An apparatus for producing a mixture of various bulk materials, comprising a weighing device that is carried by the framework of the apparatus. A weighing container is suspended or supported by the weighing device, and is adapted to receive a desired mixture of bulk material components from supply containers via an upper inlet. A mixing device extends from above into the weighing container and is driven by motor-transmission means that is mounted on the framework and is gravimetrically separate from the weighing container. The mixing device is permanently suspended on the motor-transmission means free of the weighing container.