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 Magnet Buying Guide.
Materials with higher energy products are generally stronger than materials with lower energy products, so N54 magnets belong to the top echelon of commercial neodymium magnets. However, before actual purchase, it is necessary to comprehensively evaluate the choice based on: actual operating temperature, actual application, magnet shape design and cost.
- Operating temperature:Don’t ignore the operating temperature in actual application. N54 magnets usually perform well at temperatures up to 80°C. If you plan to use them in high-temperature environments (such as motors, automotive applications, or industrial machinery), remember that the highest grade, N54SH, can only operate at temperatures of 150°C. Otherwise, demagnetization and performance degradation may occur.
- Application requirements:Match the magnet to the task. Think about what you want to achieve with the N54 magnet.
- Magnet size and shape:The shape and size of the magnet can determine its efficiency in the application. The shape and size need to be customized according to the needs of your machine, equipment or magnetic assembly.
- Cost:Although N54 magnets are certainly more expensive than lower-grade magnets, their higher strength and longer service life in a small size can prove how wise your choice is under specific needs. If the size is not too stringent, it is recommended to use larger size N52 neodymium magnets to achieve a higher cost performance.
Where to get n54+ neodymium magnets?
Once you’ve made up your mind to purchase N54 neodymium magnets, you’ll find that your local regular retail store is unlikely to have this specialized high-performance magnet. Here’s why:
- Not many people know the N54 level.
- The performance is not much different from N52. If there is no strong requirement for size, customers often choose to make the size larger to obtain greater magnetic field strength. But if the size is limited, customers can only increase the magnet grade to increase the magnetic field strength.
- Not many manufacturers can produce N54. Many magnet stores will not develop new suppliers just for a few small retail orders.
- They are designed for special industrial, manufacturing or high-tech applications.
So, where to buy N54 neodymium magnets for your specific needs? The best way is to contact reliable source suppliers directly. Buying directly from the source not only gets accurate product specifications, but also saves costs through economies of scale.
Of course, when choosing an N54 magnet manufacturer, it is important to keep in mind some key points:
- Reputation and Experience:It is imperative to choose a reputed supplier with years of experience in magnet manufacturing. Manufacturers with a proven track record with N54 magnets ensure that we get a high-quality, durable product.
- Customization Options:N54 magnets are often used for specific applications, so support for custom shapes, sizes, and coatings is essential.
- Delivery Time:Order timeliness is important. Ensuring that the manufacturer can deliver the project on time ensures follow-up progress.
We know that it is not easy to find a reliable N54 neodymium magnet supplier. Therefore, we focus on building a strong and trusting relationship with our customers, providing reliable magnetic products and unparalleled customer support. Let us be your trusted supplier – contact us today to discuss your needs and we’ll guide you to the perfect N54 magnet for your project