Shielded Alnico Magnets. This is the main category in this series

• Permanent magnet made from an alloy of Aluminum, Nickel, and Cobalt, along with iron and sometimes other metals like copper or titanium.
• Known for their excellent heat resistance and corrosion resistance, making them ideal for high-temperature applications like electric motors, sensors, and speakers.
• While weaker than rare-earth magnets, Alnico magnets are more durable and stronger than ferrite magnets.