N54 Neodymium Magnets
Wholesale supply of N54 neodymium magnets
N54 neodymium magnets are the industrial grade of NdFeB magnets with the highest magnetic energy product ((BH)max) currently available for mass production. According to the Chinese national standard (BG/T 13560-2017, Sintered NdFeB permanent magnets), N54 has the highest maximum energy product ((BH)max) of 51 to 55 MGOe and remanence (Br) of 1.45 to 14.9 kG. Since there is no unified standard internationally, manufacturers and customers in some regions also use “N55 neodymium magnets” as the name.
Definition of N54 magnet.
I know that some customers are not very good at reading the “performance ID card” of magnets. Usually the grade of magnets is written in the format of:
“First letter + number + suffix letter”
- First letter: indicates the material of the magnet, for example: “N” stands for neodymium, “C” stands for ceramic, and “SmCo” stands for samarium cobalt.
- Number: indicates the strength of the magnet, usually the maximum magnetic energy product of the magnet ((BH)max), expressed in MGOe.
- Suffix letter: indicates the maximum operating temperature that the magnet can withstand before demagnetization occurs. For example: M/H/SH/UH/EH/AH.
It can be seen that N54 represents a permanent magnet produced by neodymium iron boron material with a maximum magnetic energy product of 54MGOe.
| Comparison of N54 vs. N35 to N52 Neodymium Magnets | ||||||||
|---|---|---|---|---|---|---|---|---|
| Grade | Remanence (Br) | Residual Coercivity (Hcb) | Intrinsic Coercivity(Hcj) | BH max | ||||
| kGs | T | kOe | kA/m | kOe | kA/m | MGOe | KJ/m³ | |
| N35 | 11.7-12.2 | 1.17-1.22 | ≥10.9 | ≥868 | ≥12 | ≥955 | 33-36 | 263-287 |
| N38 | 12.2-12.5 | 1.22-1.25 | ≥11.3 | ≥899 | ≥12 | ≥955 | 36-39 | 287-310 |
| N40 | 12.5-12.8 | 1.25-1.28 | ≥11.4 | ≥907 | ≥12 | ≥955 | 38-41 | 302-326 |
| N42 | 12.8-13.2 | 1.28-1.32 | ≥11.5 | ≥915 | ≥12 | ≥955 | 40-43 | 318-342 |
| N45 | 13.2-13.8 | 1.32-1.38 | ≥11.6 | ≥923 | ≥12 | ≥955 | 43-46 | 342-366 |
| N48 | 13.8-14.2 | 1.38-1.42 | ≥11.6 | ≥923 | ≥12 | ≥955 | 45-49 | 358-390 |
| N50 | 14.0-14.5 | 1.40-1.45 | ≥12.0 | ≥955 | ≥12 | ≥955 | 47-51 | 374-406 |
| N52 | 14.2-14.6 | 1.42-1.46 | ≥12.0 | ≥955 | ≥12 | ≥955 | 49-53 | 390-422 |
| N54 | 14.5-14.9 | 1.45-1.49 | ≥10.5 | ≥876 | ≥11 | ≥955 | 51-55 | 406-438 |
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Characteristics of N54 Neodymium Magnets.
Advantages ------
Although N54 is not as widely used as N52 Neodymium Magnets, its higher magnetic density makes it the first choice for demanding applications that N52 Neodymium Magnets cannot meet.
- The Strongest Permanent Magnets: N54 has higher Br and BH values, and the maximum magnetic energy product is up to 7% stronger than the mainstream N52 grade magnets.
- Excellent Temperature Resistance: N54 magnets can operate at temperatures up to “SH” grade, with a maximum operating temperature of up to 150°C for a short period of time, reducing performance degradation.
- Compact Size: N54 magnets have high flux density, which allows for very compact magnetic assemblies. It can achieve excellent performance output while occupying minimal space.
- High Hardness: N54, like N52, has a high hardness and is easy to machine, which is why N54 and N52 are both the main processing materials for micromagnets.
Disadvantages ------
- Slightly lower intrinsic coercivity: Although the remanent coercivity of N54 neodymium magnets is consistent with that of N52, its intrinsic coercivity is lower than that of other N series products. This also means that its anti-demagnetization ability will be slightly lower. It is not suitable for use in magnetic assemblies (such as Halbach arrays).
- N54 magnets are more expensive per unit: In order to increase Br, N54 uses Nd instead of PrNd. As we all know, Nd is more expensive than PrNd. This also makes N54 slightly more expensive per unit than N52.
Applications of N54 magnets.
Magnetic separation equipment
In automated magnetic separation equipment lines, N54 magnets can efficiently separate weakly magnetic materials. Widely used in magnetic separation industries such as special minerals (such as hematite, ilmenite, wolframite, etc.), drug purification and food filtration.
Magnetic sensors
In precision sensors for industrial automation, N54 magnets provide a stable magnetic field to ensure accurate detection of every tiny change and achieve ultra-sensitive Hall effect in small spaces.
Electric motors
In high-performance electric motors, rotors made of N54 neodymium magnets combined with concentrated windings provide strong torque output and stability for the motor. Widely used in power tools, aerospace, robotics and industrial automation equipment.
Medical equipment
In MRI scanners and other medical devices, the strong and stable magnetic field of N54 magnets can scan and detect accurately and quickly, helping doctors obtain clear and accurate images and improve the accuracy of diagnosis.
N54 Neodymium Magnets purchase guide
Higher energy product material is typically stronger than lower energy product material, but there may be other factors to consider.
When choosing material grade customers should consider:
- Operating temperature
- Magnet geometry
- Application requirements
- Cost and value
Where to get n54+ neodymium magnets
Contact a manufacturer that can produce N54 magnets and place an order. Because it is difficult to buy from local magnet stores. The reasons are as follows:
1. Not many customers know about N54 grades.
2. Their performance is not much different from N52. If there is no strong requirement for size, customers often choose to make the size larger to get a greater magnetic field strength. But if the size is limited, customers can only increase the magnet grade to increase the magnetic field strength.
3. There are not many manufacturers that can produce N54. Many magnet stores will not develop new suppliers for a few small retail orders.
If you want to buy N54 neodymium magnets, don’t hesitate to contact us.