banner
Blog
What is electro permanent magnet?
Sep 17 , 2021

Electromagnet may not be common in daily life, but it has a wide range of uses. Many common items in our daily life need it. So how much do you know about electromagnets? Let us get to know it together today!


An electro Permanent electromagnet is an upgraded hybrid of electro magnet and Permanent electromagnet, in which the external magnetic field can be switched on or off by a pulse of electric current in a wire winding around part of the magnet, but requires no electricity to maintain the field. It’s composed of magnet materials, steel parts, coils and electronic control device.


How does an electro Permanent electromagnets work?

An Round Shape Permanent Electromagnet contains two magnetic materials, one magnetically hard (e.g. Nd-Fe-B) and one semi-hard (e.g. Alnico), capped at both ends with a magnetically soft material (e.g. Iron) and wrapped with a coil. A current pulse of one polarity magnetizes the materials together, increasing the external flow of magnetic flux. A current pulse of the opposite polarity reverses the magnetization of the semi-hard material, while leaving the hard material unchanged. This diverts some or all of the flux to circulate inside the device, reducing the external magnetic flux.


An Electromagnet Switche is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet. The Low Power Permanent Electromagnet with small size, easy to operate, IP65 waterproof level, wide range of applications.


The central principle governing electromagnetism or electromagnetic induction is Faraday’s law. We know that most of the circuits require a electromotive force or emf to drive current in the circuit but the source of emf is not always a battery. The flow of current is always associated with some magnetism. These two are always associated with each other.

The most important application of this is electromagnetic induction which is used to generate electricity.

We know that when number of magnetic field lines or magnetic density or more accurately magnetic flux is changed, an emf is generated. If the circuit is complete, this emf produces an electric current called as the induced current. This principle is used to generate electricity.


ZHONGSHAN LANDA SOLENOID CO.,LTD, We based in the Zhongshan City Guangdong, China, Which is an enterprise specializing in R&D-ing, producing and selling electromagnet and solenoid. Our Permanent electromagnets are very strong and versatile, and thus can be used as material handling/lifting magnets, workpiece holding magnetic chucks, magnetic clamping system for molds and dies, and magnetic grippers for automation. For years, we have been providing custom engineered magnets for a wide range of applications in industries including metal fabrication, shipbuilding, steel mill, automotive, medical industry, mechanical engineering, transport company, material store, etc.



Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Home

Products

About

contact