For decades fossil fired convection driers/ovens have been applied in most processing lines.

Whether for flexo, gravure, heat set or screen – printing presses or wet-coating processing of adhesives, lacquering, infiltrations hotair driers have been the industry standard. Even though these driers build large, are not very dynamic and not very flexible for process variation adjust-ments – but low energy operation costs due to the low gas price to electricity price – ratio (mostly < 1/3 even down to sometimes < 1/5!).

So electro-thermal, like induction or infrared process systems have not been competitive. What makes