Five types of magnets are commonly applied to magnetic encoders, ranked by popularity from highest to lowest:

1.Rubber Ring Magnet: This type of magnetic ring is typically available in standard products with single and double tracks, and multiple-track versions can be customized upon request. It offers good impact resistance, stable pole orientation, and high accuracy. The downside is that the mold cost is relatively high, and mass production is required to recover the investment if customization is needed. The applicable temperature range is -20°C to 50°C.

2.Ferrite Multi-pole Magnetic Ring: This type of magnetic ring is widely used but fragile, typically requiring collaboration with a metal bracket. Its advantage is that it offers good quality at a low price. The working temperature range is -20°C to 200°C.

3.Neodymium Multi-pole Magnetic Ring: This type of magnetic ring is often plated with nickel, allowing for customization even with a small quantity. It has good impact resistance and is less likely to break. The working temperature range is -40°C to 200°C.

4.Magnetic Scale: Made from rubber neodymium iron boron magnetic material, this type of magnetic ring is softer and more foldable than the rubber magnetic ring. It has no length limit and is typically divided into single, double, and multiple tracks. It is widely used in machine tools and is suitable for normal temperature environments.

5.Customized Odd-Shaped Neodymium Magnet: This type of magnet can be customized in shape. It is suitable for simple equipment with a small number of poles, with a maximum of 32 poles. This magnet is only suitable for simple mechanical applications.

Leave a Reply