Round Neodymium Disc Magnet 6 x 3mm

The 6 x 3mm N42 Neodymium Disc Magnet is a compact, high-strength rare earth permanent magnet designed for applications requiring reliable magnetic holding force in a small space. Manufactured from high-performance Neodymium Iron Boron (NdFeB), this round magnet offers excellent magnetic strength, making it ideal for electronics, sensors, magnetic closures, DIY projects and precision applications.

With a 6mm diameter, 3mm thickness and a rated pulling force of 893g, this N42 grade neodymium magnet delivers impressive holding strength relative to its size. Its compact disc design makes it particularly suitable for applications where installation space is limited but a strong magnetic connection is required.

The magnet features a triple-layer Nickel-Copper-Nickel (Ni-Cu-Ni) coating, providing a smooth silver finish and improved resistance to corrosion under normal indoor conditions. With a maximum operating temperature of 80°C, it is suitable for a wide range of electronic, industrial and hobby applications.

Key Features

• Strong Magnetic Holding Force: Rated pulling force of 893g under ideal testing conditions.

• Compact Disc Design: 6mm diameter x 3mm thickness, ideal for miniature and space-restricted applications.

• N42 Grade Neodymium: High-strength rare earth magnet offering excellent magnetic performance for its size.

• Nickel-Plated Finish: Triple-layer Ni-Cu-Ni coating for improved corrosion resistance and durability.

• Permanent Magnet: Maintains its magnetic properties without requiring an external power source.

• Axial Magnetisation: Magnetic poles are located on the two flat circular faces.

• Maximum Operating Temperature: Suitable for operating temperatures up to 80°C.

• Versatile Applications: Ideal for electronic sensors, magnetic closures, miniature assemblies, crafts and DIY projects.

Product Specifications

• Magnet Type: Neodymium Rare Earth Magnet (NdFeB)

• Grade: N42

• Shape: Round / Disc

• Diameter: 6mm

• Thickness: 3mm

• Dimensions: 6 x 3mm

• Pulling Force: 893g (rated)

• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni)

• Colour: Silver

• Magnetisation Direction: Axial (through the thickness)

• Maximum Operating Temperature: 80°C

• Dimensional Tolerance: ±0.1mm

• Quantity: 1 Piece

Applications

The 6 x 3mm neodymium disc magnet is suitable for a wide range of electronic, industrial, household and hobby applications, including:

• Electronics: Magnetic sensors, reed switches, actuators and compact electronic assemblies.

• Magnetic Closures: Small storage boxes, miniature compartments, removable covers and lightweight closures.

• 3D Printing Projects: Embedded magnets for custom enclosures, magnetic attachments, removable panels and printed assemblies.

• DIY and Hobby Projects: Custom magnetic fixtures, prototypes, model making and creative projects.

• Industrial Applications: Small magnetic positioning systems, holding mechanisms and precision fixtures.

• Robotics and Automation: Magnetic triggering, positioning and detection systems.

• Arts and Crafts: Magnetic displays, decorations, jewellery projects and handmade products.

• Educational Projects: Magnetic experiments, demonstrations and STEM learning activities.

Important Handling and Safety Information

• Neodymium magnets are extremely strong for their size and should be handled carefully to prevent pinching injuries.

• These magnets are brittle and may crack, chip or shatter if dropped or allowed to collide forcefully with other magnets or metal surfaces.

• When separating stacked magnets, slide them apart rather than pulling them directly away from each other.

• Do not drill, cut, grind or machine neodymium magnets, as they may shatter and machining dust can present a fire hazard.

• Avoid prolonged exposure to moisture or corrosive environments, particularly if the nickel coating becomes damaged.

• Do not expose the magnet to temperatures above 80°C, as excessive heat may cause permanent loss of magnetic strength.

• Keep away from pacemakers, sensitive electronic equipment and magnetic storage devices.

• The nickel coating may cause skin irritation in individuals with nickel allergies.

• Warning: This small magnet presents a serious swallowing hazard. Keep away from children and pets. Swallowed magnets can cause severe internal injuries and require immediate medical attention.

Please Note: The rated 893g pulling force represents an ideal direct-pull measurement against a suitable thick, flat steel surface. Actual holding strength may vary depending on the mounting surface, material thickness, air gap, pulling direction and operating conditions. Sliding or shear holding force is generally lower than direct pulling force.

Package Includes: 1 x Round Neodymium Disc Magnet 6 x 3mm – N42.