Technomag Inc. manufactures Sintered Neodymium-Iron-Boron magnets in various sizes and specifications. We meet the highest quality standards set by MMPA (Magnetic Materials Producers Association).
Applications
Sintered Neodymium-Iron-Boron (NdFeB) magnets are powerful permanent magnets widely used across industries that demand high magnetic strength in compact sizes. They play a critical role in electric motors and generators for electric vehicles, wind turbines, aerospace, and robotics, while also being essential in consumer electronics such as speakers, headphones, hard disk drives, and smartphones. In the medical field, they are used in MRI machines, diagnostic equipment, and surgical tools, and in industrial applications they enable magnetic separation, lifting, and precision sensing.
Key Features
- Material Composition: Neodymium, iron, and boron alloy with minor additives (e.g., dysprosium, praseodymium) for enhanced performance.
- Manufacturing Methods: Powder metallurgy process involving pressing, sintering, machining, and coating.
- Magnetic Strength: Highest among all permanent magnets, offering very high energy product (BHmax).
- Shapes & Complexity: Limited to simpler geometries; complex shapes require machining.
- Mechanical Properties: Hard and brittle; prone to chipping and cracking, requiring careful handling.
- Magnetic Orientation: Typically anisotropic, achieved during pressing in a magnetic field for maximum performance.
- Surface Protection: Requires coatings (nickel, epoxy, zinc, aluminum chromate, phosphor etc.) to prevent corrosion.