Our Alnico Disc magnets do not have a protective coating, making them more susceptible to chipping and weathering. These magnets have a high-temperature tolerance and can resist demagnetization up to 540°C.

However, exposure to temperatures above 540°C will result in a permanent loss of magnetism. Additionally, these magnets are axially magnetized and are often referred to as raw magnets because they do not have any casing around them. They are used in a variety of applications, ranging from small sensors in electronics to large separation systems in high-temperature environments.

The features of these magnets include temperature stability in high-temperature applications, with a maximum working temperature of approximately 1000°F. While Alnico bar magnets can be ground to size, they cannot be machined conventionally.

We offer grinding services to meet your specific specifications. Compared to ceramic magnets, Alnico bar magnets have high residual induction and energy production, but they have a lower coercive force, making them more susceptible to demagnetization.

Our Alnico magnets are available in Grade 5, and we can supply Grade 8 upon request. For a comparison of different Alnico grades, please refer to our properties chart. When it comes to grinding and tolerances, Alnico is a hard and brittle material, which makes it unsuitable for drilling, tapping, or conventional machining. Close tolerances can be achieved through abrasive grinding and cutting. We have in-house cutting and grinding capabilities to meet your application requirements.

ALNICO magnets are composed of aluminum, nickel, cobalt, copper, and iron, making them ideal for high-heat applications. The maximum working temperature ranges from 975°F to 1020°F. We offer various sizes of AlNiCo magnets according to customer requests and designs.

To assist you further, please contact us with the shape, size, tolerance, and grade of AlNiCo magnets you require.