Neodymium Block Magnet – 50.8mm x 12.7mm x 6.35mm | N35

Description

The Neodymium Block Magnet – 50.8mm x 12.7mm x 6.35mm | N35 is a powerful rectangular rare earth magnet designed for applications requiring strong magnetic performance, a slim profile and reliable permanent magnetic attraction.

Manufactured from N35 grade Neodymium Iron Boron (NdFeB), this magnet measures 50.8mm long x 12.7mm wide x 6.35mm thick. Its elongated rectangular shape provides a practical magnetic component for industrial equipment, engineering projects, magnetic holding systems, workshop fixtures and custom magnetic assemblies.

N35 neodymium magnets offer high magnetic energy density compared with many conventional permanent magnet materials, making them useful for applications where magnetic performance and compact dimensions are important.

The magnet's 50.8mm length and 12.7mm width create an extended rectangular profile, while its 6.35mm thickness allows it to be incorporated into suitable housings, recesses and mechanical assemblies.

Ideal for engineering, manufacturing, magnetic retention, positioning, alignment, product development and OEM applications, this rectangular rare earth magnet provides continuous magnetic attraction without electricity, batteries or charging.

Also known as a 50.8mm neodymium block magnet, N35 rare earth magnet, rectangular NdFeB magnet, neodymium bar magnet or 2-inch magnetic block, this versatile permanent magnet can be integrated into a wide range of industrial and technical applications.

Key Features

• Dimensions: 50.8mm x 12.7mm x 6.35mm

• Length: 50.8mm

• Width: 12.7mm

• Thickness: 6.35mm

• Shape: Rectangular block

• Material: Neodymium Iron Boron (NdFeB)

• Magnetic grade: N35

• Magnet type: Rare Earth Permanent Magnet

• High magnetic energy density

• Elongated rectangular profile

• Suitable for industrial and engineering applications

• Useful for magnetic holding and retention

• Suitable for positioning and alignment

• Ideal for custom magnetic assemblies

• Permanent magnetic operation

• No electricity or batteries required

Common Applications

This N35 neodymium block magnet may be suitable for:

• Industrial machinery

• Engineering equipment

• Manufacturing

• Magnetic holding systems

• Positioning and alignment

• Fixtures and jigs

• Mechanical assemblies

• Equipment housings

• Magnetic retention

• Magnetic closures

• Workshop projects

• Custom magnetic systems

• Product development

• Research and development

• Laboratory equipment

• Prototypes

• OEM manufacturing

Suitability depends on the required magnetic performance, magnetisation direction, installation geometry and complete assembly design.

N35 Grade Neodymium Magnet

This rectangular block magnet is manufactured from N35 grade Neodymium Iron Boron, a high-performance rare earth magnetic material.

Neodymium magnets provide high magnetic energy density compared with many conventional magnet materials, allowing strong magnetic performance from relatively compact components.

What Does N35 Mean?

N35 identifies the magnetic material's energy classification.

The grade designation relates to the maximum energy product of the NdFeB material and helps distinguish it from other neodymium grades.

N35 does not mean this magnet has a 35kg pull force.

The actual magnetic holding strength depends on the finished magnet's dimensions, magnetisation direction, magnetic circuit and operating conditions.

Rectangular 50.8mm x 12.7mm x 6.35mm Design

This magnet measures 50.8mm long x 12.7mm wide x 6.35mm thick, giving it an elongated rectangular shape.

Its dimensions are equivalent to approximately:

• 2 inches long

• 1/2 inch wide

• 1/4 inch thick

This geometry may be useful where:

• A long, narrow magnetic component is required

• A rectangular contact area is preferred

• The magnet must fit into an elongated recess

• Magnetic positioning or retention is needed

• A compact magnetic assembly is being developed

The stated dimensions describe the magnet's physical geometry and do not indicate its pull force or holding capacity.

Engineering and Industrial Applications

N35 neodymium block magnets can be incorporated into engineered products where permanent magnetic attraction is required.

Potential applications include:

• Industrial machinery

• Manufacturing equipment

• Magnetic positioning systems

• Fixtures and jigs

• Mechanical assemblies

• Equipment housings

• Custom magnetic devices

• Prototype mechanisms

For applications involving vibration, movement or dynamic loading, the complete assembly should be tested under realistic operating conditions.

