China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Injection-molded ferrite multi-pole magnetic rings are widely used in motors, sensors, encoders, and other fields. While their pricing structure is relatively straightforward, actual quotes vary significantly, primarily depending on two key factors: mold costs and unit price.
First, there are mold costs. For custom injection-molded ferrite multi-pole magnetic rings, production typically requires the creation of a new mold. Mold costs are closely tied to the product’s structural complexity, dimensional accuracy requirements, and the number of magnetic poles. Generally, the cost of creating a new mold ranges from 15,000 to 25,000 RMB. If a customer chooses a manufacturer that already has a mold for the specific magnetic ring, this cost can be avoided, significantly reducing the initial investment—making this approach particularly suitable for small- to medium-volume production or pilot projects.
Next is the unit price. The unit price of injection-molded ferrite rings ranges from 0.5 to 5 yuan, with significant variation. Key factors affecting the unit price include: size, number of poles (e.g., 8-pole, 16-pole, 32-pole, etc.), and magnetic performance requirements (remanence Br, coercivity Hc). Generally speaking, the larger the size, the greater the number of poles, and the higher the precision requirements, the higher the unit price will be.
Injection-molded ferrite multipole magnetic rings
Furthermore, the quantity ordered has a significant impact on price. Injection-molded magnets are typically produced on a large scale; the larger the order volume, the lower the unit cost. For projects involving batches of tens of thousands of units or more, the unit price can usually be kept relatively low; conversely, for small-batch orders, the unit price tends to be higher due to the need to spread mold and production costs across fewer units. Therefore, accurately estimating the required quantity early in the project is crucial for controlling overall costs.
In addition, there may be cases where a magnet supplier has molds for this size, but the magnetization fixture does not meet your requirements (e.g., magnetization direction, number of poles), which may require spending several thousand dollars to custom-build a magnetization fixture.
The above provides an overview of pricing for multi-pole ferrite magnetic rings used in injection molding. If you would like a price quote, please feel free to provide your magnet drawings.
Other articles on injection-molded ferrite magnets:
Sintered Ferrite Magnets VS Injection Molded Ferrite Magnets
What conditions should high quality injection molded ferrite have?
Magnetic performances strength of injection molded ferrite magnets