Neodymium Disc Magnet – 30mm x 10mm

The Neodymium Disc Magnet – 30mm x 10mm is a substantial rare earth permanent magnet measuring 30mm in diameter and 10mm thick. Manufactured from Neodymium Iron Boron (NdFeB), this circular magnet provides high magnetic performance relative to its size and is suitable for a wide range of industrial, engineering, manufacturing, holding, positioning, fixture, display and custom OEM applications.

Also known as a 30mm neodymium magnet, rare earth disc magnet, NdFeB disc magnet, round neodymium magnet or circular rare earth magnet, its 30mm diameter provides a broad circular profile while the 10mm thickness creates a robust disc geometry suitable for integration into magnetic assemblies, housings and recessed mounting applications.

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

Key Features

• 30mm diameter
• 10mm thickness
• Circular disc shape
• Neodymium Iron Boron (NdFeB)
• High-performance rare earth permanent magnet
• Strong magnetic performance relative to size
• Suitable for magnetic holding and positioning
• Useful for fixtures and jigs
• Suitable for product assemblies
• Can be integrated into compatible recesses and housings
• Suitable for industrial and engineering applications
• Permanent magnetic operation
• No electricity or batteries required
• Suitable for custom and OEM magnetic systems

Common Applications

• Industrial equipment
• Engineering projects
• Manufacturing
• Magnetic holding
• Magnetic positioning
• Fixtures and jigs
• Product assemblies
• Machinery
• Magnetic closures
• Furniture and cabinetry
• Displays and signage
• Removable components
• Sensors and instrumentation
• Research and development
• Prototyping
• Custom OEM products

30mm Diameter x 10mm Thick Neodymium Disc Magnet

This rare earth disc magnet measures:

• Diameter: 30mm
• Thickness: 10mm

The 30mm circular profile provides a useful magnetic footprint, while the 10mm thickness creates a substantial disc-shaped magnet suitable for applications where a compact but comparatively thick magnetic component is required.

Potential installation methods include integration into:

• Circular recesses
• Product housings
• Fixtures
• Jigs
• Equipment
• Furniture
• Display systems
• Custom manufactured assemblies

The physical dimensions 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 volume makes neodymium particularly useful for applications requiring substantial magnetic attraction from a compact component.

Neodymium disc magnets are commonly incorporated into:

• Industrial machinery
• Manufacturing systems
• Engineering assemblies
• Fixtures and jigs
• Magnetic closures
• Displays
• Furniture
• Sensors
• Prototype systems
• OEM products

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

Magnetic Holding and Positioning

The 30mm x 10mm disc format can be incorporated into appropriately designed magnetic holding and positioning systems.

Potential uses include:

• Holding components against steel
• Positioning parts during assembly
• Locating components
• Creating removable connections
• Magnetic fixtures
• Magnetic jigs
• Retaining removable panels
• Product integration

Actual holding performance depends on the complete magnetic circuit and mechanical installation.

Fixtures, Jigs and Manufacturing

Neodymium disc magnets can provide convenient magnetic attachment in manufacturing and engineering environments.

Potential uses include:

• Assembly fixtures
• Positioning aids
• Removable guides
• Inspection equipment
• Prototype machinery
• Manufacturing tools
• Equipment attachments

Magnetic mounting can allow components to be repositioned without permanent fastening where the application and operating conditions permit.

Magnetic Closures

This disc magnet may also be incorporated into magnetic closure systems for:

• Cabinets
• Furniture
• Boxes
• Cases
• Access panels
• Displays
• Product enclosures
• Removable covers

Where magnets are installed in opposing pairs, the pole orientation should be checked before permanent installation to ensure the magnets attract rather than repel.

If failure of a magnetic closure could create a hazard, suitable secondary mechanical retention should be incorporated.

Magnetisation Direction

The magnetisation direction has not been supplied for this 30mm x 10mm neodymium disc magnet.

Disc magnets are commonly produced with different magnetic configurations, so pole location should not be assumed solely from the magnet's shape.

Magnetisation direction can affect:

• Pole location
• Selection of the working face
• Magnet-to-magnet attraction
• Sensor response
• Holding performance
• Magnetic circuit design

Where pole orientation is important, the magnetisation direction should be confirmed before installation.

Magnetic Holding Performance

Actual magnetic performance depends on factors including:

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

No specific pull force or magnetic flux density in Gauss has been supplied for this product and these values should not be inferred solely from its dimensions.