Magnetic Holding and Retention

The elongated rectangular profile of this magnet may be suitable for magnetic holding and retention applications.

Potential uses include:

• Removable components

• Magnetic closures

• Access panels

• Equipment covers

• Positioning fixtures

• Product assemblies

Holding performance depends on the magnetisation direction, contact area, target material, air gaps and load direction.

Magnetic retention should not replace engineered mechanical restraint where failure could create a safety hazard.

Fixtures, Jigs and Positioning

Rectangular neodymium magnets can be used within suitable fixtures and positioning systems.

Potential functions include:

• Holding components temporarily

• Locating parts

• Maintaining alignment

• Retaining removable components

• Assisting repetitive positioning

• Creating magnetic reference points

The magnet should be securely retained within the fixture or assembly, with appropriate consideration given to the magnetic forces involved.

Magnetisation Direction

Block magnets can be manufactured with different magnetic orientations.

A 50.8mm x 12.7mm x 6.35mm rectangular block magnet could potentially be:

• Magnetised through its 6.35mm thickness

• Magnetised across its 12.7mm width

• Magnetised along its 50.8mm length

The actual magnetisation direction and pole configuration have not been supplied and should not be assumed from the block shape.

Confirm the magnetic orientation before incorporating the magnet into a design requiring a specific field direction.

Magnetic Performance

The practical magnetic performance of this N35 block magnet depends on:

• Magnetic material properties

• Magnet dimensions

• Magnetisation direction

• Pole configuration

• Magnetic circuit design

• Target material

• Target steel thickness

• Contact area

• Surface condition

• Air gaps

• Operating temperature

• Load direction

No specific pull force or surface Gauss rating has been supplied.

These values should not be inferred from the N35 designation alone.

Direct Pull vs Shear Force

Magnetic holding performance varies according to load direction.

Direct pull occurs when the magnet is separated perpendicular to the attracting surface.

Shear loading occurs when the magnet is encouraged to slide parallel to the target surface.

Shear performance may be influenced by:

• Surface friction

• Surface coatings

• Air gaps

• Vibration

• Installation orientation

• Mechanical leverage

Where the magnet is used for holding or retention, performance should be tested under the actual operating conditions.

Air Gaps Reduce Magnetic Attraction

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

Potential sources of air gaps include:

• Adhesive

• Paint

• Powder coating

• Plastic housings

• Protective films

• Mechanical clearance

• Surface irregularities

For applications requiring maximum magnetic interaction, unnecessary separation should be minimised.

Target Steel Thickness

The thickness and composition of the target material can influence magnetic holding performance.

A thin steel target may become magnetically saturated and may not provide the same attraction as an appropriately thick ferromagnetic target.

For magnetic holding applications, the target material and magnetic circuit should be considered during product selection and assembly design.

Bonding and Installation

Adhesive bonding may be suitable for incorporating this magnet into a product or assembly.

Before installation:

1. Confirm magnetisation direction and polarity.

2. Check the intended magnetic arrangement.

3. Clean the bonding surfaces.

4. Remove dust, oil and grease.

5. Select an adhesive compatible with the magnet's actual coating.

6. Confirm the adhesive is suitable for the intended operating conditions.

7. Provide appropriate dimensional clearance.

8. Avoid force-fitting or excessive clamping pressure.

9. Allow the adhesive to cure according to the manufacturer's instructions.

The exact coating or plating of this magnet has not been supplied, so adhesive compatibility should be confirmed before permanent installation.

For high-load or safety-critical applications, suitable engineered mechanical retention may also be required.

Avoid Force-Fitting

Neodymium Iron Boron is a hard but brittle magnetic material.

Do not force the magnet into an undersized hole, recess or housing.

Excessive mechanical pressure can cause:

• Chipping

• Cracking

• Fracturing

• Damage to protective coatings

Provide appropriate dimensional clearance and use a suitable retention method.

Do Not Machine Neodymium Magnets

Finished neodymium magnets should not normally be mechanically modified.

Avoid:

• Drilling

• Cutting

• Grinding

• Filing

• Crushing

• Machining

These processes can damage the brittle NdFeB material and any protective coating.

If a different size or shape is required, use a magnet manufactured to the required dimensions.

