Golden Supplier Neodymium Magnet 3mm

The 3mm neodymium magnet is a compact NdFeB magnetic component engineered for applications where small form factor and reliable magnetic performance are essential. Neodymium magnets of this size are common in precision instruments, micro-motors, magnetic sensors, and compact magnetic fixtures where space constraints require high energy density.

Rather than generic "mini magnets," this product line is tailored to support engineering use cases that demand dimensional accuracy, consistent magnetic behavior, and traceability between batches - factors that matter in production, quality control, and high-precision assembly.

• Material: Sintered NdFeB (Neodymium Iron Boron)
• Shape: Cylinder, diameter 3mm, length (customizable)
• Magnetization: Axial (standard); custom magnetization directions available
• Grade: Multiple grade options including N35–N52 based on temperature and performance requirements
• Coating: Standard Ni–Cu–Ni plating; options for epoxy or zinc finishes when specified
• Tolerance: Controlled machining tolerances appropriate for precision assemblies
• Temperature Capability: Standard up to ~80 °C; higher temperature grades available on request

NdFeB magnets offer one of the highest energy products among permanent magnets, making them suitable for compact designs that still demand strong field strength.

 

Contact now

This 3mm neodymium magnet is not defined by maximum pull force alone but by predictable field characteristics over repeated assembly cycles:

• High magnetic energy density relative to size
• Repeatable field output supports consistent product performance
• Precision tolerance control simplifies integration into automated assemblies
• Multiple grade options allow adaptation to different thermal environments

In precision products, particularly where stability over time matters, these performance traits simplify design verification and reduce yield variation.

 

 

Small neodymium magnets like these are widely used where compact design meets functional demand:

• Micro-motors and actuators: Flux source in small rotary or linear devices
• Sensors and encoders: Magnetic reference elements in position detection
• Compact fixtures: Hold points in small assemblies, panels, or jigs
• Electronic modules: Components in consumer and industrial electronics
• Magnetic coupling devices: Small magnetic couplers for precision torque transfer

Because magnetic strength is concentrated in a small footprint, these magnets help maintain performance without increasing assembly bulk.

 

We support bulk orders and OEM requirements for production and volume programs. Customization options include:

• Length adjustments for specific stack or gap requirements
• Magnetization direction tuning for sensor or motor orientation
• Coating selection for environmental exposure or handling conditions
• Packaging tailored for production line use or project deployment

Providing design drawings or functional requirements at the enquiry stage helps ensure the right magnet grade, size and coating are selected. Sample quantities are available for fit and performance checks prior to larger bulk orders.

Handle with care to avoid chipping; small NdFeB magnets are brittle.

Ensure correct magnetization orientation in assemblies to prevent field cancellation.

For high-temperature applications, specify appropriate grade and coating early.

Hot Tags: golden supplier neodymium magnet 3mm, manufacturers, suppliers, factory, customized, strong magnets with screw holes, cheap powerful magnets, very strong magnets are, diametrically magnetized ring, neodin magnet, 500 lb fishing magnet