Dyeing machine for dyeing hank yarns with dyes different from indigo, comprising: - at least one dyeing apparatus provided with: - a casing enclosing at least one dye compartment; and - at least one hermetically sealed hatch, which is provided on said casing and permits access to said dye compartment; - at least one support frame, which is mounted such as to rotate within said dye compartment and is designed to rotate, by means of at least one rotation pin, around a central axis of rotation which is horizontal and passing via said rotation pin; - at least one tank (44, 46), containing at least one dye bath; - at least one hydraulic circuit, which is connected hydraulically to said at least one tank (44, 46) and to said dyeing apparatus in order to supply said at least one dye bath from said at least one tank (44, 46) to said dye compartment and vice versa; and - a plurality of support means for the hank yarns, which means are mounted on said support frame and are accessible via said hatch, wherein both said casing and said support frame have a circular form in vertical transverse cross-section, i.e. a cross-section obtained along a plane orthogonal to said central axis of rotation, such that said casing has a cylindrical frontal wall and that said dye compartment has a cylindrical form, wherein said support means are disposed on said support frame according to a configuration which is circumferential with respect to said central axis of rotation and are placed in the vicinity of the inner surface of said cylindrical frontal wall, wherein each support frame is delimited by a pair of circular lateral walls (36, 38), which are flat, opposite each other and disposed orthogonally with respect to said central axis of rotation, and wherein each of said support means is constituted by a rack supporting a plurality of hank-carrier rods for the dyeing of said hank yarns, the dyeing machine being characterized in that said at least one hermetically sealed hatch is provided on said cylindrical frontal wall and has a width, measured along said central axis of rotation, which is equal to the distance between the two lateral walls (36, 38) of each support frame, wherein each hank-carrier rod is a standard rod having the same sizes as the rods of conventional cabinet dyeing machines and is interchangeable with the rods of said conventional cabinet dyeing machines, and wherein said dyeing apparatus and/or said at least one tank (44, 46) are provided with means for thermal regulation of said dye bath. - at least one dyeing apparatus provided with: - a casing enclosing at least one dye compartment; and - at least one hermetically sealed hatch, which is provided on said casing and permits access to said dye compartment; - a casing enclosing at least one dye compartment; and - at least one hermetically sealed hatch, which is provided on said casing and permits access to said dye compartment; - at least one support frame, which is mounted such as to rotate within said dye compartment and is designed to rotate, by means of at least one rotation pin, around a central axis of rotation which is horizontal and passing via said rotation pin; - at least one tank (44, 46), containing at least one dye bath; - at least one hydraulic circuit, which is connected hydraulically to said at least one tank (44, 46) and to said dyeing apparatus in order to supply said at least one dye bath from said at least one tank (44, 46) to said dye compartment and vice versa; and - a plurality of support means for the hank yarns, which means are mounted on said support frame and are accessible via said hatch,