Description
HS Magnet’s Alnico 2 Ring-Shaped Magnet (outer Ø 11.90 mm × inner Ø 8.10 mm × thickness 1.90 mm) is CNC-ground from high-purity Alnico 2 alloy to deliver reliable flux, excellent temperature performance and long-term stability. Its slim ring geometry concentrates the magnetic field at the pole faces, making it perfect for compact assemblies and precision instruments.
Key Features
• Material & Magnetic Properties
– Grade: Alnico 2
– Remanence (Br): ≈ 0.48 – 0.55 T
– Intrinsic coercivity (Hci): ≈ 10 – 15 kA/m
– Maximum energy product (BHₘₐₓ): ≈ 3.5 – 4.5 MGOe
– Maximum operating temperature: up to 500 °C
• Dimensions & Tolerances
– Outer diameter: Ø 11.90 mm
– Inner diameter (bore): Ø 8.10 mm
– Thickness: 1.90 mm
– Standard tolerance: ± 0.05 mm (± 0.02 mm optional)
• Surface Finish & Coatings
– Standard: oxide-passivated
– Optional: nickel, Ni–Cu–Ni or gold plating for enhanced corrosion resistance
– CNC-ground pole faces for uniform field distribution
• Packaging & Handling
– Individually foam-wrapped or tray-packed to prevent chipping
– Supplied with magnetic warning labels and handling instructions
– Custom bulk, blister or tray packaging available
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