applications:
Its ring magnets are widely used in motors, medical equipment, automotive systems, aerospace, power generation, speakers, magnetic bearings, couplings, and industrial sensors.
Best For: OEM buyers requiring customized NdFeB ring magnets with flexible dimensions and multiple magnetization options.
Company Profile:
SDM Magnetics is a China-based permanent magnet and magnetic assembly manufacturer with particular expertise in specialized ring magnet structures. One of its notable capabilities is the production and development of radially oriented ring magnets. SDM describes these as one-piece anisotropic ring structures that can be used in certain motors and magnetic couplings instead of assemblies made from multiple arc segments.
SDM also works with multipole ring magnet configurations. Its technical materials describe both axially and diametrically multipole ring structures, with radially oriented designs used as one route for developing specialized multipole magnets. This makes SDM particularly relevant to engineering teams working on rotating equipment where magnetic field configuration is a critical component of design.
Best For: Motors, magnetic couplings, and projects requiring specialized radial or multipole ring magnet configurations.
Company Profile:
Tongchuang is a China-based manufacturer specializing in sintered NdFeB permanent magnets, having been manufacturing permanent magnets since 2004. Ring magnets form a key part of its core product portfolio, with the company specifically presenting Ring Magnet and Radial Oriented Ring Magnet products.
Its radial-oriented ring magnets are heavily positioned for applications including servo motors, brushless motors, automotive motors, and robot driving motors. This specialization gives Tongchuang a clear position among suppliers considered for motor-related ring magnet projects. Its broader NdFeB manufacturing experience also allows customers to source other permanent magnet geometries when a project requires several magnet components.
Best For: Servo motors, BLDC motors, automotive motors, and robotics applications requiring radial-oriented ring magnets.
Company Profile:
Fullzen Technology is a China-based custom magnet manufacturer with a dedicated neodymium ring magnet product range. Its ring magnets can be fully customized by outer diameter, inner diameter, thickness, grade, magnetization direction, and coating. Fullzen currently covers grades from N35 to N54, including high-temperature grades, with tolerances down to approximately ±0.05 mm for applicable designs.
The company also offers specialized products such as large neodymium ring magnets and serves applications in electric motors, rotary encoders, magnetic couplings, medical devices, and automation systems. Fullzen's broader manufacturing portfolio includes sintered NdFeB magnets, SmCo magnets, and other customized magnetic products.
Best For: Custom ring magnet projects requiring specialized dimensions, grades, large rings, or application-specific configurations.
Company Profile:
Mainrich Magnets is a custom magnet manufacturer with experience dating back to 1992. Its product portfolio includes standard and customized NdFeB magnets, including dedicated neodymium ring magnets. Mainrich's ring magnet portfolio is supported by a broader custom manufacturing capability covering different shapes, grades, coatings, and tight tolerances.
The company states that its quality system is certified to ISO 9001:2015 and IATF 16949 and that its magnets serve motor, sensor, automotive, electronics, and robotics applications. This combination of long-term NdFeB experience and custom production makes Mainrich a practical option for OEM buyers that need ring magnets as part of a larger magnet program.
Best For: Industrial OEMs seeking customized ring magnets and long-term NdFeB manufacturing support.
Company Profile:
HITECH Magnetics is a China-based magnet manufacturer supplying NdFeB magnets, magnetic rotors, magnetic assemblies, and customized magnetic components. Its dedicated NdFeB ring magnet product supports custom outer diameter, inner diameter, thickness, coating, grade, and magnetization direction. The published product specifications include N35–N52 grades, ±0.05 mm tolerance, nickel, zinc, and epoxy coatings, alongside axial or diametrical magnetization.
HITECH also provides other ring-shaped products, including radially magnetized N52 rings and specialized ring magnets for speakers. Founded in 2009, the company operates joint-venture facilities in Ningbo and Zhuji with robust NdFeB and SmCo manufacturing capabilities.
Best For: OEM customers seeking precision custom ring magnets for motors, sensors, speakers, couplings, and automation equipment.
Company Profile:
Great Magtech offers neodymium ring magnets as part of its broader permanent magnet portfolio. Its published ring magnet products support customized dimensions and different magnetization configurations. Great Magtech identifies axial and diametrical magnetization as common options, while radial and multipole magnetization can also be produced for suitable ring magnet designs.
The company's customized neodymium magnet range includes multiple NdFeB grades, different coatings, and flexible magnetization options. It also provides samples for customized projects. Its ring magnet applications include loudspeakers, motors, magnetic couplings, consumer electronics, medical equipment, and sensors.