Direct Pull vs Shear Force

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

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

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

Practical vertical holding performance may therefore be substantially lower than ideal direct-pull performance.

Vibration, shock and mechanical leverage can further reduce practical holding reliability.

Air Gaps and Surface Coatings

Neodymium magnets generally provide their strongest practical attraction when positioned close to clean, flat and sufficiently thick ferromagnetic steel.

Magnetic performance can be reduced by gaps created by:

• Paint
• Powder coating
• Adhesive
• Plastic
• Protective coatings
• Dirt
• Rust
• Surface irregularities

Even relatively small non-magnetic gaps can noticeably reduce magnetic attraction.

Bonding a 30mm x 10mm Disc Magnet

The flat circular geometry can make this magnet suitable for bonding into compatible housings or recessed mounting points.

For adhesive installation:

• Clean the magnet and substrate thoroughly
• Remove grease, dust and contamination
• Select an adhesive compatible with both surfaces
• Follow the adhesive manufacturer's preparation instructions
• Avoid unnecessarily thick adhesive layers
• Allow the adhesive to cure fully before loading
• Avoid force-fitting the magnet into an undersized recess

Neodymium Iron Boron is mechanically brittle, so excessive pressure during installation should be avoided.

Compatible Target Materials

This magnet is designed to attract ferromagnetic iron and compatible steels.

Suitable targets may include:

• Mild steel
• Iron
• Magnetic steel
• Steel plates
• Ferromagnetic machinery components
• Compatible steel structures

It 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 characteristics.

Neodymium magnets generally provide:

• Much higher magnetic strength relative to size
• Compact dimensions
• Strong performance in space-restricted designs
• Suitability for high-performance magnetic assemblies

Ferrite magnets are generally:

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

Neodymium is often selected where strong magnetic performance from a relatively compact magnet is an important design requirement.

Permanent Magnetic Operation

This 30mm x 10mm NdFeB disc is a permanent magnet.

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, Circular Rare Earth Magnet
• Diameter: 30mm
• Thickness: 10mm
• Shape: Disc / Round
• Magnetic Material: Neodymium Iron Boron (NdFeB)
• Magnet Type: Rare Earth Permanent Magnet
• Magnetic Operation: Permanent
• Power Required: None
• Target Materials: Compatible ferromagnetic iron and steel
• Primary Functions: Magnetic holding, positioning and integration into magnetic assemblies
• Typical Applications: Engineering, manufacturing, fixtures, jigs, machinery, furniture, displays, product assemblies, prototypes and OEM products

Industrial, Engineering and OEM Applications

The combination of a 30mm diameter and 10mm thickness makes this neodymium disc magnet suitable for a broad range of engineered and manufactured products.

Potential users include:

• Engineers
• Product designers
• Equipment manufacturers
• Fixture and jig manufacturers
• Furniture manufacturers
• Display manufacturers
• Machinery builders
• Research laboratories
• Prototype developers
• OEM manufacturers

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

Handling Neodymium Disc Magnets

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

Neodymium Iron Boron is hard and brittle. Magnets may chip, crack or fracture if allowed to collide forcefully with other magnets or steel.

Avoid:

• Allowing magnets to snap together uncontrollably
• Forceful impact with steel
• Placing fingers between attracting magnets
• Crushing or excessive mechanical pressure
• Drilling
• Cutting
• Machining
• Force-fitting into undersized recesses

Separate strong magnets using controlled sliding techniques where appropriate rather than attempting to pull them directly apart.

Please Note

This product is a Neodymium Disc Magnet measuring 30mm in diameter x 10mm thick, manufactured from Neodymium Iron Boron (NdFeB) rare earth magnetic material.

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

Any magnetic pull-force value should not automatically be treated as a safe working load. This magnet should not be used as certified lifting equipment or as the sole means of supporting a hazardous load without an appropriately engineered and rated system.

Neodymium magnets are hard and brittle. Avoid drilling, cutting, machining, force-fitting, impact and uncontrolled collisions.

Keep neodymium magnets securely away from babies and children. Swallowed magnets can attract through internal tissue and cause severe or life-threatening injuries requiring urgent medical attention.

Keep strong magnets away from pacemakers and other medical implants, magnetic storage media and sensitive electronic equipment.