Neodymium Magnetic Fixing Plate – 74mm Diameter | M30 Thread

The Neodymium Magnetic Fixing Plate – 74mm Diameter | M30 Thread is a heavy-duty rare earth magnetic mounting base designed for removable and repositionable attachment to compatible ferromagnetic steel surfaces. Featuring a 74mm diameter magnetic base and an M30 threaded connection, this fixing plate provides a versatile interface for attaching compatible brackets, fixtures, handles, equipment and custom components.

Using high-performance Neodymium Iron Boron (NdFeB) permanent magnetic material, the fixing plate provides magnetic attraction without requiring batteries or electrical power. The broad 74mm footprint provides a substantial contact area for suitable steel surfaces, while the M30 thread allows the magnetic base to be integrated into industrial equipment, machinery and custom mounting systems.

This neodymium magnetic fixing plate is particularly useful where equipment needs to be installed, removed or repositioned without drilling or welding into the supporting steel surface, making it suitable for manufacturing, workshops, machinery, industrial fixtures, temporary installations and OEM applications.

Key Features

• 74mm diameter magnetic fixing plate
• M30 threaded connection
• High-performance Neodymium Iron Boron (NdFeB)
• Rare earth permanent magnetic system
• Broad magnetic mounting footprint
• Removable and repositionable attachment
• No drilling or welding into the supporting steel surface required
• M30 thread for compatible fixtures and components
• No electricity or external power required
• Suitable for compatible ferromagnetic iron and steel
• Ideal for industrial, engineering and equipment applications

Common Applications

• Industrial machinery
• Equipment mounting
• Manufacturing fixtures
• Removable brackets
• Workshop equipment
• Temporary installations
• Signage and displays
• Sensor mounting
• Lighting equipment
• Equipment accessories
• Custom engineering projects
• OEM magnetic mounting systems
• Repositionable fixtures

M30 Threaded Connection

The integrated M30 thread provides a substantial threaded interface for attaching compatible equipment and components to the magnetic base.

Depending on the application, compatible threaded components may include:

• Brackets
• Fixtures
• Handles
• Equipment mounts
• Custom fabricated components
• Machinery accessories
• Industrial assemblies

The mating component should use the correct M30 thread specification and provide appropriate thread engagement for the intended application.

Avoid overtightening threaded components or applying excessive mechanical leverage to the magnetic fixing plate.

74mm Diameter Magnetic Base

The 74mm diameter provides a broad magnetic contact area for mounting against suitable ferromagnetic steel.

For strongest practical magnetic attraction, the working face should make close, flat contact with a clean and sufficiently thick steel surface.

The larger contact footprint can be useful for industrial fixtures and equipment where a substantial magnetic mounting base is desirable. However, magnetic holding capacity should not be inferred from diameter alone.

Actual performance depends on the complete magnetic circuit and installation conditions.

Neodymium Rare Earth Magnetic Performance

This fixing plate incorporates Neodymium Iron Boron (NdFeB), a high-performance rare earth permanent magnetic material known for producing strong magnetic fields relative to its size.

Because neodymium is permanently magnetised, the fixing plate requires:

• No batteries
• No electrical wiring
• No external power supply
• No electrical switching

This makes it a convenient option for creating removable magnetic attachment points on suitable steel structures and equipment.

Removable Mounting Without Drilling or Welding

One of the primary benefits of a magnetic fixing plate is the ability to create an attachment point without permanently modifying the supporting steel surface.

Instead of drilling holes or welding brackets directly onto compatible steel, the magnetic base can be positioned where required and subsequently removed or relocated.

This can be useful for:

• Temporary equipment installations
• Frequently repositioned fixtures
• Prototype machinery
• Adjustable production equipment
• Maintenance accessories
• Temporary signage
• Sensors and monitoring equipment
• Custom industrial installations

The suitability of magnetic mounting should always be assessed according to the load and consequences of accidental detachment.

Magnetic Holding Performance

Magnetic holding performance depends on significantly more than the diameter of the fixing plate.

Important factors include:

• Steel thickness
• Steel composition
• Surface flatness
• Contact area
• Paint and protective coatings
• Rust or contamination
• Air gaps
• Load direction
• Weight of attached equipment
• Leverage
• Vibration
• Shock and movement

A specific pull force or Gauss rating has not been supplied for this magnetic fixing plate. Maximum holding capacity should therefore not be assumed from its 74mm diameter or neodymium construction.

Direct Pull vs Shear Loads

Magnetic attachment is typically strongest when the force acts perpendicular to the magnetic face, commonly referred to as direct pull.

When the fixing plate is mounted to a vertical steel surface and the attached equipment pulls downwards, the assembly experiences shear or sliding forces.

Practical holding performance under shear can be considerably different from direct-pull performance.

This is particularly important when attaching brackets or components to the M30 thread, as their length can create additional leverage or torque on the magnetic base.

Steel Surface Requirements

For effective magnetic mounting, the target surface must be suitably ferromagnetic.

Compatible materials generally include:

• Mild steel
• Iron
• Many magnetic steel components
• Suitable ferromagnetic machinery and structures

Materials such as aluminium, copper, brass, plastic and timber are not magnetically attracted. Many grades of stainless steel also provide little or no magnetic attraction.

Where surface material is uncertain, magnetic compatibility should be verified before installation.

Technical Specifications

• Product Type: Neodymium Magnetic Fixing Plate
• Alternative Names: Magnetic Mounting Plate, Threaded Magnetic Base, Rare Earth Fixing Magnet, Magnetic Equipment Mount
• Magnetic Material: Neodymium Iron Boron (NdFeB)
• Magnet Type: Rare Earth Permanent Magnet
• Diameter: 74mm
• Thread: M30
• Mounting Connection: Threaded
• Power Requirement: None
• Target Surface: Compatible ferromagnetic iron and steel
• Primary Function: Removable magnetic mounting, fixing and positioning
• Typical Applications: Machinery, industrial fixtures, equipment mounting and custom assemblies

Industrial and Engineering Applications

The combination of a 74mm magnetic base and M30 threaded connection makes this fixing plate suitable for integrating compatible components into industrial and engineering equipment.

Potential users include:

• Manufacturers
• Mechanical engineers
• Fabricators
• Maintenance teams
• Equipment builders
• Automation specialists
• Workshop operators
• OEM manufacturers

Magnetic mounting can be especially useful in applications where the position of equipment may need to change over time.

Installation Considerations

Before installing the magnetic fixing plate:

• Confirm the mounting surface is ferromagnetic
• Clean the magnetic face and target steel
• Maximise flat surface contact
• Confirm the mating component uses the correct M30 thread
• Ensure appropriate thread engagement
• Avoid overtightening
• Consider the direction of the applied load
• Account for leverage from attached components
• Consider vibration, impact and movement
• Inspect the installation periodically

Where accidental detachment could cause injury, equipment damage or another hazard, appropriate secondary mechanical retention should be incorporated.

Please Note

This magnetic fixing plate has a 74mm diameter and M30 threaded connection.

No specific overall height, thread depth or length, neodymium grade, coating, pull force, Gauss rating, dimensional tolerance or maximum operating temperature has been supplied and these specifications should not be assumed.

Actual magnetic holding performance depends on the target steel, steel thickness, contact area, surface condition, air gaps, mounting orientation, leverage and dynamic forces.

Neodymium magnetic material is inherently hard and brittle. Avoid uncontrolled impacts and do not drill, cut or machine the magnetic material.

This magnetic fixing plate should not be used for lifting people, hazardous overhead suspension or safety-critical load retention unless the complete system has been appropriately engineered, tested and rated.

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