Custom NdFeB cylinder and rod magnets with stable magnetic performance, precision machining, coating options and application-oriented support for industrial magnetic systems.
We support customized NdFeB cylinder magnets and other shapes based on application requirements, magnetic circuit design, working temperature, coating environment, dimensional tolerance, and assembly structure.
From N35 to N52, including H, SH, UH and other high-temperature grades.
Cylindrical rods, short cylinders, long bars, chamfered ends, stepped cylinders, drilled holes, countersunk holes, and customized round geometries.
Custom dimensions with precision machining and tolerance control support.
Ni-Cu-Ni, epoxy, zinc and other coating options for different environments.
Axial magnetization is the most common option. Radial, diametrical, and multi-pole magnetization can also be customized for sensors, motors, and magnetic assemblies.
Send your drawing or application requirements for custom NdFeB ring magnet solutions.
We support global industrial buyers with custom sintered NdFeB magnets from sample development to massproduction, combining in-house manufacturing capability, gualified supply resources, and application-orientedtechnical communication.
Our own and qualified partner manufacturing facilities each offer over 3,000 tons of annual sintered NdFeB production capacity, supporting stable lead times, scalable production planning, and long-term supply reliability.
With over ten years of projectand manufacturing experience,we support customers incontrolling key production factors such as machiningtolerance, magneticpertormance consistency,coating reliability and process inspection.
Our magnets are widely used in industrial applications where stable quality,clear communication, and reliable project follow-up are important for both development and mass production projects.
Neodymium cylinder magnets are widely used when strong magnetic force, compact size, and a simple round shape are required. Compared with ferrite or AlNiCo cylinder magnets, sintered NdFeB cylinder magnets provide much higher magnetic performance, making them suitable for compact and high-efficiency magnetic designs.
The cylindrical shape allows these magnets to be easily inserted into drilled holes, tubes, sleeves, housings, sensors, and precision mechanical components. This makes neodymium cylinder magnets a practical choice for applications where accurate positioning and stable magnetic force are both important.
Depending on the design requirements, neodymium cylinder magnets can be customized by diameter, length, grade, coating, tolerance, chamfer, and magnetization direction. Common magnetization options include axial magnetization and diametrical magnetization for specific sensor, coupling, or rotating applications. ( View NdFeB Magnet Grade Data )
Thanks to their compact structure and strong magnetic output, neodymium cylinder magnets are commonly used in sensors, motors, magnetic holders, reed switches, positioning devices, precision instruments, and custom magnetic assemblies.
Neodymium cylinder magnets are usually supplied with protective coatings to prevent oxidation, corrosion, and surface damage during assembly and long-term use. Since cylinder magnets are often inserted into holes, tubes, housings, or sensor components, the coating should be selected based on the working environment, assembly method, humidity level, and dimensional requirements.
A standard and widely used coating for neodymium cylinder magnets. It provides a bright metallic finish, good surface hardness, and basic corrosion protection for general industrial applications.
A cost-effective coating option with basic corrosion resistance. Zinc-coated cylinder magnets are suitable for indoor use, general holding applications, and projects with cost-sensitive requirements.
A protective coating with improved corrosion resistance, usually supplied in black or other customized colors. Epoxy is suitable for humid environments, bonded assemblies, and applications where better surface protection is required.
Custom neodymium cylinder magnets can be manufactured with different diameters, lengths, chamfers, countersunk holes, grooves, slots, and other machining features based on your drawings or assembly requirements. Whether the magnets are used for sensor positioning, shaft mounting, magnetic holding, or precision assemblies, the shape, tolerance, coating, and magnetization direction can be customized to ensure proper fit and stable magnetic performance in the final application.
Rod magnets, also known as cylinder magnets, are commonly used in applications where strong magnetic force, compact size, and a cylindrical shape are required. Their round geometry makes them easy to insert into holes, tubes, housings, and precision components.
Sensors, Reed Switches, Meters, and Detection Devices
Cylinder magnets are widely used as magnetic triggers or field sources in Hall sensors, reed switches, meters, encoders, and detection devices. They can help detect position, rotation, movement, or changes in magnetic fields when used together with suitable sensing components.