Best For: Industrial and OEM applications requiring customized ring dimensions, coatings, and magnetic configurations.
Company Profile:
Hesheng Magnetics is a China-based NdFeB manufacturer established in 2003. The company operates a complete production chain covering raw materials through finished magnets and lists ring magnets among its featured products. Its dedicated ring magnet offering includes axial and radially magnetized ring magnets, with customized dimensions and a tolerance of approximately ±0.05 mm.
Applications include compact motors, sensors, magnetic couplings, speakers, automation, renewable energy, and consumer electronics. Hesheng also highlights special-shaped magnets, magnetic assemblies, and intelligent manufacturing as key areas of expertise. Listed certifications include ISO 9001, ISO 14001, ISO 45001, and IATF 16949.
Best For: Industrial and automotive buyers requiring customized axial or radial NdFeB ring magnets.
The manufacturers featured above have overlapping capabilities, but their core technical strengths vary. Sourcing teams should evaluate suppliers against specific engineering tolerances, magnetic configurations, and production scale.
| Manufacturer | Ring Magnet Focus | Customization | Magnetization | Best Fit |
|---|---|---|---|---|
| Horizon Magnetics | Custom NdFeB rings | High | Axial / Diametrical / Radial | OEM & industrial |
| SDM Magnetics | Radial-oriented & multipole rings | High | Radial / Multipole | Motors & couplings |
| Tongchuang | Ring & radial-oriented rings | High | Radial | Motors & robotics |
| Fullzen Technology | Custom & specialized rings | High | Multiple | OEM & specialty |
| Mainrich Magnets | Custom ring magnets | High | Custom | Industrial OEM |
| HITECH Magnetics | Precision custom rings | High | Axial / Diametrical / Radial | Motors & sensors |
| Great Magtech | Industrial ring magnets | High | Multiple | Industrial & OEM |
| Hesheng Magnetics | NdFeB & radial rings | High | Axial / Radial | Automotive & industrial |
The right supplier depends directly on what the ring magnet needs to accomplish within your final assembly. For motor and high-speed rotating applications, manufacturers with demonstrated radial or multipole ring magnet capabilities—such as SDM and Tongchuang—deserve close technical evaluation.
For projects requiring broad structural customization, suppliers such as Horizon Magnetics, Fullzen, Mainrich, HITECH, Great Magtech, and Hesheng provide documented options for custom dimensions, custom magnetic grades, and tailored coatings.
For technical details on magnet types, grades, and coatings, explore our comprehensive China neodymium ring magnet guide to refine your procurement process.
For buyers seeking a trusted custom neodymium ring magnet manufacturer, Horizon Magnetics is an ideal option for your initial RFQ shortlist. Horizon supports axial, diametrical, and radial magnetization across a broad size range covering outer diameters from 1.5 to 180 mm. Furthermore, production machining methods can be optimized based on your required dimensions, order volume, scrap tolerance, and budget.
When submitting an RFQ, simply provide your required dimensions, magnet grade, magnetization direction, coating, tolerances, application, and batch quantity. Alternatively, you can directly request a custom neodymium ring magnet quote with your specific requirements.
Neodymium ring magnets are widely used in electric motors, sensors, speakers, magnetic couplings, automotive assemblies, medical devices, power-generation systems, and high-precision mechanical actuators requiring a strong circular permanent magnetic field.
Yes. Customization options typically cover outer diameter (OD), inner diameter (ID), thickness, magnetic grade (N35 to N54 and high-temperature series), surface coating (Ni, Zn, Epoxy), engineering tolerances, and magnetization direction (axial, diametrical, radial, or multipole).
To obtain an accurate quotation, provide the manufacturer with required dimensions (OD x ID x Thickness), desired grade, magnetization direction, plating, tolerance requirements, expected volume, and application details. Providing a technical CAD drawing is recommended for complex geometries.
Selecting the right supplier depends on the specific engineering and operational demands of your project. The top suppliers in 2026 offer unique advantages ranging from complex radial-oriented ring magnets for motor assemblies to precision custom geometries for specialty OEM applications. For projects requiring custom dimensions alongside versatile magnetization options, Horizon Magnetics provides dependable manufacturing capabilities for strong neodymium magnets tailored to global industrial standards.
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This comprehensive guide provides global buyers with essential insights on technical specifications, magnetization options, manufacturing processes, coatings, supplier evaluation criteria, and RFQ requirements for sourcing custom China neodymium ring magnets.
Discover the top 8 neodymium ring magnet manufacturers in 2026. Compare their customization, magnetization, manufacturing capabilities, and applications.
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