Neodymium Disc Magnet – 6.35mm x 5.08mm

The Neodymium Disc Magnet – 6.35mm x 5.08mm is a compact rare earth permanent magnet measuring 6.35mm in diameter x 5.08mm thick. Manufactured from Neodymium Iron Boron (NdFeB), this small cylindrical magnet provides high magnetic performance relative to its size and is suitable for product assemblies, engineering, manufacturing, sensors, electronics, magnetic closures, craft, models, prototyping and OEM applications.

With a 6.35mm circular face and 5.08mm thickness, this neodymium magnet can be integrated into compact housings, circular recesses and mechanical assemblies where installation space is limited. Its compact proportions make it useful for applications requiring a small permanent magnetic component without the need for electricity, batteries or charging.

Also known as a rare earth disc magnet, NdFeB disc magnet, round neodymium magnet, small neodymium cylinder magnet or permanent disc magnet, this product is suitable for a wide range of commercial, industrial and custom magnetic applications.

Key Features

• Diameter: 6.35mm
• Thickness: 5.08mm
• Material: Neodymium Iron Boron (NdFeB)
• Rare earth permanent magnet
• Compact cylindrical disc shape
• High magnetic performance relative to physical size
• Suitable for compact housings and circular recesses
• Suitable for magnetic holding and positioning
• Useful for sensors, switches and instrumentation
• Suitable for magnetic closures and catches
• Suitable for product manufacturing and custom assemblies
• Permanent magnetic operation
• No electricity, batteries or charging required
• Suitable for prototypes and OEM applications

Common Applications

• Product assemblies
• Magnetic closures and catches
• Holding and positioning
• Sensors
• Magnetic switches
• Instrumentation
• Electronics
• Engineering
• Manufacturing
• Small fixtures and jigs
• Furniture and cabinetry
• Displays and signage
• Models and miniatures
• Craft and DIY projects
• Packaging
• Research and development
• Prototypes
• Custom magnetic assemblies
• OEM products

6.35mm Diameter x 5.08mm Thick Disc Magnet

This neodymium magnet measures 6.35mm in diameter x 5.08mm thick, creating a compact cylindrical magnetic component suitable for space-conscious designs.

Its small dimensions can be useful for installation into:

• Circular recesses
• Product housings
• Mechanical assemblies
• Magnetic closures
• Sensor systems
• Models
• Prototype components
• Custom manufactured products

Where the magnet is installed into a recess, provide suitable dimensional clearance and avoid force-fitting the brittle neodymium material.

Neodymium Iron Boron Rare Earth Magnet

Neodymium Iron Boron (NdFeB) is a high-performance rare earth permanent magnetic material widely used where strong magnetic properties are required from compact dimensions.

Neodymium magnets are commonly incorporated into:

• Industrial equipment
• Electronics
• Sensors
• Product assemblies
• Closures
• Mechanical devices
• Fixtures
• Custom manufactured products

Their high magnetic performance relative to size makes neodymium particularly useful where available installation space is limited.

The specific neodymium grade has not been supplied for this product and should not be assumed.

Magnetic Closures and Catches

This compact neodymium disc magnet can be incorporated into appropriately designed magnetic closure systems.

Potential applications include:

• Boxes
• Packaging
• Cabinets
• Small access panels
• Furniture
• Display components
• Product enclosures
• Custom closures

Depending on the design, the magnet may attract a suitable ferromagnetic steel strike plate or another appropriately oriented permanent magnet.

For magnet-to-magnet closures, confirm polarity before permanent installation.

Sensors and Instrumentation

Small neodymium disc magnets are commonly incorporated into magnetic sensing systems because their compact size allows them to be positioned close to suitable sensors.

Potential applications include:

• Position sensors
• Proximity detection
• Reed switches
• Magnetic switches
• Instrumentation
• Mechanical indicators
• Automation components
• Prototype electronics

The magnetisation direction and pole orientation have not been supplied. These characteristics should be confirmed where magnetic field direction is important to the operation of a sensor or switch.

Models, Craft and Small Product Assemblies

The compact dimensions can also make this magnet suitable for small-scale projects and product assemblies.

Potential uses include:

• Models and miniatures
• Craft projects
• Small removable components
• Displays
• Prototype products
• Custom closures
• Educational projects

Care should be taken when incorporating small neodymium magnets into consumer products because detached magnets can present a serious ingestion hazard.

