A lifting magnet is a type of permanent magnet capable of producing a stronger magnetic field than a normal magnet. This is because they are made of rare-earth metals and alloys such as ferrite. These lifting magnets find applications in various industries to lift metallic items or heavy objects. Certain electro-permanent magnets can be switched on and off. So, when the object picked by the magnet is transferred to the required place, one can switch off the magnet. If you require lifting items such as metallic plates, tubes, disks, and so on, using a lifting magnet is an extremely efficient and cost-effective solution.
Working Principles of Permanent Lifting Magnets
There is no doubt that lifting magnets need to be powerful with a good weight-bearing capacity. They are made of specific magnetic materials such as iron alloys with precise configurations to achieve all the required properties. Also, they require an on and off feature. A permanent lifting magnet has a block with the main body and a rotor. It has two magnets in the main body and a rotor each. These two magnets, when positioned in the same direction, produce magnetic flux that reaches the metallic objects to be lifted. When we change the direction of the magnet in the rotor, the load is released as there is no magnetic pull. An important point is, the adhesion of objects to the magnet should be absolutely close and tight, without any air trapped in between.
Permanent lifting magnets are different from electro-permanent lifting magnets. In the latter, an electric coil is wound around the magnet, which passes the electric current to switch on the magnet. They also use magnetic energy to lift objects. The electric current is only used to switch the magnet on, and is disconnected later.
Benefits of Permanent Lifting Magnets
Permanent lifting magnets use magnet materials as magnetic sources and don’t need any external power supply. So that they can be used anyplace.
Permanent lifting magnets are composed of magnet materials and steel parts only, they are durable with little maintenance.
Permanent lifting magnets can be simply operated by hand. The operation of permanent lifting magnets is very easy.
The costs of the permanent lifting magnets are the lowest among all types of lifting magnets.
