Neodymium discs are strong magnets and are very useful for hanging or holding circular or disc shaped metal objects as well as a wide range of other magnetic applications.
Rare earth neodymium magnets, also known as NdFeB magnets or Neo magnets, are made from an alloy of neodymium, iron and boron. They have excellent magnetic properties and are extremely strong for their small size. Neodymium magnets are permanent, and have a high maximum magnetic energy.
The “N” number (like N35, N42) indicates the maximum energy product (BH_max) of the magnet, which is basically a measure of how strong the magnet is per unit volume. Higher numbers = stronger magnets
PRODUCT SPECIFICATIONS:
| Material: |
Neodymium Magnets (NdFeB) |
| Dimensions: |
20mm diameter x 5mm thick. |
| Shape: |
Disc / Round |
| QTY: |
01 Pcs |
| Coating: |
Ni-Cu-Ni (Nickel) |
| Grading: |
N42H |
| Tolerance: |
+/- 0.1 |
| Maximum temperature: |
N42H grading magnets can work in an environment that has a maximum operating temperature no greater than 120°C |
| Pulling Force: |
7.43kg |
| Colour: |
Silver |
| Direction of Magnetism: |
Through the thickness. |
Image: Direction of magnetism
Pros and cons:
Pros:
-Best power to weight ratio of all magnets.
-High resistance to demagnetization. |
|
Cons:
-Magnetism starts to decrease (and can be permanently lost) at 80°C.
-Low corrosion resistance. (If the plating is damaged)
-Will rust when exposed to wet elements.
-Brittle (May break, crack, or chip upon sudden collisions with other magnets or metals.)
-Drilling magnets causes magnet to shatter. (Do not drill magnets as friction can cause fire / explosion due to flammable material.)
-Often higher cost choice.
|
Applications of Neodymium Magnet:
Acoustic field: the speaker, receiver, microphone, alarm, stage audio, car audio etc.
|
| Electronics: permanent magnetic actuator vacuum circuit breakers, magnetic relays, meter sound meter, a reed switch, sensors. |
| Machinery and equipment: magnetic separation, magnetic crane, magnetic machinery. |
| Other industries: magnetized Wax, pipe descaling, magnetic fixture, automatic mah-jong machine, magnetic locks, doors and for windows magnetic, magnetic luggage, leather magnetic toys, magnetic tools, gifts, craft project, |
This product was added to our catalog on Saturday 30 September, 2023.
