Strong N35 Round Neodymium Magnet with Hole

Powerful N35 Countersunk Round Neodymium Ring Magnet with Hole

The N35 Countersunk Round Neodymium Ring Magnet with Hole is an essential component for engineers, hobbyists, and students across Bangladesh working on precision mechanical assemblies and electronic prototypes. Made from rare-earth Neodymium-Iron-Boron (NdFeB), these high-strength permanent magnets pack immense holding power into a compact form factor. Unlike traditional solid disc magnets, the integrated central hole allows you to easily secure the magnet using standard countersunk screws, rivets, or bolts onto wood, plastic, or metal surfaces. Whether you are building custom mounting fixtures, sensor triggers, or magnetic latches, this versatile component sourced through Biggan Project offers reliable performance for projects of any scale in BD.

Features

• High magnetic energy density delivering exceptional pull force despite compact sizing.
• Central countersunk hole enables flush mounting using standard flat-head screws.
• Permanent magnetization ensures long-term field stability without loss of magnetic power over time.
• Smooth protective triple-layer plating guards against surface oxidation and corrosion in humid BD weather.
• Available in eight distinct dimensions to accommodate diverse mechanical load requirements.

Applications / Use Cases

• Robotics and Automation: Securing quick-release end effectors, covers, and sensor mounts.
• DIY Science Projects: Building contactless switches, magnetic levitation models, and motor demonstrations for Biggan Project kits.
• Home and Workshop Organization: Installing hidden cabinet latches, tool holders, and magnetic doors.
• Electronic Assemblies: Position sensing with Hall-effect sensors in custom hardware setups.

User Guide / How to Use

• Select the correct magnet size and matching countersunk screw according to the central hole diameter.
• Align the magnet onto your target substrate and tighten the screw until the screw head rests flush inside the countersunk recess.
• Avoid over-tightening screws directly against the magnet body, as brittle sintered Neodymium material can fracture under excessive torque.
• When coupling two magnets together, ensure opposite magnetic poles (North and South) face each other for maximum attraction.

Frequently Asked Questions (FAQs)

• Q: What does the N35 grade mean?
  A: N35 indicates the magnet's energy product (35 MGOe), representing standard high-strength commercial Neodymium performance.
• Q: Can I drill or machine this magnet to adjust the hole size?
  A: No, drilling or grinding Neodymium generates heat that degrades magnetism and produces toxic, flammable dust.
• Q: How do I select the right size for my project in Bangladesh?
  A: Measure your mounting screw diameter first; choose 3mm hole models (8x3, 10x3) for M3 screws, 4mm for M4, and 5mm/6mm for M5/M6 fasteners.

Challenges and Considerations

• Sintered NdFeB material is inherently brittle; sharp impacts or snapping magnets together uncontrolled can cause chipping or shattering.
• Exposure to temperatures above 80°C will result in permanent loss of magnetic strength.
• Keep strong magnetic fields away from magnetic storage media, sensitive medical devices, and unshielded electronics.

Compatibility

• Compatible with standard M3, M4, M5, and M6 countersunk screws based on the specific magnet hole dimensions.
• Pairs seamlessly with steel plates, ferromagnetic metals, Hall-effect magnetic sensors, and reed switches.

Future Enhancement Options

• Integration into 3D-printed enclosures using recessed screw mounts for modular mechanical joints.
• Combining with electromagnetic coils to create custom linear actuators or releasable magnetic clamps.

Benefits

• Provides strong, reliable mechanical fastening without the need for messy adhesives or permanent glues.
• Allows quick assembly and disassembly of prototyping modules and robot chassis parts.
• Delivers superior holding strength compared to conventional ferrite or rubber magnets of identical size.

Conclusion

The N35 Countersunk Round Neodymium Ring Magnet with Hole combines extreme magnetic pull force with practical screw-mount installation. Ideal for makers, educators, and industrial designers across BD, this versatile component provides clean, reliable, and reusable fastening solutions for modern electronics, robotics, and workshop projects available through Biggan Project.

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