Compatible Magnetic Materials

Neodymium magnets attract suitable ferromagnetic materials, including:

• Iron

• Mild steel

• Magnetic steel

• Compatible ferromagnetic components

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

• Aluminium

• Copper

• Brass

• Plastic

• Timber

• Glass

Many stainless steel grades may also be weakly magnetic or non-magnetic.

Test the intended target material where magnetic compatibility is important.

N35 Neodymium vs Ferrite Magnets

Neodymium magnets generally provide higher magnetic energy density than conventional ferrite magnets.

N35 neodymium may be preferred for:

• Compact magnetic assemblies

• High magnetic performance relative to size

• Engineering components

• Fixtures and jigs

• Magnetic holding and retention

• Custom magnetic systems

Ferrite magnets may be preferred for:

• More economical applications

• Larger magnetic components

• Applications benefiting from natural corrosion resistance

• Designs where lower magnetic energy density is acceptable

The appropriate magnetic material depends on magnetic performance, environmental conditions and design constraints.

Permanent Magnetic Operation

This N35 block 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

Compliance & Safety

Pinch Hazards: Neodymium magnets can attract rapidly and forcefully to other magnets and ferromagnetic objects. Keep fingers and skin clear of contact points.

Brittle Material: Neodymium Iron Boron is hard but brittle. Magnets can chip, crack or fracture if dropped, struck or allowed to collide.

Flying Fragments: Broken magnets may produce sharp fragments. Use appropriate protective equipment when handling powerful magnets.

Do Not Machine: Avoid drilling, cutting, grinding or modifying the magnet.

Medical Devices: Keep magnets at an appropriate distance from pacemakers, implanted medical devices and magnetically sensitive equipment.

Children: Keep magnets securely away from babies and children. Swallowed magnets can cause severe internal injuries and require urgent medical attention.

Lifting Applications: This magnet is not certified lifting equipment and must not be used for overhead or safety-critical lifting.

Frequently Asked Questions

What size is this magnet?

The magnet measures 50.8mm long x 12.7mm wide x 6.35mm thick, equivalent to approximately 2 inches x 1/2 inch x 1/4 inch.

What does N35 mean?

N35 identifies the magnetic material grade of the Neodymium Iron Boron magnet. It relates to the material's magnetic energy classification rather than its pull force.

Is N35 a strong magnetic grade?

Yes. N35 is a high-performance neodymium grade that provides substantially higher magnetic energy density than many conventional permanent magnet materials.

Does N35 mean 35kg pull force?

No. N35 identifies the magnetic material grade and does not indicate a 35kg pull force or lifting capacity.

Is this magnet magnetised through its thickness?

The magnetisation direction has not been supplied and should be confirmed before use in applications requiring a specific pole orientation.

Can this magnet be used for industrial applications?

It may be suitable for industrial machinery, fixtures, positioning systems and other engineered assemblies where its dimensions and magnetic properties meet the application requirements.

Can I glue this magnet into a housing?

Adhesive bonding may be suitable, provided the adhesive and installation method are appropriate for the magnet's actual coating and expected operating conditions.

Can this magnet be drilled or cut?

No. Neodymium is brittle and should not be drilled, cut, ground or machined.

Will this magnet attract stainless steel?

It depends on the stainless steel grade. Some stainless steels are ferromagnetic, while others are weakly magnetic or non-magnetic.

Related Products

Customers considering this product may also be interested in:

• Neodymium Block Magnets

• N35 Neodymium Magnets

• Neodymium Disc Magnets

• Neodymium Cylinder Magnets

• Rare Earth Pot Magnets

• High-Temperature Neodymium Magnets

• Custom-Made Magnets

Please Note

The Neodymium Block Magnet – 50.8mm x 12.7mm x 6.35mm | N35 measures 50.8mm long x 12.7mm wide x 6.35mm thick and is manufactured from N35 grade Neodymium Iron Boron.

The N35 designation identifies the magnetic material grade and does not mean this magnet has a 35kg pull force.

No specific pull force, Gauss rating, coating or plating, magnetisation direction, pole configuration, dimensional tolerance or maximum operating temperature has been supplied.

Actual magnetic performance depends on the magnetic material, magnetisation configuration, magnetic circuit, target material, target steel thickness, contact area, air gaps, load direction and installation geometry.

Neodymium is a hard and brittle magnetic material. Avoid impact, force-fitting, drilling, cutting, grinding or machining.

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