Description
HS Magnet’s Alnico 5 large square magnet (197 × 61 × 44.5 mm) is engineered for heavy-duty industrial and instrumentation applications. Manufactured from high-grade Al–Ni–Co alloy, this block magnet offers outstanding thermal stability, excellent remanence and flexible customization to meet stringent performance requirements.
Key Features
- Material & Performance
• Grade: Alnico 5 (Al–Ni–Co)
• Remanence (Br): ≈ 1.25 T
• Maximum energy product (BHₘₐₓ): 5.5–7.0 MGOe
• Coercivity (Hcj): ≈ 30 kA/m
• Operating temperature up to 540 °C - Dimensions & Tolerances
• Length: 197 mm
• Width: 61 mm
• Thickness: 44.5 mm
• Standard tolerance: ± 0.1 mm (custom ± 0.02 mm available) - Magnetization Options
• Through-thickness (flat faces North/South)
• Edge-pole or radial patterns
• Custom multi-pole segmentation - Surface Finish & Coatings
• Natural Alnico finish
• Optional: epoxy, nickel, zinc or chemical passivation for enhanced corrosion protection - Custom Fabrication
• Precision CNC machining: holes, slots, chamfers, countersinks
• Prototype to high-volume production
• In-house magnetization & assembly






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