Permanent NdFeB Neodymium Ring Magnet with Countersunk Hole

Key features include tight dimensional tolerances for consistent assembly, superior corrosion resistance through advanced surface treatments, and exceptional thermal stability up to 220°C—making them suitable for demanding environments where standard ferrite or alnico magnets fall short. With production capacity exceeding half a million pieces monthly, this supplier ensures rapid turnaround times and competitive pricing—up to 10% lower than market averages due to in-house raw material processing.

Manufactured using state-of-the-art sintering techniques, these permanent magnets exhibit high coercivity and remanence, crucial for maximizing motor efficiency and minimizing energy loss. Available in various shapes including discs, blocks, rings, segments, and custom geometries tailored to specific motor designs, the NH-0004 series supports both standard and non-standard configurations. Whether you're sourcing for small-scale prototypes or mass production, the factory accommodates OEM requests with flexibility in grade selection, coating type, and tolerance control.

These magnets are widely used in brushless DC motors, servo drives, automotive sensors, wind turbines, medical devices, and robotics systems where compact size, strong magnetic flux, and long-term reliability are essential. Their countersunk design allows for direct mounting without additional fasteners, simplifying integration into mechanical assemblies while maintaining structural integrity under vibration and thermal stress.

Customers consistently praise the product’s consistency, especially when compared to competitors offering less precise manufacturing standards. One engineer noted: “The tight tolerance on each Magnet ensures uniform rotor alignment in our motor builds—no more trial-and-error adjustments.” Another user highlighted the value proposition: “For the same specs, we found better pricing elsewhere but none offered such customization options.”