Widely Used Industry Segment Neodymiun Magnet

The neodymium iron boron ring magnet offered here is designed for power-related assemblies where compact size and strong magnetic fields are required. Its annular shape makes it suitable for integration into rotors, stators, or other rotating components in electric motors, generators, and power equipment.

Engineers often specify this type of magnet when they need a balance between magnetic strength, mechanical tolerance, and consistent performance over repeated cycles. Compared with simple block or disc magnets, a ring magnet concentrates magnetic flux and simplifies mechanical assembly in cylindrical systems.

• Material: Sintered Nd–Fe–B (neodymium iron boron)
• Magnetic Grades: N35–N52 for different field strength and temperature ranges
• Shape: Ring / toroid - outer diameter, inner diameter, thickness per design
• Magnetization: Axial or radial, depending on rotor/stator layout
• Coating: Nickel-copper-nickel standard; epoxy or zinc coatings optional
• Temperature Capability: Standard grades up to ~80 °C; high-temperature grades available

Because NdFeB offers one of the highest energy products among permanent magnets, even moderate ring sizes deliver substantial field strength, reducing assembly size.

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• Rotors: Radially magnetized ring magnets in brushless and synchronous motors
• Stators: Axially magnetized rings for uniform field distribution
• Air Gap Control: Maintaining tight tolerances ensures consistent torque and performance

Common applications include industrial motors, generators, automotive auxiliary motors, renewable energy drives, and robotic systems. These magnets provide predictable magnetic performance and reliability across production batches.

We handle bulk orders and OEM projects. Options include:

• Custom outer/inner diameters and thickness
• Specific magnetization directions and multi-pole designs
• Coatings for humidity, vibration, or corrosion resistance
• Batch labeling and documentation for traceability

Samples are available to verify fit and performance before larger bulk orders.

Each batch includes:

• Dimensional inspection
• Magnetic flux and coercivity measurement
• Coating quality verification
• Batch traceability records

These controls ensure that every ring magnet meets industrial standards for consistent performance.

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