AMF MAGNETIC CLAMPING TECHNOLOGY, THE WINNING TECHNOLOGY! Based on years of development work and experience, AMF has been able to go beyond the typical limitations of obsolete electromechanical clamping systems, which are unsafe, unreliable, subject to overheating, and maintenance-intensive. The innovative electro permanent technology of AMF magnetic clamping technology guarantees great strength, total security and long-term reliability. The double magnetic cycle comprises a series of square poles in a chessboard arrangement. At the 4 sides of the poles there are static permanent magnets, while under the poles there are reversible magnets. The windings of the reversible magnets generate a brief, strong magnetic field that is able to reverse the polarity of this type of magnet in a fraction of a second.