When you want to buy super strong rare earth permanent magnets, NdFeB magnets are undoubtedly your first choice.

The properties of NdFeB vary according to the working temperature, magnetic energy product, Br, coercivity and there are numerous different grades to choose from, from N35 to N52, from N50M to N48H, from N42SH to N40UH and so on.

Faced with so many different properties, are you struggling to know which one to choose? N35 vs N52 magnets, which one is better? Now let’s learn about the properties of various NdFeB materials!

Take N52 as an example.


N52 is one magnet grade. The “N” stands for “Neodymium”, which is a rare earth magnet known for its strong strength, and its maximum working temperature is 60℃. The number “52” represents the maximum energy product (BHmax), and the unit is MGOe (Mega Gauss Oersteds), which is a standard to measure its magnetic strength.


Regarding n35 magnet strength & n52 magnet strength, of course compared with low-grade N35 magnets, the magnetic strength of N52 magnets is significantly higher, including magnetic field and pulling force. The specific strength of N52 magnets may vary depending on their size and shape, but in general, they are capable of exerting a force several times their weight.

N52 magnet was once the strongest magnet material. But now magnet manufacturers are able to offer a higher performance N55.

However, given the price/performance ratio, the N52 is still the most popular choice among end customers. Check the data on the right from KJ MAGNETICS.


When it comes to comparing N35 and N52 magnets, it’s important to understand that both are grades or classifications of neodymium magnets. The grade of a magnet refers to its maximum energy product, which is a measure of its strength.

Both grades are fine if used at room temperature. However, the maximum operating temperature of N35 is 80 degrees Celsius, and that of N52 is 60 degrees Celsius. Therefore, in a higher temperature environment, the two grades will not work.

N52 magnets have a higher maximum energy product compared to N35 magnets, which means they are generally stronger. They can generate a stronger magnetic field and exert more attractive or repulsive force than N35 magnets. So, if you require a magnet with high magnetic strength, N52 would be the better choice.

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However, there are other factors to consider as well. N52 magnets are typically more expensive than N35 magnets due to their increased strength. They may also be more brittle and prone to chipping or breaking compared to N35 magnets, which can be a concern in certain applications.

Ultimately, the choice between N35 and N52 magnets depends on your specific needs and budget. If you require a magnet with the highest possible magnetic strength and are willing to pay a premium for it, N52 magnets would be the better option. However, if the strength of the magnet is not a critical factor or if cost and durability are important considerations, N35 magnets could be a suitable choice.

Or if you are really not sure which performance you want, you can choose a common grade such as N42 as a compromise to test on your product.

Please feel free to contact us at any time, we are happy to provide professional and reliable advice on your magnet selection.


A good reputation is the cornerstone of the long-term development of an enterprise. In order to provide each customer with high-quality NdFeB materials, we start from the following points:

  • Supply chain management: establish a stable and reliable supply chain network, and select suppliers with good reputation and reliable quality. And establish a long-term cooperative relationship with them to ensure that the materials provided comply with relevant international standards and norms.
  • Strict quality control: implement strict quality control measures, including the whole process control from raw material procurement to finished product delivery. Material inspection, in-process monitoring and final product testing are carried out to ensure that the quality and specifications of the material meet the requirements.
  • Compliance and Certification: ensure that the supplied materials comply with relevant regulations and standards. For example, international standards such as ISO 9001 for the magnet industry ensure that the company’s production and quality management systems comply with internationally recognized standards.
  • Document Available: will provide customers with demagnetization curve charts before shipping.
  • Customer feedback and satisfaction survey: maintain close communication with customers, obtain customer feedback and needs in a timely manner, and take corresponding measures to improve customer experience.
  • Quality assurance and after-sales service: To provide customers with quality assurance and after-sales service. Ensure that material quality problems can be dealt with and resolved in a timely manner, and provide timely technical support and consulting services.
  • Continuous improvement: establish a continuous improvement culture and process, and continuously optimize the production and service process. Improve material quality and production efficiency by introducing new technologies, improving processes, and training employees.


Operating temperature is the first consideration. Because the temperature is too high will cause the magnet to lose its magnetism.

Second, the required magnetic field or pulling force.

Another factor to consider is the size and shape of the magnet. If the shape is too complicated, it will increase the processing difficulty.

Also, you should consider the corrosion resistance of the magnet. If the magnets are to be used in wet, acidic or corrosive environments, suitable protective measures such as coating or wrapping need to be selected.

Finally, cost is also an important consideration. The price of NdFeB magnets with different sizes, shapes and performances varies greatly. You need to balance the performance and cost of the magnet according to your budget and application needs, and choose the option that suits you best.


China Magnets Source Material Limited provide super strong neodymium magnets in ring, disc, block, arc and other custom shapes. From industrial magnets to pot magnets, we can custom according to your requirement. Our strong industrial magnets are used in a variety of industries, such as motor, accelerator, actuators, sensors and different tools. The strong pot magnets can be used for magnet fishing. Our dipole and hexapole neodymium magnet array can be used for experiment research.

Do you need neodymium magnets? We’d love to provide strong neodymium magnet price for your reference, email us, we are ready to serve you.

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