In response to customer requests Precision Econowind have wound many coils with shapes other than a more typical round inside diameter coil.
Many applications for electric coils require a custom shape either for electrical or for space-fitting reasons. Antennas, actuators, voice coil type motors, electrical components—there are thousands of applications that require other-than-round shapes.
Sometimes the odd shape is required to fit on a circuit board that is “packed” in a way that the straight sides of a rectangular coil will fit between components where the curve of a round coil will not.
In other cases the odd shape may be to allow a coil that, in round form, would have a circumference too large to fit in the necessary area but a shaped coil, with a perimeter equal to the round circumference, will allow the turns and wire size to stay the same and still equal the round coil.
Since the shape of a coil can affect the magnetic field the custom shape may be necessary to meet special electrical requirements of a device.
