Ferrite Magnet Manufacturer: Ceramic Ferrite Magnets for Motors, Speakers & Industrial Use
We manufacture and supply ferrite magnets (also called ceramic magnets) for high-volume OEM applications: motors, speakers, sensors, appliances, and magnetic holding systems. Reliable batch consistency, competitive cost, and stable delivery for global customers.
Ferrite Magnet Highlights
- Disc, block, ring and arc (segment) ferrite magnets
- Hard ferrite grades for motors, speakers and holding
- Mass production with stable magnetic & dimensional control
- No coating needed in most environments
What Are Ferrite (Ceramic) Magnets?
Ferrite magnets are permanent magnets made mainly from iron oxide combined with barium or strontium carbonate. They are one of the most widely used magnetic materials worldwide due to low cost, excellent corrosion resistance, and stable performance across a wide temperature range.
Ferrite vs. Rare Earth Magnets
Compared with NdFeB and SmCo, ferrite magnets have lower energy product but deliver outstanding price-to-performance in many high-volume designs. For motors, speakers and holding systems where space is not extremely limited, ferrite remains the most economical choice.
- Lower cost for mass production
- Higher electrical resistivity → reduced eddy current losses
- Better corrosion resistance without plating
Anisotropic & Isotropic Ferrite Magnets
We supply both anisotropic ferrite magnets (higher performance with preferred magnetic direction) and isotropic ferrite magnets (magnetizable in any direction) according to your product design, tooling strategy, and target cost.
- Custom magnetization: axial, radial, diametral, multi-pole
- Shapes: disc, block, ring, arc segments and custom geometry
- Support for drawings, samples, and 3D models
Ferrite Magnet Grades, Shapes and Typical Magnetic Properties
We manufacture ceramic ferrite magnets in a broad range of grades and geometries. The following table shows typical hard ferrite reference values. We confirm the grade, magnetization and tolerances based on your drawing and real working conditions.
Common Ferrite Magnet Shapes
- Disc: speakers, sensors, holding tools
- Block: fixtures, magnetic chucks, appliances
- Ring: speakers, motors, rotating devices
- Arc / segment: DC motors and generators
- Custom: made per drawing or 3D model
Tip: For motor arcs, share air-gap, rotor/stator dimensions and pole structure—this helps us propose the optimal arc size & magnetization.
| Grade | Br (mT) | HcB (kA/m) | HcJ (kA/m) | (BH)max (kJ/m³) | Max. Working Temp. |
|---|---|---|---|---|---|
| C5 / Y25 | 380–400 | 190–210 | 200–220 | 26–29 | ≤ 250°C |
| C8 / Y30 | 400–420 | 200–220 | 210–230 | 30–34 | ≤ 250°C |
| C11 / Y35 | 420–440 | 210–230 | 220–240 | 34–38 | ≤ 250°C |
Reference values only. We’ll confirm grade selection, tolerance and magnetization direction after reviewing your drawing and application.
Ferrite Magnet Manufacturing Process for Stable Batch Consistency
Process stability is the real KPI for OEM supply. Our ferrite magnet production follows a controlled route from powder preparation to final inspection, helping you minimize variance, control scrap rate, and keep assembly yield stable.
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1
Raw Material Preparation
High-purity iron oxide and barium/strontium carbonate are weighed and mixed according to target grade formula.
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2
Pre-sintering & Milling
Calcination creates clinker; controlled milling optimizes particle size distribution to improve magnetic performance and stability.
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3
Pressing (Field Orientation for Anisotropic)
Wet/dry pressing forms green compacts; anisotropic ferrite uses a magnetic field during pressing to align domains.
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4
Sintering & Controlled Cooling
High-temperature sintering forms dense ceramic magnets; controlled cooling supports microstructure stability and repeatability.
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5
Machining / Grinding
Grinding and machining achieve final dimensions—critical for motor arcs, rings and tight assembly stacks.
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6
Magnetizing & Final Inspection
Magnetization per direction/spec; dimensional + magnetic inspection before packing and shipment.
Ferrite Magnet Applications in Motors, Speakers, Appliances & Industry
Ferrite magnets deliver stable magnetic force at competitive cost—ideal for mass production and long-term supply. Below are typical industries and use cases.
DC Motors & Automotive Systems
Used in wipers, fans, pumps, window lifters and other motor systems. Ferrite’s resistivity helps reduce eddy current loss, while temperature stability supports reliable operation.
Speakers, Headphones & Buzzers
Ring/disc ferrite magnets are mainstream in loudspeakers and buzzers—balanced magnetic performance and cost for high-volume audio devices.
Home Appliances & Magnetic Tools
From compressors and washing machines to magnetic bases and fixtures, ferrite magnets provide durable holding force without corrosion concerns.
Why Work with Us as Your Ferrite Magnet Manufacturer
Price is only one line item. For OEM projects, you need stable batches, predictable lead time, and engineering support that reduces risk.
Engineering Support
Grade selection, magnetization direction, tolerance advice, and DFM alignment to protect assembly yield and performance.
Stable Mass Production
Standardized process route + QC checkpoints to control variance, reduce scrap, and keep supply consistent across batches.
Export & Delivery Reliability
Flexible shipping options for samples and production. Packaging and palletization aligned to international transport and warehouse handling.
Need a fast ferrite magnet quote?
Send drawing + grade/application + quantity + magnetization + delivery location. We’ll reply with a spec-aligned offer.
Ferrite Magnets – Frequently Asked Questions
Click to expand. For specific designs (motors/speakers), share your drawing and we’ll advise grade and magnetization scheme.