5V Electromagnet - 25 Kg Holding Force - P40/20

The 5V Electromagnet - 25Kg Holding Force - P40/20 is a powerful yet compact solution for your automation, robotics, and DIY applications. Designed to operate at 5V DC with a current draw of just 0.6A, this electromagnet delivers a holding force of up to 25Kg, making it suitable for secure holding, lifting, and locking tasks. Its actual pickup capacity is around 5Kg when used on flat, smooth ferromagnetic surfaces, ensuring reliable performance in practical applications. The magnet is activated simply by applying 5V power and instantly deactivates when power is cut, providing precise and controlled magnetic engagement. Compact and robust, this electromagnet is perfect for projects that demand safe, repeatable, and efficient magnetic force. Featured By RoboticsBD.

Product Images are shown for illustrative purposes only and may differ from the actual product.

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Features:

1. Strong Holding Power – Provides up to 25Kg holding force.

2. Safe & Controllable – Turns magnetic only when powered (4–6V).

3. Compact Size – P40/20 design suitable for space-limited applications.

4. Energy Efficient – Consumes only 0.6A at 5V DC.

5. Versatile Usage – Works in robotics, locks, automation, and DIY builds.

6. Quick Release – Instantly demagnetizes when power is cut.

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Applications:

1. Robotics & Automation – For gripping, lifting, and holding mechanisms.

2. Security Systems – Electromagnetic locks and access control.

3. DIY Engineering Projects – Magnetic clamping or experimental setups.

4. Industrial Automation – Sorting, holding, or lifting ferromagnetic materials.

5. Educational Demonstrations – Physics and engineering experiments.

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Please allow 5% measuring deviation due to manual measurement.

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Documentation:

Working Principle:

An electromagnet is simply a coil of wire.  It is usually wound around an iron core.  However, it could be wound around an air core, in which case it is called a solenoid.  When connected to a DC voltage or current source, the electromagnet becomes energized, creating a magnetic field just like a permanent magnet.   The magnetic flux density is proportional to the magnitude of the current flowing in the wire of the electromagnet.

The polarity of the electromagnet is determined by the direction of the current.  The north pole of the electromagnet is determined by using your right hand.  Wrap your fingers around the coil in the same direction as the current is flowing (conventional current flows from + to -).  The direction your thumb is pointing in the direction of the magnetic field so north would come out of the electromagnet in the direction of your thumb.  DC electromagnets are principally used to pick up or hold objects

We supply many varieties of electromagnets with a higher power as well as lower, original dimensions, etc to satisfy your unique requirements.

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Precaution:

Electromagnets must meet the following conditions to achieve maximum suction:

1. The object to be sucked must have good magnetic permeability.
2. Proper use of power supply, rated voltage.
3. The object to be sucked must be flat and clean.
4. The object to be sucked must be greater than or equal to the surface of the magnet( For example the magnet is 20 x 15 mm, so the surface area is S=r²π=10²π mm² so the object to be sucked must be greater than or equal to 10²π mm² )
5. The object to be sucked must be greater than 5mm. (If the thickness decreases, the suction decreases)
6. The object to be sucked must be close, the middle can’t be interspersed with objects or gaps
7. Suction means more than 5cm in thickness, surface roughness, the surface is greater than the cross-sectional area of the electromagnet and maximum suction completely fit together on an iron-based material.
8. Electromagnet in working condition electromagnetic conversion would produce a certain amount of heat, electricity more frequently the higher temperature, which is a normal phenomenon.

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Package Includes:

1 x 5V Electromagnet - 25 Kg Holding Force - P40/20

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