SKU 9536 is a high-force N52 neodymium disk magnet measuring 40 mm × 20 mm. Its relatively thick geometry provides much more magnetic volume than a thin disk, making it suitable for applications where high contact force, strong field output and a substantial pole face are required.
| Magnet Size: |
40 mm × 20 mm |
| Tolerances: |
±0.004" |
| Material: |
Rare Earth NdFeB |
| Grade of Neodymium: |
N52 |
| Plating/Coating: |
Ni-Cu-Ni |
| Br (typical): |
14,500 Gauss |
| BHmax (typical): |
51 MGOe |
| Max Temperature: |
60°C / 140°F |
| Magnetization Direction: |
Axial |
| Surface Gauss: |
5,124.18 Gauss |
| Pull Force: |
134.02 lb |
| Imperial Size: |
1.575" × 0.787" |
40mm × 20mm N52 Disk Design Notes
This part has a much more favorable thickness-to-diameter ratio than a very thin disk, which can support strong contact force and field output in a well-designed magnetic circuit. The final application still depends on air gap, target steel, geometry, temperature and load direction.
The listed 134.02 lb pull-force value should be treated as a comparison/test value under defined contact conditions, not as a universal safe working load. Paint, coatings, adhesive layers, thin or saturated steel, uneven contact, curvature and shear loading can materially reduce usable force.
Bulk & OEM 40mm × 20mm N52 Magnets
For recurring production demand, bulk 40 mm × 20 mm requirements, alternate coatings, tighter tolerances or different magnetization specifications, use the Magnet RFQ Builder and include annual volume, target operating temperature, working air gap and application details.
Use the Magnet Pull Force Calculator for preliminary magnet-to-steel screening and the Temperature Derating Calculator if elevated temperature is part of the application.
Browse all neodymium disk & rod magnets, compare N52 stock, or use the Magnet RFQ Builder for custom geometry, coating, tolerance or magnetization requirements.
