AS 3025 DC Reverse Permanent Lifting Energized to Release Electromagnet
Product Description
| Brand | Dr. Solenoid | Model Number | AS 3025 |
| Rated Voltage (V) | DC 24V | Rated Power(W) | 14-18 W |
| Work Model | Holding Suction | Attraction Force | 200 GF |
| Stroke(mm) | Customized | Reset Time(s) | 1 S |
| Service Life | 500 Thousand Times | Certification | CE,ROHS,ISO9001, |
| Material | Carbon Steel House with Zinc Coating | Lead Wire Length(mm) | 200 |
| Install Style | screw | Tolerance of Dimension | +/- 0.1 MM |
| Water-proof | yes | Insulation Class | F 155 Degree |
| Hi-Pot Test | AC 600V 50/60Hz 2s | Resistance | 89 ohm |
| Working Temperature | -10°C-100°C | Duty Cycle | 1-100% |
| Thread Depth(mm) | / | Payment Term | TT, or LC At Sight |
| Sample Order | Yes | Warranty | 1 Year |
| MOQ | 1000 PCS | Supply Ability | 5000 pcs per Week |
| Delivery Time | 30 Days | Port of Loading | shenzhen |
Part 1 :Product Feautres:
- 20Kg Holding Force Dc 12V 24V Power Off Permanent Lifting Electromagnet
-Size: D30 x 25 mm
- Power: 12V or 24VDC, 60W
- Holding force> 20 kgs,
- Duty cycle: 10%
- Engerize to release and holding when power off
- Electroplating anti-corrosive
- Epoxy filled Waterproof
- Different models are available, holding force: 1kgs - 200kgs.
- OEM/ODM is welcomed.
Part 2 : The application of a Reverse permanent lifting electromagnets :
Scrap Metal Recycling
- In scrap yards, they can be used to pick up and move ferrous metal scraps. The ability to reverse the magnetic field allows for more precise control when dropping the scrap in a desired location. For example, it can easily release the scrap onto a conveyor belt or into a sorting bin by reversing the magnetic field.
Manufacturing and Assembly Lines
- They are useful in the handling of small ferromagnetic parts like screws, nuts, and metal components during the manufacturing process. The reverse function can be used to gently place the parts accurately onto a work surface or into a fixture without the need for manual handling, reducing the risk of damage to the parts and improving efficiency.
Heavy Equipment Maintenance
- When working with heavy machinery that contains many ferromagnetic parts, such as in the repair of construction equipment or industrial machinery, these electromagnets can help in the removal and replacement of parts. The reverse magnetic field helps in separating and installing components precisely.
Part 3 : How does the design of a reverse permanent lifting electromagnet differ from a standard one?
A standard lifting electromagnet typically consists of a coil of wire wound around a magnetic core. When an electric current is passed through the coil, it generates a magnetic field that allows it to attract and lift ferromagnetic objects.
For a reverse - permanent lifting electromagnet:
Magnetic Field Generation
- A standard electromagnet's magnetic field is solely generated by the electric current through the coil. In a reverse - permanent lifting electromagnet, there is a combination of a permanent magnet and an electromagnet. The permanent magnet provides a base magnetic field that is always present.
- The electromagnet part in the reverse design can be used to either enhance or reverse the magnetic field of the permanent magnet. For example, by changing the direction of the current in the coil, you can change the overall magnetic field direction relative to the field of the permanent magnet.
Part 4 : Structure
- The structure of a reverse - permanent lifting electromagnet may be more complex. It needs to accommodate the permanent magnet, usually made of materials like neodymium - iron - boron, in a way that allows the magnetic fields to interact effectively with the object to be lifted. There may be additional magnetic shielding or pole - shaping components to direct the magnetic field in the desired way.
- In a standard electromagnet, the focus is mainly on the coil and its connection to a power source to produce the lifting force. The reverse - permanent design might have a more intricate housing to hold both the permanent and the electro - magnetic components in the right positions and orientations.
Control System
- A standard lifting electromagnet is controlled mainly by turning the power to the coil on and off and adjusting the current level to control the lifting force. A reverse - permanent lifting electromagnet requires a more sophisticated control system.
- This system must be able to not only manage the power to the electromagnet part but also account for the presence of the permanent magnet's field. It might need to monitor and adjust the current to precisely reverse the magnetic field or fine - tune the combined magnetic field strength for different lifting requirements.
