Plasma coating lance for internal coatings

A rotatable coating lance system for a plasma process, the lance system comprising:

• a stationary connection;
• a plasma shaft;
• a plasma neck;
• and
• a plasma head;
• the plasma shaft, which is rotatably coupled to the stationary connection for rotation relative to the stationary connection, comprises a first shaft end, a second shaft end and a longitudinal channel, which extends in an axial direction along a rotational axis of the rotating plasma shaft from the first shaft end to the second shaft end,
• the plasma neck comprising a shaft attachment and a head attachment and at least one neck channel, which extends from the shaft attachment to the head attachment and the shaft attachment is arranged at the second shaft end in such a way that the longitudinal channel opens into the at least one neck channel,
• the plasma head comprising a neck attachment, a plasma opening and at least one head channel, which extends from the neck attachment to the plasma opening and the neck attachment of the plasma head is arranged at the head attachment of the plasma neck in such a way that the at least one neck channel opens into the head channel,
• wherein the plasma shaft, the plasma neck and plasma head form a plasma channel having a course that deviates from the rotational axis in at least a part of the neck channel.