A modular chamber dryer system, comprising - at least two separate, structurally identical, thermally insulated, closable chamber dryers (1.1) with parallel longitudinal axes or at least one common longitudinal axis for drying and/or curing the coatings, lacquers and/or adhesive layers on and/or in the respective at least one workpiece with thermal energy or thermal energy and actinic radiation (dual cure) and - at least two separate, structurally identical, thermally insulated, closable cooling chambers (1.2) with parallel longitudinal axes or at least one common longitudinal axis, each of which, viewed in the transport direction (1.3), is spatially and functionally directly connected by its inlet gate (1.2.1) adjacent to the outlet door (1.1.2) of each chamber dryer (1.1) and serves for the controlled cooling of the at least one coated, painted and/or bonded workpiece, - at least one transport system which serves to transport away the cooled workpieces discharged from the outlet gates (1.2.2) of the cooling chambers (1.2), - at least one transport system which serves to transport the workpieces through the inlet gates (1.1.1) into the chamber dryers (1.1), - a functional intermediate space between the mutually associated, parallel outer walls (1.1.3; 1.2.3) of the at least two chamber dryers (1.1) and the at least two cooling chambers (1.2) each with (i) devices (5.1; 5.2) for the thermodynamically controlled supply (5.1.1) and removal (5.2.1) of thermal energy to the at least two chamber dryers (1.1) or additionally with (ii) devices (5.3) for the controlled energy supply (5.3.1) to the sources (5.3.2) of actinic radiation in the at least two chamber dryers (1.1), (iii) devices (5.4; 5.5) for the separately controllable supply (5.4.1) of cooling gases (5.4.3) to the interior (1.2.4) of the at least two cooling chambers (1.2) and for the removal (5.5.1) of thermal energy from the at least two cooling chambers (1.2) as well as - a control unit for the thermodynamic control of the devices (5.1; 5.2; 5.3; 5.4; 5.5) for each of the at least two chamber dryers (1.1) and for each of the at least two cooling chambers (1.2) or a common control unit for the at least two chamber dryers (1.1) and the at least two cooling chambers (1.2). - at least two separate, structurally identical, thermally insulated, closable chamber dryers (1.1) with parallel longitudinal axes or at least one common longitudinal axis for drying and/or curing the coatings, lacquers and/or adhesive layers on and/or in the respective at least one workpiece with thermal energy or thermal energy and actinic radiation (dual cure) and - at least two separate, structurally identical, thermally insulated, closable cooling chambers (1.2) with parallel longitudinal axes or at least one common longitudinal axis, each of which, viewed in the transport direction (1.3), is spatially and functionally directly connected by its inlet gate (1.2.1) adjacent to the outlet door (1.1.2) of each chamber dryer (1.1) and serves for the controlled cooling of the at least one coated, painted and/or bonded workpiece, - at least one transport system which serves to transport away the cooled workpieces discharged from the outlet gates (1.2.2) of the cooling chambers (1.2), - at least one transport system which serves to transport the workpieces through the inlet gates (1.1.1) into the chamber dryers (1.1), - a functional intermediate space between the mutually associated, parallel outer walls (1.1.3; 1.2.3) of the at least two chamber dryers (1.1) and the at least two cooling chambers (1.2) each with (i) devices (5.1; 5.2) for the thermodynamically controlled supply (5.1.1) and removal (5.2.1) of thermal energy to the at least two chamber dryers (1.1) or additionally with (ii) devices (5.3) for the controlled energy supply (5.3.1) to the sources (5.3.2) of actinic radiation in the at least two chamber dryers (1.1), (iii) devices (5.4; 5.5) for the separately controllable supply (5.4.1) of cooling gases (5.4.3) to the interior (1.2.4) of the at least two cooling chambers (1.2) and for the removal (5.5.1) of thermal energy from the at least two cooling chambers (1.2) as well as (i) devices (5.1; 5.2) for the thermodynamically controlled supply (5.1.1) and removal (5.2.1) of thermal energy to the at least two chamber dryers (1.1) or additionally with (ii) devices (5.3) for the controlled energy supply (5.3.1) to the sources (5.3.2) of actinic radiation in the at least two chamber dryers (1.1), (iii) devices (5.4; 5.5) for the separately controllable supply (5.4.1) of cooling gases (5.4.3) to the interior (1.2.4) of the at least two cooling chambers (1.2) and for the removal (5.5.1) of thermal energy from the at least two cooling chambers (1.2) as well as - a control unit for the thermodynamic control of the devices (5.1; 5.2; 5.3; 5.4; 5.5) for each of the at least two chamber dryers (1.1) and for each of the at least two cooling chambers (1.2) or a common control unit for the at least two chamber dryers (1.1) and the at least two cooling chambers (1.2).