Magnetic Encoder Ring Specification Query System

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Devote all your time and energy to your magnetic encoder project, leave the encoder magnetic ring issues to us.

CCmagnetics has compiled and published specifications for 1,000 + magnetic rings. These rings require no mold or magnetization coil fees, saving you significant time and budget. Simply find the specifications you need, copy the corresponding SKU number, and contact us for assistance.

Query data through tables

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Query data through visualization tools

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When buying encoder magnetic rings, global buyers spend a lot of time looking for the right supplier. To get the best price, they need to make sure the supplier has the exact molds and magnetizing coils for the magnetic encoder rings they want. If not, no matter how much they buy, they may have to pay an additional $1,000 to $8,000 for molds and coils - there is no way to avoid it. So these buyers have to go to each supplier and explain everything from scratch. It's a hassle, but it's the only way to save money for the company.

Magnetitzing mold & coil

CCmagnetics solves this problem. They have created a magnetic ring database with more than 1,000+ encoder magnetic ring specifications. This saves buyers time and money. In just a few clicks, you can find the ring that meets your needs. Here are some frequently asked questions about this tool.

FAQs

What do the magnetic ring sizes in the table mean?

Dimensions of encoder magnets

O.D.: Outer Diameter
I.D.: Inner Diameter
Height: Thickness (Height)
Master-track: Number of poles on the primary track
Nonius-track: Number of poles on the secondary track. If there is no Nonius-track, it means this is a single-track magnetic ring.
Note: The number of poles refers to the total number of poles, not the number of pole pairs. For example, 20 poles indicate 10 pole pairs.

How many magnetization directions are there?

The main magnetization method are as follows. If you have any special requirements, please feel free to contact our staff.

magnetization method

What is the difference between magnetic ring materials?

Material Type	Typical Applications
Injection molded ferrite magnets	Commonly used in servo motor sensors, offering high precision and excellent shock resistance.
Bonded neodymium magnets	Often used in encoders with less than 50 poles or in motor magnets, providing a good balance of cost and performance.
Injection molded neodymium magnets	Widely used in servo motor sensors and motor magnets, offering better shock resistance compared to traditional sintered NdFeB magnets.
Ferrite magnets	Commonly found in Hall sensors. They offer the highest precision but have the weakest shock resistance, often requiring a metal carrier.
Neodymium magnets	If high surface magnetism is the primary goal, this is the preferred choice.
Copper metal ring/ injection molded neodymium magnets	Designed for improved concentricity and wear resistance. Often used in encoder magnets to ensure accurate positioning.
Copper metal ring/ injection molded ferrite magnets	Designed for improved concentricity and wear resistance. Often used in encoder magnets to ensure accurate positioning.
Sintered NdFeB magnets	Sintered NdFeB magnets are commonly used in motor magnets, offering very high surface magnetism.
Vulcanized rubber magnet material	This material is the most advanced for encoder magnets, offering high magnetic pole precision and excellent shock resistance, making it popular for robotic magnetic encoders.
NdFeB plastic coating	This coating improves the flexibility of NdFeB magnets.
Sintered neodymium magnets	If high surface magnetism is the primary goal, this is the preferred choice; however, it doesn't perform as well as hot-pressed magnets.
Rubber magnets	These magnets are soft and have relatively low magnetic pole precision.

How to understand surface magnetic field?

The surface magnetic field refers to the magnetic field on the surface of the magnetic ring. Usually, the Hall sensor can detect a signal with a field strength of 100 Gauss (or 10 millitesla) at a distance of 1 mm from the magnetic ring. Of course, some special applications may require different parameters.

How do I get the magnetic ring of interest?

Once you've found a magnetic ring of interest, please note its SKU and contact our team. If you require a drawing, please specify in your message.CCmagnetics ensures a customer response within 24 hours.

How can I obtain a complete product catalog for your encoder magnetic rings?

This is the download link for our encoder magnets catalog, but it does not include specific magnet specifications.

Please note that we do not provide a static catalog due to frequent updates to our magnetic ring database. To access detailed specifications, kindly visit the individual product pages within our website.