Permanent Magnets Motors

The earth’s crust consists of ultra rare metals that offer select advantage in harnessing magnetic power. All the generators harness resistance against a force to create energy generally in the form of a coiled wire. Permanent magnets enable select new motors to create force. This is a new kind of magnetism in which rare earth metals like neodymium is used for creating magnetic force. Permanent magnets motors can power various machines from simple lawnmowers requiring low-horsepower to the industrial-sized power facilities.

The permanent magnets are so called due to their position within a motor system. Current is turned in to mechanical energy by an electrical motor but electrical force has to be continuously strengthened to facilitate the power movement. This kind of resistance is provided by the magnets in exactly the same way they pull metal: when the charge of electricity is compressed into a flow, the magnetic force challenges this flow to produce the force which results in pushing the gears in a motor. These motors use flow and compression to create mechanical energy just like a steam engine which utilizes the power of compressed hot water to create mechanical energy.

What are the benefits of using permanent magnets motors over conventional wire resistors? Both direct as well as alternating current is required by wires for creating mechanical energy. But only a basic charge of alternating current is required by magnets for creating energy. This minimizes the need for additional outlets and energy concerns. Similarly, the need for slip rings is reduced; as a result of this, magnets create less strain on machines which keeps the complete assembly in fixed formation. Due to less waste of energy and less strain, the monitoring and maintenance need for the motors is reduced to a great extent.

Thus the use of a magnetized motor offers various advantages. But there are drawbacks as well. There is consistency of flux in other metals due to the presence of magnet which implies that the air gaps also have a flux when they are vibrating stably with the metals. This can result in breaks and corrosion. The mechanical output is greatly reduced due to higher air gap flux. But the biggest drawback is the cost of the rare earth metals used for replacing magnets. The cost of select rare earth magnets is ten times higher than the cost of iron or lead electromagnet.


Since permanent magnets motors generate power, they are an ideal solution for many power supply and engineering problems. They generate more mechanical force compared to their electrical wire counterpart. Moreover, there is very little maintenance associated with permanent magnets motors than other motors. But its high cost makes it unsuitable to many power suppliers. Moreover, the complications of power control within a magnet make the power supply strong as well as difficult to maintain.