Elektromag Devices Pvt. Ltd Prabhadevi, Mumbai, Maharashtra

  Technical Advantages Superior Heat Dissipation Coils made of Anodised Aluminium Strip dissipate heat much faster since every single turn is itself part of the heat emitting exterior surface. In a conventional fibreglass or nomex covered and varnished wire coil, the dissipation of heat from the Coil centre is significantly obstructed. The poor thermal conductivity of the inter-turn insulation as well as air inclusions results in heat build-up that may ultimately destroy the Coil. Particularly in Oil Cooled Electromagnet Coils wound with Anodised Aluminium Strip, every single coil turn is directly exposed to oil cooling. On the other hand, in Wire Wound Coils, inside turns do not come into contact with the Oil. Hence the cooling is uneven, resulting in hot spots within the inner layers of the coil.

  European manufacturers have been using Anodised Aluminum Strip for Lifting Magnet and Magnetic Separators for over 50 years. Elektromag has been importing Anodised Aluminium Strip from Germany since 2006 and winding the Magnet Coils in India. Elektromag has already supplied a few hundred Electro Magnets with Anodised Aluminium Coils over the last 10 years. However, as the landed cost of imported Anodised Aluminium was very high, many customers, though aware of the advantages, were reluctant to pay the large price difference. Now, in April 2017, Elektromag has commissioned its own Continuous Coil Anodising Line at Vapi in Gujarat, India, with technology acquired from Germany, to enable the Magnets to be more affordable.