China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Encoder ring is an important part of the magnetic encoder, used to generate a magnetic field and with the sensor with the realization of position or angle measurement, today's article to introduce you to the encoder often use the magnetic ring of several materials.
Currently, the main ring magnet materials used in magnetic encoders are injection molded ferrite, flexible rubber magnet, bonded neodymium iron boron.
The picture below shows a dual code channel multi-pole ferrite magnet ring with rubber magnet material.
Among them, injection molded ferrite magnetic rings have strong resistance to mechanical shock and high durability, and are suitable for encoders with low to medium precision, especially in applications where shape and structural complexity are required. Rubber magnetic rings are soft and easy to process, able to adapt to the needs of bending or special shapes, with weaker magnetic properties, suitable for equipment that requires lightweight and flexible installation. Bonded NdFeB rings have the highest magnetic properties and are particularly suitable for high-precision, high-resolution encoders, widely used in high-end industrial and robotic applications.
Application Scenarios of Encoder Magnetic Ring
Industrial automation: for motor control, position feedback of automation equipment.
Robotics: Highly accurate position information in robot joints, movement control.
Medical devices: Encoder magnetic rings are used for precise angle measurement in rotating or moving parts of some medical devices.
Consumer electronics: e.g. game controllers, knobs for electronic audio equipment, encoder magnetic rings are used to enable detection of user input.
We are a professional supplier of magnets for motors, sensors and encoders, and we can provide a wide range of materials to choose from, including the above. Magnetic rings can be magnetized in axial and radial directions. Magnetic rings can be designed with up to 200+ poles to support complex magnetic field requirements and precise position detection. Single- and dual-channel configurations are available upon request to meet application-specific accuracy and resolution requirements. Provides magnetic strengths ranging from 0 to 100mT depending on the magnet material and number of poles selected.
Hot sale magnetic encoder multi-pole magnetic ring size;
Magnetic encoder multipole ring magnet 62 64 pole OD 34mm
Multipole double coil rubber magnetic ring for encoder D49x25x2mm
128 poles and 126-poles multipole magnetic encoder ring magnets
Articles about Encoder Magnets
Function and Application of Magnets in Encoders
Mounting & Installation of Encoder Magnetic Rings
How to check the number of magnetic poles on the encoder ring?