Product Overview
We supply pressed and sintered ceramic ferrite magnets for industrial use. These are hard, brittle magnets made from ferrite powder (barium or strontium base). They are chosen where stable magnetic performance, corrosion resistance and low cost matter more than the absolute highest energy per volume. Common roles include motor stators/rotors, magnetic separators, sensor elements and holding fixtures.
This page focuses on the practical details engineers and buyers need: material behaviour, common forms, handling points and supply options.
Material & manufacturing notes
- Composition: standard barium/strontium ferrite ceramic.
- Process: dry pressing → sintering → machining/grinding → magnetization.
- Mechanical: ceramic hardness; avoid impact and edge chipping.
- Temperature: stable in moderate ranges (service temperature depends on grade and design).
- Surface: normally uncoated; coatings optional when specified for assembly or appearance.
Ferrite's magnetic characteristics are repeatable batch-to-batch when pressing and sintering parameters are controlled. Provide tolerance bands and magnetization direction early in the drawing stage to avoid rework.
Common forms & typical tolerances
- Shapes: discs, rings, blocks, arc segments.
- Sizes: standard metric ranges plus custom cuts to drawing.
- Tolerances: typical ±0.2–0.5 mm on ceramics; tighter tolerances available after review.
- Magnetization: axial or radial as required.
If your assembly requires close air-gap control, note the ferrite surface finish and any planned coatings - these affect the effective gap and holding force.
Applications
- Motor and generator components where cost and durability are priorities.
- Magnetic couplings, brakes and clutches for low-to-medium torque applications.
- Sensors and encoder rings where stable flux and low drift are needed.
- Fixtures, chucks and holding devices in manufacturing lines.
Use ferrite where parts must be low-cost, corrosion-tolerant and dimensionally stable under normal industrial conditions.
Supply & customization
We handle bulk orders and OEM projects. Typical options: custom geometry, magnetization pattern, packaging for line feed, and minor coatings. To quote reliably, please provide: drawing (DWG/STEP), target pull/flux or functional requirement, expected annual volumes, and any environmental exposures.
Samples are available for fit and magnetic testing before committing to production volumes.
Quality control & documentation
Each production batch can include: dimensional inspection, magnetic flux/pull measurement and basic material traceability. For regulated or mission-critical projects we can extend testing to customer-specified certificates.
FAQ
Q: Do ferrite magnets need coating?
A: Not generally - ferrite resists corrosion; coatings are optional for specific aesthetics or handling needs.
Q: Can ferrite replace rare-earth in motors?
A: Only when design allows lower energy density; ferrite is cost-effective but larger magnet volume may be required.
Q: Minimum order quantity?
A: Depends on specification and tooling; standard sizes have low MOQ, custom parts will be quoted case-by-case.
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