Product description
Neodymium magnets are graded according to their maximum energy product, which relates to the magnetic flux output per unit volume. Higher values indicate stronger magnets. For sintered NdFeB magnets, there is a widely recognized international classification. Their values range from 28 up to 52.
The first letter N before the values is short for neodymium, meaning sintered NdFeB magnets. Letters following the values indicate intrinsic coercivity and maximum operating temperatures (positively correlated with the Curie temperature), which range from default (up to 80 °C or 176 °F) to AH (230 °C or 446 °F).
Magnet Specification
| Type | Permanent Powerful Neodymium Magnets | |
| Material | Sintered Neodymium Magnets | |
| Coating | Ni, Zn, Epoxy, Parylene, Gold, Passivated, etc | |
| Shape | Block, Bar, Cube, Disc, Ring, Cylinder, Ball, Arc, Trapezoid, etc | |
| Density | 7.5-7.6 g/cm³ | |
| Delivery date | 7-10 days for common samples, 20-25 days for mass produciton | |
|
Magnetic Grade&Working Temperature |
Magnetic Grade | Working Temperature |
| N35-N45 | 80 ℃（176 ℉） | |
| N48-N52 | 60 ℃（160 ℉） | |
| 35M-50M | 100 ℃（212 ℉） | |
| 33H-48H | 120℃（248 ℉） | |
| 33SH-45SH | 150 ℃（302 ℉） | |
| 30UH-40UH | 180 ℃（356 ℉） | |
| 28EH-38RH | 200℃（392 ℉） | |
| 28AH-33AH | 220 ℃（428 ℉） | |
Magnet Shapes
They have replaced other types of magnets in many applications in modern products that require strong permanent magnets, such as electric motors in cordless tools, hard disk drives and magnetic fasteners.
We can custom manufacture Neodymium magnets to exact specifications using our in-house manufacturing facilities and experienced team of engineers. Contact us or send us a request for quote and we’ll help you determine the most economical solution for your project.
Introducing the strongest magnets available at FinoMag magnets! N52 grade neodymium was the strongest magnetic material commercially available until it was recently surpassed by the marginally stronger N55 grade, which is available upon request. Even the smallest N52 neodymium magnet in our range, 10mm diameter x 2mm thick, has an impressive pull strength of 1.6kg.
Large N52 grade neodymium magnets are so powerful that special care needs to be taken when handling them. Not only are they the some of strongest magnets available, they have an incredible depth of field and can attract each other, or a steel surface through distances of several inches.
What’s the difference between Grade N52 magnet and other magnets?
When we talk about the different grades of magnets we are referring to the level of strength they have in their magnetic field. These grades are classified from the N35 Magnet for example, which are the weakest and most economical. But when it comes to the N52 magnet its composition has 50% more strength than the previous one but its price is also higher for this reason.
Custom Grade N52 Magnet Project
You may find that our product may seem a little small for some of the ideas you have in mind but we must tell you that we are the most versatile N52 magnet manufacturer available. If you would like us to manufacture an custom N52 magnet with special features for you, we will be happy to do it in the shortest possible time.
The small size of the N52 neodymium magnet described above should not confuse you as it has a variety of useful applications. You will be amazed at what you can do with each of the magnets you receive in the package. Sticky notes on the refrigerator so no one forgets their chores or decorate doors, windows and any metal surface with crafts or fabulous works of art. They can be of great use in educational institutions, offices, and other work environments where printed or written announcements must be constantly posted for employees, students, and representatives.
