Magnet properties | |
---|---|
Magnet type | Cylinder |
Material | Neodymium |
Coating | NiCuNi |
Magn. direction | Axial |
Weight [grams] | 0.56 |
Outer ØD [mm] | 8 |
Thickness [mm] | 1.5 |
Magnet data | |
Energy grade | N35H |
Temp. grade | H |
Max temp. [°C] | 120 |
Remanence Br [kGauss] | 11.7 - 12.2 |
Remanence Br [Tesla] | 1.17 - 1.22 |
Coercivity HcB [kOe / kA/m] | 10.9 / ≥868 |
Coercivity HcJ [kOe / kA/m] | 17 / ≥1353 |
Energy product (BH)max [kJ/m3 / MGOe] | 263 - 287 / 33 - 36 |
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.