Medical and Laboratory Equipment
Rod magnets can be used in laboratory and medical-related equipment, such as magnetic bead separation racks, sample processing devices, and compact magnetic holding or separation components.
Small Motors, Rotors, and Magnetic Assemblies
High-performance neodymium cylinder magnets are often used in small motor rotors, magnetic couplings, rotary sensors, and custom magnetic assemblies. For rotating or sensing applications, diametrically magnetized cylinder magnets may be selected depending on the magnetic circuit design.
Neodymium cylinder magnets can be manufactured with different magnetization directions depending on the application and magnetic circuit design. The most common option is axial magnetization, where the north and south poles are located on the two flat circular faces of the cylinder. For special applications such as sensors, rotary systems, magnetic couplings, or positioning devices, diametrical magnetization can also be supplied, with the poles located on opposite sides of the curved surface.
Engineering the Extraordinary, Making the Impossible Real
Magnet grade has a direct impact on cost. When the performance grade or coercivity level increases, the material formulation and production process often become more demanding. Higher coercivity grades may require the addition of medium and heavy rare earth elements, as well as more advanced manufacturing processes such as grain boundary diffusion.
As a rough reference, when the performance grade increases by one level, for example from N35 to N38, the material cost may increase by around 5%–15%. When the coercivity level increases, such as from N52M to N52H or from N40SH to N40UH, the cost may increase by approximately 10%–15%.
However, the final price is not determined by grade alone. Coating requirements, magnet size, tolerance, magnetization direction, custom shape, order quantity, and inspection standards can also affect the total cost.
If you are not sure which grade is suitable for your project, please contact us with your application details. Our team can help recommend a suitable NdFeB grade based on working temperature, required magnetic force, coating environment, and cost target.
Get a QuoteIn general sintered NdFeB grade naming, the number indicates the maximum energy product range, while the suffix letter indicates the intrinsic coercivity class. For Chinese standard grades, this classification is defined in GB/T 13560-2017.
For example, in the grade N35H :
“N” indicates that the magnet is made from NdFeB material, also known as neodymium iron boron.
“35” represents the performance grade and refers to the maximum energy product (BHmax). The higher the number, the higher the BHmax value, and the stronger the magnet can be at the same size.
“H” indicates the intrinsic coercivity class. Compared with standard N grade, H-grade materials offer higher Hcj, helping reduce irreversible demagnetization risk under elevated temperature or reverse magnetic field.
You can check detailed NdFeB magnet grade performance data, including Br, Hcj, Hcb, BHmax and maximum operating temperature.
View NdFeB Magnet Grade Data →Sintered NdFeB magnets require a controlled manufacturing process from raw material batching to final inspection. Each step affects magnetic performance, dimensional accuracy, coating reliability, and long-term stability in industrial applications.
Rare earth elements, iron, boron, and alloying elements are prepared according to the required magnet grade and performance target.
The raw materials are melted and cast into alloy flakes to form the base material for sintered NdFeB magnet production.
The alloy is processed into fine powder under controlled conditions to support stable magnetic properties and sintering performance.
The powder is aligned in a magnetic field and pressed into green compacts, forming the basic shape and magnetic orientation.
The pressed compacts are sintered under vacuum to achieve high density, strong magnetic performance, and stable material structure.
Key magnetic properties such as Br, Hcj, Hcb, and BHmax are tested to confirm that the material meets the required grade.
Blocks are cut, ground, or shaped to meet customer drawings, dimensional tolerances, and assembly requirements.
Coatings such as Ni-Cu-Ni, zinc, epoxy, or other protective layers are applied to improve corrosion resistance.
Magnets are magnetized according to the required direction, pole orientation, or custom magnetic circuit design.
Dimensions, coating quality, magnetic direction, surface field, flux, and appearance can be checked based on project requirements.
Magnets are packed with suitable magnetic shielding, separation materials, and export-ready packaging for safe transportation.
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