Abstract: A container mixer comprising a loadbearing device, a mixer arm (5) and a docking unit (6) for holding a container (7). The mixer arm (5) is mounted on the rotatable part of a first rotary device (10) having a horizontal first axis of rotation (14), whose fixed part is held on a loadbearing device, and the docking unit (6) is mounted on the rotatable part of a second rotary device (11) having a second axis of rotation (15), whose fixed part is held on the mixer arm (5). The fixed part of the first rotary device (10) can also be mounted on a lifting carriage (4) which is vertically displaceably mounted on the loadbearing device. The axes of rotation of the first and second rotary device (10, 11) can be arranged in such a way that their axes of rotation (14, 15) intersect within the container (7).