Permanent Neodymium Magnet, diameter 30 mm, inner hole 8.5 mm, pull 27 N, max temp 80°C

Compact permanent neodymium magnet with a 30 mm outer diameter and an 8.5 mm central hole designed for applications that require a small, strong magnetic fastening element. The magnet provides an approximate pull force of 27 N and can operate at temperatures up to 80°C. Its size and through-hole make it suitable for mechanical mounting with a screw or bolt, or for use in fixtures where a centered attachment point is needed. Corrosion protection and specific mounting behavior depend on the magnet's coating and the chosen installation method.

Advantages

The neodymium composition offers a high magnetic strength relative to its compact size, delivering reliable holding and positioning with a pull force around 27 N. The central 8.5 mm hole enables straightforward mechanical fastening and alignment with standard screws or bolts. A maximum operating temperature of 80°C allows use in typical indoor industrial, workshop, and DIY environments without rapid loss of magnetic performance. The geometry — flat circular shape with a through-hole — simplifies integration into assemblies where a centered attachment or passage for hardware is required.

Suitable for

• Holding small metal parts and tools in workshops or production lines
• Positioning sensors, fixtures and jigs where a compact magnetic mount is needed
• Fastening panels, signs or lightweight components with a centered mounting point
• DIY projects and hobby applications requiring a strong small magnet

Key specifications

• Outer diameter: 30 mm
• Central hole diameter: 8.5 mm
• Approximate pull force: 27 N
• Maximum continuous operating temperature: 80°C
• Shape: ring / flat with through-hole

How to use

Mount the magnet by passing an appropriate screw or bolt through the central hole and tightening into the supporting structure, ensuring the head and fastener material provide secure seating without crushing the magnet. For adhesion to flat metal surfaces, position the magnet with its magnetic face against the target area and verify holding strength before applying load. Avoid mechanical shock or impacts that could chip the brittle neodymium material. When installing near electronic devices or magnetic sensors, maintain required clearances to prevent interference.

Usage recommendations

Store and use the magnet below its maximum operating temperature of 80°C and avoid exposure to corrosive environments unless an appropriate coating is specified. When fastening with screws, select stainless or coated fasteners if corrosion resistance is needed. Keep out of reach of children and avoid bringing strong magnets close to credit cards, pacemakers, or sensitive electronic media.