The electromagnetic chuck is composed of a panel, magnetic steel, base, clips, etc. The suction force can reach 12-15kg. The principle is to generate magnetic force by energizing the internal coil, and through the magnetic panel, the workpiece in contact with the surface of the panel will be tightly sucked. , the coil is powered off and the magnetic force disappears to achieve demagnetization and remove the workpiece.
link:https://www.kinocranes.sg/electric-hoist/electric-hoist-by-capacity/2000mm-diameter-electric-magnet.html