Description
HS Magnet’s 90 × 32 × 17 mm ferrite ring magnet is engineered for robust, cost-effective performance in loudspeaker motor assemblies and precision rotary devices. Made from high-quality barium ferrite (BaFe₁₂O₁₉), this ceramic magnet delivers stable magnetic power, excellent temperature resistance and dimensional accuracy for demanding audio and industrial applications.
Key Features
- Material & Magnetic Properties
• Grade: Ferrite (BaFe₁₂O₁₉)
• Maximum energy product (BHₘₐₓ): ~3.5 kJ/m³ (0.45 MGOe)
• Remanence (Br): ~0.25 T
• Coercivity (Hcb): ≥ 160 kA/m
• Operating temperature: – 40 °C to + 250 °C - Dimensions & Tolerance
• Outer diameter: 90.00 mm
• Inner diameter: 32.00 mm
• Thickness: 17.00 mm
• Standard tolerance: ± 0.50 mm (± 0.20 mm optional) - Surface & Finish
• Natural black ceramic surface
• Optional coatings: epoxy or rubber for enhanced impact and corrosion resistance
• Precision-molded for smooth, uniform ring shape - Packaging & Handling
• Individually foam-padded or poly-bagged to prevent chipping
• Supplied in bulk boxes, trays or custom blister packs
• Batch-number labeling for full traceability







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