SM-03152032 Powerful disc Neodymium Ndfeb Magnet coated NiCuNi
Features
Exceptional Magnetic Strength
NdFeB magnets generate significantly higher magnetic fields compared to ferrite or alnico magnets. Grades like N42, N48, and N52 provide strong pull forces, enabling miniaturization of devices without compromising performance. For example, a small N52 disc magnet (e.g., 10 mm diameter × 3 mm thickness) can exhibit a pull force exceeding 2 kg under optimal conditions.
NiCuNi Coating Benefits
Corrosion Resistance: The triple-layer NiCuNi coating (nickel-copper-nickel) offers superior protection against humidity, salts, and chemicals compared to single-layer zinc or nickel coatings. This makes the magnets suitable for outdoor or marine environments.
Thermal Stability: The coating withstands operating temperatures up to 200°C (depending on the NdFeB grade), ensuring reliability in high-temperature applications like automotive motors or industrial machinery.
Surface Durability: The copper intermediate layer reduces the risk of coating cracking during thermal cycling or mechanical stress, extending the magnet’s lifespan.
Aesthetic Appeal: The shiny nickel outer layer provides a uniform, metallic finish, enhancing visual appeal in consumer products like jewelry or smartphones.
Customizable Dimensions and Grades
Disc magnets are manufactured in diameters ranging from 1 mm to 100 mm and thicknesses from 0.5 mm to 20 mm, with tolerances as tight as ±0.05 mm. Grades such as N35 (standard), N42 (high-energy), and N52 (ultra-high-energy) cater to diverse performance requirements. High-temperature grades (e.g., N42SH, N48UH) are available for applications demanding stability beyond 150°C.
Versatile Applications
Electric Motors: Used in rotor assemblies of brushless DC motors, servo motors, and traction motors for electric vehicles (EVs) due to their high coercivity and energy density.
Industrial Systems: Employed in magnetic separators, sensors, and holding devices requiring reliable magnetic fields.
Medical Devices: Utilized in MRI machines and magnetic therapy tools for their precision and biocompatibility.
Cost-Effectiveness
Despite their premium performance, NiCuNi-coated NdFeB disc magnets are cost-competitive for high-volume production. Advances in manufacturing processes (e.g., sintering and machining) have reduced production costs, while the magnets’ long lifespan minimizes replacement expenses.
Conclusion
Powerful disc neodymium magnets coated with NiCuNi combine unmatched magnetic strength with robust corrosion resistance and thermal stability, making them indispensable in modern technology. Their versatility, customizability, and cost-efficiency ensure their dominance in applications ranging from consumer electronics to industrial automation and renewable energy systems. As demand for compact, high-performance magnets grows, NiCuNi-coated NdFeB disc magnets remain at the forefront of innovation, driving advancements in efficiency and reliability across industries.
Product Details
Introduction
Powerful disc neodymium (NdFeB) magnets coated with NiCuNi (nickel-copper-nickel) are high-performance permanent magnets renowned for their exceptional magnetic strength and durability. NdFeB magnets, composed of neodymium, iron, and boron, represent the strongest type of commercially available permanent magnets, offering magnetic energy products up to 53 MGOe in advanced grades like N52. These disc-shaped magnets are widely used in applications requiring compact, high-efficiency magnetic components, such as electric motors, generators, sensors, and consumer electronics. The NiCuNi coating enhances their corrosion resistance, thermal stability, and aesthetic appeal, making them suitable for both industrial and consumer-grade products.