Neodymium Disc Strong Magnet
Neodymium disc magnets, often referred to as NdFeB magnets, are made from an alloy of neodymium, iron, and boron. ,
These powerful magnets have gained popularity across various industries due to their unmatched strength, durability,,
and compact size. In this article,
Description
Neodymium disc magnets, often referred to as NdFeB magnets, are made from an alloy of neodymium, iron, and boron. These powerful magnets have gained popularity across various industries due to their unmatched strength, durability, and compact size. In this article, we'll delve into the key features and performance attributes of neodymium disc strong magnets, ideal for applications where high magnetic force is required
Key Features of Disc Magnet
1. Exceptional Magnetic Strength
Huge Neodymium magnets are known for being the strongest type of permanent magnets available on the market. Despite their small size, they can exert significant pulling forces, which makes them suitable for applications where space is limited but high magnetic performance is needed.
Magnetic Grades: Neodymium magnets are graded by their maximum energy product, typically ranging from N35 to N52, where a higher number indicates a stronger magnet.
Pull Force: A neodymium disc can have a pull force exceeding 10 kg (22 lbs) depending on its size and grade, far surpassing ferrite or ceramic magnets.
2. Compact and Lightweight Design
Despite their strength, neodymium disc magnets are incredibly lightweight and compact, allowing them to be used in designs where space constraints are a concern. Their small size means they can be integrated seamlessly into various applications without adding unnecessary weight.
3. High Resistance to Demagnetization
Unlike many other types of magnets, disc magnets exhibit high resistance to demagnetization. Even in intense magnetic fields, they maintain their strength, making them ideal for long-term use in applications requiring stable magnetic performance.
4. Customizable Shapes and Sizes
Neodymium magnets are available in a variety of sizes and can be custom-made to meet specific needs. From miniature magnets for electronics to larger discs for industrial use, these magnets are adaptable to a range of applications. Standard sizes typically range from 2 mm to 50 mm in diameter, with thicknesses varying depending on the application.
Disc shape strong magnet, thin thickness
Disk shape magnets with thick height
Arc/segment shape magnets, welcome to custom
Special shaped magnet, Custom it
5. Coating and Corrosion Resistance
To ensure durability, strong magnets are often coated with protective materials like nickel, zinc, or epoxy. This helps to prevent corrosion and mechanical wear, ensuring the magnets last longer in various environments, including outdoor and humid conditions.
Some data for different Grade magnets for reference
| Grade | Br mt(KG) | Hcb Koe(KA/m) | iHc Koe(KA/m) | (BH)max KJ/m3 (MGOe) | TW℃ |
| N35 | 1170-1210(11.7-12.1) | ≧10.8(≧860) | ≧12(≧955) | 263-287(33-36) | 80 |
| N38 | 1210-1250(12.1-12.5) | ≧10.8(≧860) | ≧12(≧955) | 287-310(36-39) | 80 |
| N40 | 1250-1280(12.5-12.8) | ≧11.6(≧923) | ≧12(≧955) | 302-326(38-41) | 80 |
| 35H | 1170-1210(11.7-12.1) | ≧11.0(≧876) | ≧17(≧1353) | 263-287(33-36) | 120 |
| 38H | 1210-1250(12.1-12.5) | ≧11.2(≧890) | ≧17(≧1353) | 287-310(36-39) | 120 |
| 40H | 1250-1280(12.5-12.8) | ≧11.5(≧915) | ≧17(≧1353) | 302-326(38-41) | 120 |
| 35SH | 1170-1210(11.7-12.1) | ≧11.0(≧876) | ≧21(≧1672) | 263-287(33-36) | 150 |
| 38SH | 1210-1250(12.1-12.5) | ≧11.4(≧907) | ≧21(≧1672) | 287-310(36-39) | 150 |
| 40SH | 1250-1280(13.2-13.8) | ≧11.8(≧939) | ≧21(≧1672) | 302-326(38-41) | 150 |
| 33EH | 1130-1170(11.3-11.7) | ≧10.2(≧812) | ≧30(≧2388) | 247-263(31-33) | 200 |
| 35EH | 1170-1210(11.7-12.1) | ≧10.2(≧812) | ≧30(≧2388) | 263-287(33-36) | 200 |
Versatile Applications of neodymium disc strong magnet
- Motos: In industrial settings, they are commonly found in motors, generators, and sensors. These magnets are essential in electric motors for electric vehicles (EVs) and other machinery, providing high torque and efficiency in a small form factor.
- Magnetic Separator: they help extract metal particles from materials
- Medical Devices: they are utilized in magnetic therapy devices, headphones, and speakers for their ability to produce a strong, focused magnetic field
- Magnetic closures for bags and cabinets
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