Neodymium Disc Magnet – 15mm x 7mm

The Neodymium Disc Magnet – 15mm x 7mm is a compact, high-performance rare earth permanent magnet measuring 15mm in diameter x 7mm thick. Manufactured from Neodymium Iron Boron (NdFeB), this round magnet provides strong magnetic performance relative to its physical size and is suitable for industrial, engineering, manufacturing, holding, positioning, closures, displays, craft and OEM applications.

Also known as a rare earth disc magnet, NdFeB disc magnet, round neodymium magnet or neodymium button magnet, its 15mm diameter and substantial 7mm thickness provide a versatile format for incorporation into equipment, fixtures, furniture, product housings, prototypes and custom magnetic assemblies.

As a permanent magnet, this neodymium disc requires no electricity, batteries or charging to maintain its magnetic field.

Key Features

• 15mm diameter x 7mm thickness
• Neodymium Iron Boron (NdFeB)
• High-performance rare earth permanent magnet
• Compact round disc shape
• Strong magnetic performance relative to size
• Two broad, flat circular faces
• Suitable for holding and positioning applications
• Useful for magnetic closures and fixtures
• Can be bonded into compatible housings and recesses
• Permanent magnetic operation
• No electricity or batteries required
• Suitable for industrial, custom and OEM applications

Common Applications

• Industrial equipment
• Engineering assemblies
• Magnetic holding and positioning
• Product manufacturing
• Magnetic closures
• Furniture and cabinetry
• Displays and signage
• Fixtures and jigs
• Sensors and prototypes
• Craft and DIY projects
• Research and development
• Custom magnetic assemblies
• OEM products

Compact 15mm x 7mm Disc Magnet

This neodymium magnet measures 15mm in diameter x 7mm thick, providing a compact cylindrical disc profile for applications requiring a relatively small but substantial permanent magnet.

Its round geometry can be useful for installation into:

• Circular recesses
• Product housings
• Furniture components
• Cabinetry
• Display systems
• Mechanical fixtures
• Closures
• Custom manufactured products

The 15mm x 7mm dimensions describe the physical size of the magnet and should not be interpreted as a pull-force or load-capacity rating.

Neodymium Iron Boron Rare Earth Magnet

Neodymium Iron Boron (NdFeB) is one of the strongest commercially available permanent magnetic materials.

Its high magnetic performance relative to magnet volume makes neodymium particularly useful where strong permanent magnetic properties are required within limited installation space.

Common uses for NdFeB magnets include:

• Industrial machinery
• Magnetic fixtures
• Sensors
• Product manufacturing
• Furniture
• Displays
• Closures
• Engineering systems
• OEM components

The specific NdFeB magnetic grade of this 15mm x 7mm magnet has not been supplied and should not be assumed.

Disc Magnet for Holding and Positioning

The simple round shape and flat circular faces make disc magnets versatile components for magnetic holding, positioning and product integration.

Potential uses include:

• Removable components
• Magnetic catches
• Cabinet closures
• Locating points
• Fixtures
• Display components
• Product assemblies
• Custom magnetic connections

For engineered applications, the magnet should be evaluated as part of the complete magnetic circuit.

Magnetisation Direction

The magnetisation direction of this 15mm x 7mm disc magnet has not been supplied.

Disc magnets can be manufactured with different magnetic pole orientations. The magnetisation direction determines the location of the north and south poles and can significantly affect performance within a magnetic assembly.

Where pole orientation is important for sensors, magnetic coupling, attraction or interaction with other magnets, magnetisation direction should be confirmed before installation.

Magnetic Holding Performance

Actual magnetic performance depends on multiple factors, including:

• NdFeB magnetic grade
• Magnetisation direction
• Target steel thickness
• Steel composition
• Available contact area
• Surface flatness
• Air gaps
• Paint and coatings
• Adhesive layers
• Magnet orientation
• Load direction
• Magnetic circuit design

No specific pull force or Gauss rating has been supplied for this product and these values should not be inferred solely from the 15mm x 7mm dimensions.

Direct Pull vs Shear Force

Magnetic holding performance varies according to the direction of the applied load.

Direct pull occurs when force attempts to separate the magnet perpendicular to its target steel surface.

Shear force occurs when a load acts parallel to the target and encourages the magnet to slide.

Practical vertical or sideways holding capacity can therefore be substantially lower than ideal direct-pull performance.

This is particularly important when designing magnetic fixtures, closures and mounting systems.

Magnetic Attraction Decreases with Distance

Neodymium magnets provide their strongest practical attraction when positioned close to compatible ferromagnetic material.

Magnetic attraction decreases rapidly as the distance between the magnet and target increases.

