LV FOIL WINDING MACHINE (TFW 600 AUD) For LV Transformer Coils (Power Transformer, Inductors. Reactors and UPS Transformers) The machine is designed to wind with one or two COPPER OR ALUMINUM foils for the low voltage coils of Electric Transformers. A closed loop control system will control the tensioning system to produce the uniform stiff coils of Width ranging from 200mm to 600mm and Diameter up to 800mm. This system will achieve the high productivity.