Magnetic Performance

The practical magnetic performance of this disc magnet depends on factors including:

• Neodymium grade
• Magnetisation direction
• Magnet geometry
• Target steel composition
• Target steel thickness
• Available contact area
• Surface flatness
• Air gaps
• Paint and coatings
• Rust and contamination
• 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 from its physical dimensions.

Direct Pull vs Shear Force

Magnetic holding performance varies according to the direction in which a load is applied.

Direct pull occurs when the magnet is pulled perpendicular to the target steel surface.

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

Practical holding on a vertical steel surface can therefore be considerably lower than ideal direct-pull performance.

Surface friction, vibration, leverage and movement can further affect practical holding capacity.

Air Gaps and Small Neodymium Magnets

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

Performance can be reduced by gaps created by:

• Paint
• Powder coating
• Adhesive
• Plastic
• Protective films
• Dirt
• Rust
• Uneven surfaces
• Mechanical clearance

For a compact magnet measuring only 6.35mm in diameter, even relatively small air gaps can have a noticeable effect on magnetic performance.

Bonding Neodymium Disc Magnets

This magnet may be bonded into a suitable circular recess or onto an appropriate substrate.

Before bonding:

• Confirm magnetic polarity and orientation
• Ensure surfaces are clean and dry
• Remove oil, grease and contamination
• Select an adhesive compatible with both surfaces
• Provide suitable dimensional clearance
• Avoid force-fitting
• Allow the adhesive to cure according to its instructions

The coating or plating for this magnet has not been supplied, so adhesive compatibility should be verified for the actual surface finish.

Compatible Target Materials

Neodymium magnets attract suitable ferromagnetic materials, including:

• Mild steel
• Iron
• Magnetic steel
• Compatible ferromagnetic components

They do not effectively attract non-magnetic materials such as:

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

Many stainless steel grades may also be weakly magnetic or non-magnetic and should be tested before relying on magnetic attraction.

Neodymium vs Ferrite Disc Magnets

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

Neodymium magnets generally provide:

• Higher magnetic performance relative to size
• Strong magnetic properties from compact dimensions
• Advantages where installation space is restricted
• Broad use in sensors, electronics and precision assemblies

Ferrite magnets are generally:

• More economical
• Naturally corrosion resistant
• Suitable for many general-purpose magnetic applications
• Used where larger physical dimensions are acceptable

A compact neodymium magnet such as this 6.35mm x 5.08mm disc can be particularly useful where available space is limited.

Permanent Magnetic Operation

This neodymium disc magnet is a permanent magnet.

It requires:

• No electricity
• No batteries
• No charging
• No external power supply

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, Small Neodymium Cylinder Magnet
• Diameter: 6.35mm
• Thickness: 5.08mm
• Shape: Disc / Cylinder
• 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, sensing and attraction
• Typical Applications: Product assemblies, closures, sensors, electronics, engineering, manufacturing, models, craft, prototypes and OEM products

Handling Neodymium Magnets

Neodymium magnets are hard and brittle and should be handled carefully.

Avoid:

• Allowing magnets to snap together
• Allowing magnets to strike steel objects
• Dropping them onto hard surfaces
• Force-fitting into undersized recesses
• Drilling
• Cutting
• Machining
• Applying unnecessary impact or mechanical stress

Neodymium magnets can chip, crack or break during uncontrolled collisions. Broken fragments may have sharp edges.

Safety Information

This 6.35mm diameter neodymium magnet is small enough to present a serious ingestion hazard and must be kept securely away from babies and children.

Swallowed magnets can cause severe or life-threatening internal injuries. Multiple swallowed magnets, or a magnet swallowed with another metal object, can attract through intestinal tissue. Seek urgent medical attention if magnet ingestion is suspected.

Keep neodymium magnets an appropriate distance from:

• Pacemakers
• Implanted medical devices
• Magnetic storage media
• Magnetic cards
• Sensitive electronic equipment

Where the magnet is incorporated into a consumer product, appropriate measures should be taken to prevent it from becoming detached during normal or foreseeable use.

Please Note

This product is a Neodymium Disc Magnet measuring 6.35mm in diameter x 5.08mm thick, manufactured from Neodymium Iron Boron (NdFeB) rare earth magnetic material.

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

Actual magnetic performance depends on the magnetic grade, magnetisation, target steel composition and thickness, contact area, air gaps, surface condition, magnetic circuit and operating conditions.

Due to its small size, this magnet presents a serious ingestion hazard and must be kept securely away from children.

This magnet is not certified lifting equipment and should not be used for overhead or safety-critical lifting.