Coating device comprising a vacuum coating chamber for conducting vacuum coating processes, said vacuum coating chamber comprising: - one or more cooled chamber walls having an inner side and a cooled side , - protection shields being arranged in the interior of the chamber as one or more removable shielding plates , which cover at least part of the surface of the inner side of the one or more cooled chamber walls , wherein at least one removable shielding plate is placed forming a gap in relation to the surface of the inner side of the cooled chamber wall that is covered by said removable shielding plate , characterized in that : - thermal conductive means are arranged filling the gap in an extension corresponding to at least a portion of the total surface of the inner side of the cooled chamber wall that is covered by said removable shielding plate , wherein the thermal conductive means enable conductive heat transfer between said removable shielding plate and the respectively covered cooled chamber wall , and that the thermal conductive means comprise: - at least one shielding elevated plane arranged at a shielding contact surface A on the side of the shielding plate that is facing the inner side of the respectively covered cooled chamber wall , and/or at least one wall elevated plane arranged at a wall contact surface B on the inner side of the respectively covered cooled chamber wall , - thermal bridge material arranged filling the rest of the gap between the shielding contact surface A and the wall contact surface B, that is not occupied with the shielding elevated plane and/or with the wall elevated plane , forming a thermal interface for conductive heat transfer between the shielding contact surface (A) and the wall contact surface (B), and that the thermal bridge material is a carbon foil. - one or more cooled chamber walls having an inner side and a cooled side , - protection shields being arranged in the interior of the chamber as one or more removable shielding plates , which cover at least part of the surface of the inner side of the one or more cooled chamber walls , - thermal conductive means are arranged filling the gap in an extension corresponding to at least a portion of the total surface of the inner side of the cooled chamber wall that is covered by said removable shielding plate , wherein the thermal conductive means enable conductive heat transfer between said removable shielding plate and the respectively covered cooled chamber wall , - at least one shielding elevated plane arranged at a shielding contact surface A on the side of the shielding plate that is facing the inner side of the respectively covered cooled chamber wall , and/or at least one wall elevated plane arranged at a wall contact surface B on the inner side of the respectively covered cooled chamber wall , - thermal bridge material arranged filling the rest of the gap between the shielding contact surface A and the wall contact surface B, that is not occupied with the shielding elevated plane and/or with the wall elevated plane , forming a thermal interface for conductive heat transfer between the shielding contact surface (A) and the wall contact surface (B), <EOS>