China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Starter motor is an internal combustion engine used to start the engine a device, its main role is to provide the initial rotating torque when the engine is started, starter motor is usually used in the magnet is generally a permanent magnet or electromagnet, this article is mainly said to be the permanent magnet.
For the permanent magnets used in starter motors, usually made of ceramic ferrite, these magnets have the following characteristics.
Good resistance to oxidation and corrosion
Ferrite permanent magnets usually contain an oxide protective layer, which can better resist corrosive environments such as humidity, acid rain, etc., so as to ensure long-term reliable work, which is very important for starter motors.
Certain high temperature resistance
Ferrite magnets in a certain temperature range (up to about 250 degrees Celsius), the magnetic properties do not change much, can meet the general operating temperature requirements of the starter.
Starter Motor Arc Segmented Permanent Ferrite Magnets
Acceptable magnetic properties
Although ferrite magnets have general magnetic properties, they can meet the requirements in starter motors, generally based on various anisotropic, Y30 grade or above.
Lower production cost
Compared with other high-performance permanent magnets, the production cost of ferrite permanent magnets is low, which is conducive to reducing the overall cost of starter motors.
In addition to ferrite magnets, a small number of rare-earth permanent magnets such as NdFeB magnets are used as starter magnets, which have more outstanding magnetic properties, but the cost is also relatively high.
Shape of starter motor magnet
The common shapes of starter magnets are arc, ring and rectangle.
This is the introduction about the starter motor magnet, which plays a vital role in the whole starting process, if the magnet is damaged, it may cause the engine not to start smoothly.
Starter Motor Magnet Selection
Starter motor arc ferrite magnet L 40mm x W 52mm x T 7.1mm
Car starter motor magnet arc shape y30 [ Price custom supply ]