Magnetic chucks are made with Coaniax, Ferrite or Neodymium magnets. The electro-permanent kind guarantee magnetic clamping even in the event of a power failure.
The holding force can be set up to a maximum value of 120 N/cm2. Magnetic clamping is indispensible for grinding, milling, EDM and other operations.
The Calamit technicians can suggest a best suited model for your specific needs.