Neodymium Disc Magnet – 6mm x 1.5mm | N45

The Neodymium Disc Magnet – 6mm x 1.5mm | N45 is a small, high-performance rare earth permanent magnet measuring 6mm in diameter x 1.5mm thick. Manufactured from N45 grade Neodymium Iron Boron (NdFeB), this compact round magnet provides strong magnetic performance relative to its small physical size and is suitable for precision holding, positioning, sensing, craft, electronics, manufacturing and OEM applications.

Also known as an N45 rare earth disc magnet, NdFeB disc magnet, miniature neodymium magnet or round neodymium magnet, its thin 1.5mm profile makes it particularly useful where installation space is limited. The flat circular geometry allows the magnet to be bonded or incorporated into product housings, closures, displays, models, prototypes and custom magnetic assemblies.

As a permanent magnet, this N45 neodymium disc requires no electricity, batteries or charging to maintain its magnetic field.

Key Features

• 6mm diameter x 1.5mm thickness
• N45 magnetic grade
• Neodymium Iron Boron (NdFeB)
• High-performance rare earth permanent magnet
• Compact 6mm diameter
• Slim 1.5mm profile
• Strong magnetic performance relative to size
• Flat circular disc shape
• Suitable for precision and space-restricted applications
• Can be bonded into compatible assemblies
• Permanent magnetic operation
• No electricity or batteries required
• Suitable for manufacturing, craft, prototyping and OEM applications

Common Applications

• Miniature magnetic assemblies
• Product manufacturing
• Magnetic closures
• Sensors and switches
• Electronics assemblies
• Models and prototypes
• Craft and hobby projects
• Displays and signage
• Packaging
• Furniture and cabinetry
• Holding and positioning
• Educational projects
• OEM products

Compact 6mm x 1.5mm Disc Magnet

At only 6mm in diameter and 1.5mm thick, this neodymium magnet is designed for applications where a compact magnetic component is required.

Its miniature dimensions make it useful for integration into:

• Small recesses
• Product housings
• Compact closures
• Models
• Display components
• Sensors
• Fixtures
• Custom manufactured products

The 6mm x 1.5mm dimensions describe the physical size of the magnet and should not be interpreted as a pull-force rating.

N45 Grade Neodymium Magnet

This disc magnet is manufactured from N45 grade Neodymium Iron Boron.

N45 is a high-performance NdFeB magnetic grade commonly selected where strong magnetic performance is required from a relatively small magnet.

The grade designation relates to the magnetic material's properties; however, it does not by itself specify the finished magnet's pull force.

Practical performance also depends on the magnet's dimensions, magnetisation, target material and complete magnetic circuit.

Neodymium Iron Boron Rare Earth Magnet

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

Its high magnetic performance relative to physical size allows engineers, manufacturers and product designers to create compact magnetic systems without requiring the larger magnet volumes typically associated with lower-strength magnetic materials.

This makes neodymium particularly useful for:

• Miniature assemblies
• Compact products
• Precision equipment
• Sensors
• Closures
• Fixtures
• OEM components

Slim 1.5mm Profile

The 1.5mm thickness makes this magnet particularly suitable for low-profile applications.

Potential uses include installation behind or within:

• Thin panels
• Displays
• Product housings
• Craft materials
• Packaging components
• Furniture
• Models

When installing the magnet behind another material, remember that magnetic attraction decreases as the distance between the magnet and target increases.

Magnetic Holding Performance

Actual magnetic holding performance depends on the complete application.

Important factors include:

• N45 magnetic grade
• Target steel thickness
• Steel composition
• Available contact area
• Surface flatness
• Air gaps
• Paint and coatings
• Adhesive layers
• Magnet orientation
• Load direction
• Distance from the target

No specific pull force or Gauss rating has been supplied for this product, so these values should not be inferred from its N45 grade or dimensions alone.

Magnetic Attraction Decreases with Distance

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

Even a small physical gap can reduce magnetic performance.

Potential air gaps include:

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

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

Direct Pull vs Shear Force

Magnetic holding performance also depends on load direction.

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

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

Practical vertical holding performance can therefore be significantly different from direct-pull performance.

Bonding Small Neodymium Disc Magnets

The flat circular faces of this 6mm x 1.5mm disc magnet make it convenient for bonding into compatible products and components.

Potential bonded applications include:

• Magnetic closures
• Craft products
• Models
• Displays
• Packaging
• Product housings
• Furniture
• Prototypes

Before bonding, ensure the magnet and substrate are clean and use an adhesive suitable for both materials.

Follow the adhesive manufacturer's instructions regarding surface preparation, application and curing.

Compatible Target Materials

Neodymium magnets attract ferromagnetic iron and compatible steels.

Suitable target materials may include:

• Mild steel
• Iron
• Magnetic steel sheet
• Ferromagnetic fasteners
• Compatible steel components

They will not effectively attract:

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

Many stainless steel grades may also provide weak or negligible magnetic attraction.

Neodymium vs Ferrite Magnets

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

Neodymium magnets generally provide:

• Much higher magnetic strength relative to size
• Compact dimensions for high-performance applications
• Greater suitability for miniature magnetic assemblies

Ferrite magnets are generally:

• More economical
• Naturally corrosion resistant
• Less powerful relative to their size
• Suitable for many general-purpose applications

The high magnetic performance of N45 neodymium is particularly useful when physical space is limited.

Permanent Magnetic Operation

This N45 disc magnet is a permanent magnet, so no external power source is required.

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: N45 Disc Magnet, Rare Earth Disc Magnet, NdFeB Disc Magnet, Round Neodymium Magnet, Miniature Neodymium Magnet
• Diameter: 6mm
• Thickness: 1.5mm
• Shape: Disc / Round
• Magnetic Material: Neodymium Iron Boron (NdFeB)
• Magnetic Grade: N45
• 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 compact assemblies
• Typical Applications: Manufacturing, sensors, closures, craft, displays, models, prototypes and OEM products

Industrial, Manufacturing and OEM Applications

The combination of N45 magnetic material and compact 6mm x 1.5mm dimensions makes this disc magnet suitable for integration into products where available space is limited.

Potential users include:

• Product designers
• Engineers
• Equipment manufacturers
• Electronics manufacturers
• Display manufacturers
• Furniture manufacturers
• Model makers
• Prototype developers
• OEM manufacturers

For engineered applications, magnetic performance should be assessed as part of the complete magnetic circuit.

Handling Small Neodymium Magnets

Neodymium magnets are hard and brittle despite their high magnetic strength.

They can chip, crack or fracture if they:

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

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

Small neodymium magnets can also be difficult to see if dropped and should be handled and stored carefully.

Please Note

This product is an N45 Neodymium Disc Magnet measuring 6mm in diameter x 1.5mm thick.

No specific 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 N45 material grade, target steel thickness and composition, available contact area, surface condition, air gaps, coatings, magnet orientation and load direction.

Neodymium is a hard and brittle magnetic material and can chip or fracture under impact. Do not drill, cut or machine the magnet.

Small neodymium magnets present a serious ingestion hazard. Keep this magnet securely away from babies and children. If more than one magnet, or a magnet and another metal object, is swallowed, they can attract through internal tissue and cause severe injury requiring urgent medical attention.

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