The present invention relates to a vacuum evaporation equipment (1) for continuously depositing a coating formed of a metal alloy including a main element and at least one additional element on a processing substrate (S), wherein the vacuum evaporation equipment is a vacuum evaporation chamber (2) and means for advancing the substrate through the vacuum deposition chamber, wherein the vacuum deposition facility further comprises:-a vapor jet coater (3),-the main element and the at least one additional element. An evaporation crucible (4) suitable for supplying said vapor to said vapor jet coater,-a recharging furnace suitable for supplying said main element in a molten state to said evaporation crucible and capable of maintaining a certain level of liquid in said evaporation crucible ( 9),-a supply unit adapted to be supplied with said at least one additional element in a solid state, irrespective of which is suitable for supplying said at least one additional element in a molten, solid or partially solid state to said evaporation crucible. (11) includes. In addition, the present invention relates to a method for continuously depositing a coating formed of a metal alloy comprising a main element and at least one additional element on a processing substrate.