Description
HS Magnet’s Alnico 5 LNG40 block magnet (45 × 45 × 22 mm) delivers stable flux, excellent thermal performance and precision dimensions for demanding magnetic assemblies. Manufactured from premium Alnico 5 alloy and CNC-ground on all faces, this compact block magnet ensures repeatable results in industrial, scientific and audio-related applications.
Key Features
Magnetic Properties
- Grade: Alnico 5 (LNG40)
- Remanence (Br): ≈ 1.20 – 1.30 T
- Maximum energy product (BHₘₐₓ): ≈ 5.8 MGOe
- Coercivity (Hcb): ≈ 45 kA/m
- Temperature coefficient of Br: + 0.02 %/°C
- Maximum operating temperature: 540 °C
Dimensions & Tolerances
- Size: 45.00 × 45.00 × 22.00 mm
- Standard tolerance: ± 0.10 mm (± 0.05 mm available)
- CNC-ground faces ensure flatness, parallelism and squareness
Surface Finish & Coatings
- Natural grey sintered finish
- Optional coatings: nickel, tin or epoxy for corrosion resistance
Packaging & Quality Control
- Individually wrapped in anti-corrosion paper
- Packed in foam-lined trays or polybags to prevent damage
- Full traceability with material certificates and magnetic test reports
- Custom packaging options: blister packs, wooden crates, bulk cartons
Typical Applications
- Position sensors and encoders
- Magnetic pickups and transducers
- Clamping, latching and workholding fixtures
- Actuators, couplings and magnetic assemblies
- Precision jigs, fixtures and laboratory equipment
Why Choose HS Magnet?
- 20+ years of Alnico magnet design & manufacturing expertise
- In-house sintering, CNC machining & coating for full process control
- 100 % inspection of magnetic properties and dimensions
- Flexible MOQs: from single prototypes to high-volume production
- Global shipping with dedicated technical support
Contact us today to customize tolerances, coatings or packaging for your Alnico 5 LNG40 block magnet.
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