Electromagnet – 35mm | 20kg Breakaway Capacity | 12 Volts

The Electromagnet – 35mm | 20kg Breakaway Capacity | 12 Volts is a compact 12V electromagnetic holding magnet designed for applications requiring magnetic attraction that can be electrically activated and controlled. With a 35mm diameter, 12 Volt operating voltage and specified 20kg breakaway capacity, this electromagnet is suitable for automation, access control, machinery, fixtures and other electrically controlled magnetic holding applications.

Unlike a permanent magnet, an electromagnet generates its magnetic field when electrical current is applied. This allows the magnetic holding action to be incorporated into electrical and automated systems where controlled magnetic engagement is required.

Its compact 35mm format makes this 12V electromagnet useful for equipment and installations where available space is limited while still providing a specified breakaway capacity of up to 20kg under the applicable test conditions.

Key Features

• 35mm diameter electromagnet
• 12 Volt operating voltage
• 20kg breakaway capacity
• Electrically activated magnetic field
• Compact electromagnetic holding solution
• Magnetic attraction generated when powered
• Suitable for integration into electrical control systems
• Designed for compatible ferromagnetic iron and steel
• Suitable for automation and machinery applications
• Useful for holding, positioning and access-control systems

Common Applications

• Industrial automation
• Machinery and equipment
• Access-control systems
• Electrically controlled fixtures
• Holding and positioning systems
• Production equipment
• Manufacturing systems
• Automated assemblies
• Equipment doors and panels
• Prototyping
• Robotics and mechatronics
• Custom electromagnetic systems

12 Volt Electromagnet

This model is designed to operate from a 12 Volt electrical supply, making it suitable for compatible low-voltage control and automation systems.

When the correct electrical supply is applied, current passes through the electromagnet's internal coil and generates a magnetic field. This field creates attraction between the electromagnet and a suitable ferromagnetic target.

When incorporating the electromagnet into equipment, the electrical system should be designed according to the magnet's required operating conditions.

Only the 12V operating voltage has been supplied for this product. Current draw, electrical power consumption and other electrical characteristics should be confirmed before designing the associated power supply or control circuit.

How Does an Electromagnet Work?

An electromagnet uses electrical current flowing through a coil to generate a magnetic field.

This provides an important difference compared with permanent magnets: the magnetic field can be controlled electrically.

In a typical holding application:

1. The electromagnet is positioned against or close to a suitable ferromagnetic target.
2. The correct electrical supply is applied.
3. Current through the coil generates a magnetic field.
4. The target is magnetically attracted to the electromagnet.
5. The electrical system controls when the magnetic field is energised.

This controllability makes electromagnets particularly useful for automated and electrically operated equipment.

20kg Breakaway Capacity

This electromagnet has a specified 20kg breakaway capacity.

Breakaway capacity describes magnetic holding performance under defined test conditions and should not automatically be interpreted as a 20kg safe working load.

Real-world holding performance can be reduced by factors including:

• Steel thickness
• Steel composition
• Contact area
• Surface flatness
• Paint or coatings
• Rust or contamination
• Air gaps
• Load direction
• Vibration
• Movement
• Operating temperature
• Electrical supply conditions

Applications should therefore be designed with an appropriate safety margin rather than assuming the stated breakaway capacity represents the maximum load that can safely be supported.

Direct Contact for Maximum Holding Performance

Electromagnetic holding performance is generally greatest when the active magnetic surface makes close, flat contact with clean and sufficiently thick ferromagnetic steel.

Even a small air gap can significantly reduce magnetic attraction.

Potential sources of an air gap include:

• Paint
• Protective coatings
• Uneven surfaces
• Dirt or debris
• Rust
• Curved components
• Misalignment

Where maximum holding performance is required, the mating surfaces should be appropriately designed to provide good magnetic contact.

Direct Pull vs Shear Loads

The specified breakaway capacity will generally relate to a controlled test configuration and should not be assumed to represent performance in every mounting orientation.

Magnetic holding is typically strongest when force acts directly away from the magnetic face.

When the electromagnet is mounted vertically and the load acts downwards, the assembly experiences shear or sliding forces, which can result in significantly different practical holding performance.

Vibration, impact and dynamic movement can further reduce holding security.

Compact 35mm Design

With a 35mm diameter, this electromagnet provides a compact solution for integrating electrically controlled magnetic holding into equipment where installation space may be limited.

Potential uses include:

• Compact machinery
• Small fixtures
• Access panels
• Automated equipment
• Positioning systems
• Product assemblies
• Custom engineering projects

Installation requirements should be assessed according to the dimensions, electrical requirements and mechanical loads of the complete system.

Technical Specifications

• Product Type: Electromagnet / Electromagnetic Holding Magnet
• Alternative Names: 12V Electromagnet, Holding Electromagnet, Electric Holding Magnet, Electromagnetic Holding Device
• Diameter: 35mm
• Operating Voltage: 12 Volts
• Breakaway Capacity: 20kg
• Magnetic Operation: Electrically Activated
• Target Material: Compatible ferromagnetic iron and steel
• Primary Function: Electrically controlled magnetic holding and positioning
• Typical Applications: Automation, machinery, access control and equipment integration

Industrial Automation and Equipment Integration

The ability to control magnetic attraction electrically makes electromagnets useful for industrial and automated equipment.

A 12V electromagnet may be incorporated into systems requiring:

• Controlled holding
• Positioning
• Temporary retention
• Automated engagement
• Electrically operated fixtures
• Equipment access control

The associated electrical and mechanical system should be designed so that loss of electrical power does not create an unacceptable safety risk.

Heat and Operating Conditions

Electromagnetic coils can generate heat while energised. Operating temperature depends on factors including electrical supply, current, energisation duration, ambient temperature and heat dissipation.

A specific current rating, power consumption, duty cycle and maximum operating temperature have not been supplied for this product.

These specifications should be confirmed before continuous or extended energisation.

Do not assume the electromagnet is suitable for continuous-duty operation unless this has been verified for the specific product.

Electrical Integration

Before connecting the electromagnet, confirm that the electrical system provides the required 12 Volt supply and is appropriately designed for the magnet.

The installation should consider:

• Required current
• Power supply capacity
• Switching method
• Wiring
• Electrical protection
• Duty cycle
• Heat dissipation
• Control-system requirements

Where the electromagnet forms part of machinery or automated equipment, installation should be completed by an appropriately qualified person.

Please Note

The specified 20kg breakaway capacity is a test performance value and should not be interpreted as a 20kg safe working load or certified lifting capacity.

Actual magnetic holding performance depends on the target steel, contact conditions, load direction, electrical supply, temperature and installation.

Only the 12V operating voltage has been provided. Current draw, wattage, duty cycle, maximum operating temperature and other electrical specifications should be confirmed before installation.

This electromagnet should not be used for lifting people, hazardous overhead loads or safety-critical load retention unless the complete system has been specifically engineered, tested and appropriately rated for that purpose.

Electromagnets can become hot during operation. Allow appropriate ventilation and heat dissipation, and avoid touching the unit if it has reached an elevated temperature.

Magnetic fields may affect pacemakers, medical implants, magnetic storage media and sensitive electronic equipment.