Question

What are magnetic keepers? Which material are they made up of?

Answer 1

1. A magnetic keeper is a bar made from magnetically soft iron or steel, which is placed across the poles of a permanent magnet to help preserve the strength of the magnet by completing the magnetic circuit. It is important for magnets that have low magnetic coercivity.
2. A magnetic keeper is also known as an armature.
3. Magnetic keepers are made up of soft iron or steel.