Air gaps can be introduced by:

• Paint
• Adhesive
• Plastic
• Paper
• Fabric
• Protective coatings
• Dirt
• Surface irregularities

For strongest practical attraction, maximise close contact with clean, flat and sufficiently thick ferromagnetic steel.

Bonding Neodymium Disc Magnets

The flat faces of this disc magnet make it convenient for bonding into compatible products, housings and recesses.

Potential bonded applications include:

• Furniture
• Cabinetry
• Magnetic closures
• Displays
• Signage
• Product housings
• Fixtures
• Prototypes

Before bonding:

• Clean the magnet and substrate
• Select an adhesive compatible with both surfaces
• Follow the adhesive manufacturer's preparation and curing instructions
• Avoid curing conditions that could exceed the magnet's temperature limits
• Allow the adhesive to cure fully before loading the assembly

Avoid force-fitting the magnet into an undersized recess because neodymium magnetic material is brittle.

Compatible Target Materials

Neodymium magnets attract ferromagnetic iron and compatible steels.

Suitable target materials may include:

• Mild steel
• Iron
• Magnetic steel sheet
• Ferromagnetic brackets
• Compatible steel machinery components

They will not effectively attract:

• Aluminium
• Copper
• Brass
• Plastic
• Timber
• Glass

Many stainless steel grades may also provide weak or negligible magnetic attraction and should be tested before use.

Neodymium vs Ferrite Disc Magnets

Neodymium and ferrite are both permanent magnetic materials, but they offer different performance characteristics.

Neodymium magnets generally provide:

• Much higher magnetic strength relative to size
• Compact dimensions for high-performance applications
• Strong magnetic attraction from relatively small magnet volumes

Ferrite magnets are generally:

• More economical
• Naturally corrosion resistant
• Lower in magnetic strength relative to size
• Suitable for many general-purpose applications

Neodymium is typically preferred where stronger magnetic performance is required within limited installation space.

Permanent Magnetic Operation

This NdFeB disc is a permanent magnet and requires no external power source to maintain its magnetic field.

It requires:

• No electricity
• No batteries
• No charging
• No electrical wiring

Its magnetic field remains continuously active during normal use.

Technical Specifications

• Product Type: Neodymium Disc Magnet
• Alternative Names: Rare Earth Disc Magnet, NdFeB Disc Magnet, Round Neodymium Magnet, Neodymium Button Magnet
• Diameter: 15mm
• Thickness: 7mm
• Shape: Disc / Round
• Magnetic Material: Neodymium Iron Boron (NdFeB)
• Magnet Type: Rare Earth Permanent Magnet
• Magnetic Operation: Permanent
• Power Required: None
• Target Material: Compatible ferromagnetic iron and steel
• Primary Functions: Magnetic holding, positioning and integration into magnetic assemblies
• Typical Applications: Industrial equipment, manufacturing, fixtures, closures, displays, furniture and OEM products

Industrial, Manufacturing and OEM Applications

The combination of a 15mm diameter and 7mm thickness makes this neodymium disc magnet suitable for integration into a broad range of manufactured products and engineered assemblies.

Potential users include:

• Engineers
• Product designers
• Equipment manufacturers
• Furniture manufacturers
• Display manufacturers
• Fabricators
• Prototype developers
• OEM manufacturers

For technical applications, magnetic performance should be assessed as part of the complete magnetic circuit and mechanical assembly.

Handling Neodymium Disc Magnets

Neodymium magnets can generate strong attraction and should be handled carefully.

NdFeB magnetic material is hard and brittle and can chip, crack or fracture if magnets:

• Snap forcefully together
• Strike steel surfaces
• Are dropped
• Experience excessive mechanical stress

Do not drill, cut or machine neodymium magnets using conventional methods.

When handling multiple magnets, keep them controlled and separated to avoid uncontrolled collisions and pinch injuries.

Please Note

This product is a Neodymium Disc Magnet measuring 15mm in diameter x 7mm thick.

No specific NdFeB magnetic grade, coating or plating, pull force, Gauss rating, magnetisation direction, dimensional tolerance or maximum operating temperature has been supplied and these specifications should not be assumed.

Actual magnetic performance depends on the magnetic grade and magnetisation direction, target steel thickness and composition, available contact area, air gaps, surface condition, magnet orientation and load direction.

Neodymium Iron Boron is a hard and brittle magnetic material. Avoid drilling, cutting, machining, impact and uncontrolled collisions between magnets.

Strong neodymium magnets can create pinch hazards. Keep magnets away from children, pacemakers and other medical implants, magnetic storage media and sensitive electronic equipment.