Cyl Neodymium N36 2,85x4mm Ni NPM
Artno: 43-0316-10
| Magnet properties | |
|---|---|
| Magnet type | Cylinder |
| Material | Neodymium |
| Coating | NiCuNi |
| Magn. direction | Axial |
| Weight [grams] | 0.21 |
| Outer ØD [mm] | 3 |
| Tolerance outer ØD [mm] | -0.2 |
| Thickness [mm] | 4 |
| Magnet data | |
| Energy grade | N36 |
| Max temp. [°C] | 80 |
| Remanence Br [kGauss] | 12.1 - 12.3 |
| Remanence Br [Tesla] | 1.21 - 1.23 |
| Coercivity HcB [kOe / kA/m] | 11.0 / ≥875 |
| Coercivity HcJ [kOe / kA/m] | 12 / ≥955 |
| Energy product (BH)max [kJ/m3 / MGOe] | 280 - 298 / 35 - 37 |
Description
NPM stands for North Pole Marked.
This means that the side that is north has a marking, most commonly a dot or a line from a red marking pen.
If the manget is SPM, it means that the south side has a marking. Most often in the form of a dot or a line in blue.
A marking makes it easier for assembly jobs that require you to always mount the magenta in the same direction.
This could be if the magnet is to work against a sensor or if the magnet is to be mounted in a magnet system.
There are other ways to identify the north and south side of a magnet. This can be done with, for example, a pole-pen.
You can easily search for this tool or you can find it under Measure & demagnetizing equipment.
For complete information about Neodymium (aswell as the other magnet materials), see our Magnet facts page.