Hot Steel Lifting – datasheet383.41KB
Handling hot material is a demanding application for a magnet. Steel turns non-magnetic at 1436 degrees F which is called the Curie point, however remains 100% magnetic up to approximately 1300 degrees F.
The major cause of failure of magnets in a hot application is the failure of the electrical insulation of the coil due to advanced thermal aging. Walker uses the highest rated insulation available that is rated at 220 degrees C. This does not mean that the insulation fails immediately when the temperature exceeds 220 degrees C but repeated or extended temperatures in excess of 220 degrees C will lead to insulation failure.
Walker has developed the Heatmaster series of hot material handling magnets to meet the needs of today’s steel producers to handle more material at higher temperature with increased efficiency.