In view of all the Technical Factors, it should be apparent that, under normal working conditions, Elektromag Magnets with ELEKTROFOL Anodised Aluminium Coils will have the longest life compared to any other winding material.
The Magnets will be much cheaper and lighter than Copper wound Magnets. The lighter weight will result in less wear and tear on crane components. They may be a little more expensive than Magnets with conventional Aluminium Coils, but their much longer life will easily compensate for the premium paid over the lifetime of the product.