QHMAGNET

What is Electro Permanent Magnet?

Electro permanent magnet technology is based on control of the electrical magnetic field lines of the permanent magnet material, which is expressed as with magnetic force (magnetized state) or non-magnetic force (demagnetized state). It is an innovative application technology that can attract or release material independently.
Magnetized state: Electromagnetic coil with instantaneous excitation current, controls the magnetic field state, switching polarity of the reversible magnetic material. Magnetic field covers the surface of the magnetic poles and bring strong adsorption force. As the magnetic field form a closed loop, there is no magnetic loss, heat generation, noise, or  energy consumption. 

Demagnetized state: During magnetized state, the electromagnetic coil once again instantaneous excitation current, the built-in circuit to change the reversible magnetic field, so that the magnetic field converged inside the permanent magnet, and the magnetic pole surface no longer have magnetic field, the material is released.

 

Electro Permanent Lifting magnet system is very safe, as it is not affected by power loss, no need for a UPS  battery auxiliary system. High energy from permanent magnetic materials provide lasting magnetic force, always ensure the safety of materials. Lifted material can only be demagnetized when it is landed, providing the highest level of security to end users.

Magnetic Lifter components 

1. Electro permanent magnet
The core part of magnetic force, direct contact and adsorption of the work piece

2. Control System (including sound and light indicating system)
Control magnetization/demagnetization, collection and processing of all signals

2.1 Controller for long distance (optional)
Mini control cabinet used in Crane Cab or other compact location

2.2 Remote Controller (optional)
Mini control cabinet used in Crane Cab or other compact location

3. Cable retracting device
Pull in and out reel to release and collect cable

 

Advantages of Electro Permanent lifting Magnet

Economical，Energy saving, Environment protection

Electric permanent magnet system only use electricity at the moment of magnetic charging and demagnetization, no need power during working process, no temperature rise, save electricity power more than 95% compared with electromagnet, big reduction of using cost.

Both lifting permanent magnet and control system weights are light, can reduce the lifting equipment load, improve lifting weight.

High security

The magnetism of Electro permanent lifting magnet is generated from 2 kind of permanent magnetic materials with different natures. Maximum magnetic force is up to 16kgf/cm .No need of electricity power during working, avoids the lifting magnet system magnetic power loss and the risk of lifted material fro falling down when a sudden power failure or accident like a damaged connection cable.. No attenuation of magnetic force with time, bringing great secure usage.

Easy to use

Electronic control operation only have charge, demagnetization buttons, easy to operate, only use 0.1-1s for magnetization and demagnetization, bringing operation efficiency. There is no wearing parts inside the permanent magnet system, no hydraulic oil, compressed air etc., no specific maintenance, only need to ensure that the surface is clean. 
After demagnetization, remaining magnetic force on the surface is almost zero.

Unique, Flexible Product Design

Permanent magnet adopts unique modular design, dual magnetic source technology, a unique product manufacturing process and internal structure.

Perfect functionality

The electronic control box function is a complete, easy to control device; supporting button control, long-distance control or remote control magnetization and demagnetization. Also with functions of dual magnetization cycle, magnetic switch, magnetization saturation detection, safety buttons and other protection and detection functions are available.

References