Foil Wound Electromagnets

A super-thin insulation layer between foil windings allows fill factors (compactness) unavailable from wire or hollow-tube windings. Foil also spreads current more evenly throughout each coil.

Unlike wire wound, foil coils can be cut or sculpted to accommodate special mounting or access needs. The current path is largely undisturbed, and the impact on the magnetic field is minimal.

Construction in "coil sets" (rather than a single large coil) lowers build costs and enhances field accuracy and predictability.

Copper, aluminum or combination windings enable customised coil sizes and power to weight ratios.

Foil construction has high thermal conductance, enabling cooling to occur in layers between windings.