Product detail diagram





| Model No | Dimension | Install Thread | Holding Force |
Power | Min thickness of counter plate |
Weight |
| AS-1010 | Ø10*10 | M2_6 | 5N | 3.0W | 1mm | 6g |
| AS-1212 | Ø12*12 | M3_6 | 10N | 6.0W | 1mm | 8g |
| AS-1419 | Ø14*19 | M3_9 | 30N | 10W | 2mm | 12g |
| AS-1512 | Ø15*12 | M2_7 | 30N | 13W | 2mm | 12g |
| AS-1515 | Ø15*15 | M4_8 | 20N | 3.6 | 2mm | 15g |
| AS-2023 | Ø20*23 | M3_5 | 30N | 6.0W | 2.5mm | 37g |
| AS-2025 | Ø20*25 | M4_7 | 50N | 4.0W | 2.5mm | 43g |
| AS-2520 | Ø25*20 | M4_4 | 60N | 4.5W | 3mm | 75g |
| As-2521 | Ø25*21 | M4_11 | 120N | 7.5W | 3mm | 78g |
| AS-2522 | Ø25*22 | M4_12 | 100N | 7.3W | 3mm | 80g |
| AS-2529 | Ø25*29 | M4_14 | 120N | 7.0W | 3mm | 90g |
| AS-2821 | Ø28*21 | M4_14 | 150N | 8.0W | 3mm | 95g |
| AS-3025 | Ø30*25 | M4_14 | 200N | 14.4W | 3mm | 104g |
| AS-3229 | Ø32*29 | M5_19 | 180N | 14.8W | 3mm | 168g |
| AS-3333 | Ø33*33 | M4_14 | 250N | 5.5W | 3mm | 170g |
| AS-3425 | Ø34*25 | M5_16 | 300N | 15W | 3mm | 160g |
| AS-3529 | Ø35*29 | M5_19 | 300N | 28W | 3.5mm | 168g |
| AS-4025 | Ø40*25 | M6_18 | 200N | 10.5W | 3mm | 185g |
| AS-4029 | Ø40*29 | M6_18 | 400N | 16W | 4mm | 223g |
| AS-5029 | Ø50*29 | M8_19 | 500N | 9.6W | 5mm | 320g |
| AS-6329 | Ø63*29 | M8_18 | 960N | 33W | 6mm | 520g |
| AS-7045 | Ø70*45 | M8_26 | 1200N | 17.5W | 8mm | 900g |
| AS-8245 | Ø82*45 | M8_25 | 1950N | 43W | 10mm | 1400g |
| AS-15063 | Ø150*63 | M16_16 | 3500N | 60W | 15mm | 6500g |
Q: Are you a trading company or a solenoid manufacturer? And where is your factory location?
A: We are a professional solenoid and solenoid valve manufacturer. Our factory is located in Dongguan City, 2 hours from Hong Kong Airport by car.
Q: What kind of the service does your company offer ?
A:We are a professional solenoid and solenoid valves solution manfaucturers since 2007, our factory have metal stamping workshop, mould and dia workship under same room, CNC workshop, Testing laboratory, R & D team and assembling production line, we can offer you the one stop service from drawing design, working sample, moulding and validation , assembling and exporting service.
Q: How to choose a suitable electromagnet for your project?
A: Please let us the electromagnet parameter you need :
DC voltage(DC/AC) source, current, resistance,
Act form: when the energized to hold or the energized to release?
Holding force(Kg/N)?
Shape dimension (circular or rectangular),
Dimension limited (diameter and height).
Duty working cycle,
Electronic wire length and connector,
Waterproof? Yes/No need
Residual force(Kg/N)?
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For example: You can say I want purchase electromagnet as below:
Circular Permanent Electromagnet,
Action Form: Energized to release
Force: 40Kg/400N
Size: Ø40 x H29
Voltage: DC 12V
Power: 16 W
Duty Cycle: 10%(For each cycle: Max. Energized time 3s, de-energize
time 60s)
Lead Wire: Bottom edge out 25cm with XH2.54 male connector.
Waterproof: Yes.
Install Thread size: M6
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Q: How long is your delivery time?
A: Samples ready for delivery within 5 days if the goods are in stock, or in 10-15 days for customized product. It is according to quantity and the product we have tooling or not. Normally, you will get our samples in 7-10 days after payment.
Q: Can you accept the customized electromagnet?
A: Yes, you are welcome.
Q: Can I print my Brand/Logo on the product?
A: Yes, free of charge.
Q: Do you have CE approved?
A: Yes, we have CE and ROHS certificate






