Permanent Magnet Selection for Wind Turbine
Some factors need to be assessed in choosing the permanent magnet for wind turbine. So it’s critical to understand the characteristics of magnet materials, different sizes and shapes.
There are four classes of commercialized magnets used today. And each has its own magnetic properties. They are Alnico, Ceramic, Samarium Cobalt and Neodymium Iron Boron magnet.
Since NdFeB magnet is the strongest magnet at room temperature of all of the magnetic materials. And it offers high flux density operation and the ability to resist demagnetization. Generators in many of the newest turbines have started using neodymium magnets.
Ferrite magnet is the cheapest magnet with low magnetic force. So sometimes wind turbine manufacturer probably change ferite to rare earth magnets.
Both smco and alnico magnets can work under high temperature. But samarium cobalt has higher magnetic field.
Another factor that needs to be considered is the shape and size of the magnet. We provide permanent magnets for wind turbine generator with various shapes and sizes.
|Magnet Grade||42, N48, N50, N38SH, N42SH, N48SH to N35SHT|
|Magnet Coating||Ni-Cu-Ni triple plated, Zn, black epoxy coated etc.|
|Magnet Shape||segment, rectangular blocks, wedge, and trapezoid etc.|
|Regular Size|| 2″ x 1″ x 3/8″, 2″ x 1″ x 1/2″, 2″ x 1″ x 1″ , 4″ x 2″ x 1″, 240x80x40mm, 70x50x25mm, 90x35x30mm|
Rare Earth Magnet Manufacturer for Wind Turbine
China Magnets Source Material Limited is able to manufacture different kinds of high performance permanent magnets for wind turbine generator. Nowadays, the step-up gearboxes are being increasingly replaced with variable speed generators, increasing the demand for magnetic materials in wind turbines. So if you need rare earth magnets in wind turbines, please feel free to contact us.