Neodymium Magnetic Sphere 25 mm N40
The magnetic sphere made from neodymium (NdFeB) is a small but very strong magnet, produced from a special alloy and magnetised in a high-intensity magnetic field. N40 indicates the magnetic grade. A higher value generally indicates a stronger magnet.
This 25 mm size is useful for DIY, organisation, quick tests and compact DIY projects. It performs best in direct contact with thick steel. Holding force may decrease on thin materials.
Warning: keep away from children. Swallowing magnets poses a serious danger and may require immediate medical intervention. Their strong attraction means they must be brought together and separated carefully to avoid pinching injuries or chipping.
Neodymium Magnetic Ball 25 mm N40
SKU: N25G-N40
HUF 6,390Price
| Shape | Ball |
| Size | 25 mm |
| Diameter | 25 mm |
| Material | NdFeB |
| Magnetic grade | N40 |
| Surface protection | Nickel (Ni-Cu-Ni) |
| Dimensional tolerance | ±0,1 mm |
| Approximate weight | 62,5 g |
| Holding force | 9,7 kg (95,16 N) |
| Maximum operating temperature | 80 °C |
| Magnetisation direction | Axial |
| Remanence Br | 12,6 - 12,9 kGs |
| Coercivity bHc | ≥ 10,8 kOe |
| Intrinsic coercivity iHc | ≥ 12 kOe |
| Maximum energy product BHmax | 38 - 40 MGOe |
