The P40/20 DC12V Electric Sucker Electromagnet 30KG is a compact circular lifting electromagnet designed to generate strong magnetic attraction when supplied with 12V DC power. BDTronics offers this 40mm diameter electric lifting magnet for robotics, automation, magnetic fixtures, industrial mechanisms, DIY projects, and other applications requiring electrically controlled magnetic holding or lifting.

The electromagnet uses a copper coil and iron magnetic core to produce magnetic force when energized. When the 12V DC supply is switched off, the magnetic force is released, allowing the attached ferromagnetic object to be separated. Its compact 40 × 20mm form factor and flat magnetic contact surface make it suitable for space-constrained mechanical and automation systems.

Features:

• 12V DC operation for easy integration with DC power systems and control circuits

• Up to 30KG lifting capacity under suitable magnetic contact conditions

• P40/20 circular sucker electromagnet with approximately 40mm diameter and 20mm length

• Strong magnetic attraction for suitable ferromagnetic materials

• Copper coil and iron-core construction

• Smooth, flat magnetic contact surface for improved attraction when properly matched with the target

• Electromagnet can be switched ON and OFF electrically

• Designed for applications requiring controlled magnetic lifting, holding, clamping, or positioning

• Low residual magnetism after power is removed according to the supplied specification

• Compact construction for robotics, automation, machinery, and DIY equipment

• IP68 rating according to the supplied product specification

• CE certified according to the supplied specification

• Suitable for ambient temperatures up to approximately 130°C, subject to actual operating conditions

Specifications:

Working Principle:

An electromagnet uses an electrically energized coil to create a magnetic field around an iron core. When 12V DC power is applied to the P40/20 coil, the generated magnetic field attracts suitable ferromagnetic materials such as iron and certain types of steel.

The magnetic force depends on several factors, including the electrical input, air gap, target material, contact area, surface condition, target thickness, and alignment. When the power is removed, the magnetic field decreases and the object can be released.

The direction of current through the coil determines the magnetic field polarity. For DC switching applications, the electromagnet can be controlled using a suitable relay, MOSFET, transistor driver, PLC output, microcontroller interface, or other properly rated switching circuit.

Applications:

• Industrial automation equipment

• Robotic lifting and handling mechanisms

• Pick-and-place systems

• Electromagnetic grippers

• Metal part handling

• CNC and machinery fixtures

• Welding jigs and magnetic clamps

• Automated locking and holding mechanisms

• Conveyor-based metal handling systems

• Sorting and positioning mechanisms

• Arduino and microcontroller projects

• PLC-controlled automation

• DIY lifting and clamping systems

• Educational robotics and engineering projects

• Electromagnetic door or machine mechanisms

Installation and Usage Guidelines:

For maximum magnetic attraction, the electromagnet should make direct and firm contact with a suitable ferromagnetic target.

1. Use a properly regulated 12V DC power supply suitable for the electromagnet's actual current requirement.

2. Connect the electromagnet through an appropriately rated switching device when automatic ON/OFF control is required.

3. The target material should have good magnetic permeability.

4. Keep the contact surface clean and flat to minimize the air gap.

5. Avoid paint, dirt, plastic, excessive surface roughness, or other materials between the magnet and target.

6. A larger and sufficiently thick ferromagnetic target generally provides better magnetic coupling.

7. The rated lifting capacity should not be treated as a guaranteed payload under every condition. Actual lifting force can be significantly lower when there is an air gap, uneven surface, thin material, or unsuitable metal.

8. Electromagnets generate heat during operation. Continuous energization and frequent switching can increase coil temperature.

9. For lifting applications, use an appropriate safety factor and do not rely on the stated maximum holding force for overhead or safety-critical loads.

Important Notes:

The supplied product information contains conflicting specifications from different source sections, including references to 5V/25KG/0.6A and 12V/30KG versions. This product listing is specifically for the P40/20 DC12V 30KG variant, so the 5V/25KG electrical specifications should not be applied to this 12V version.

Actual magnetic lifting force depends strongly on the target material, thickness, flatness, contact area, surface condition, and air gap. The stated 30KG capacity should therefore be considered a maximum rated value under suitable magnetic conditions rather than a guaranteed lifting load in all applications.

Package Includes:

• 1 × P40/20 DC12V Electric Sucker Electromagnet 30KG

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