PURPOSE: To provide a system for centrifugation which is useful for carrying out treatment of samples or for automating the treatment in the field of experiments and studies.

CONSTITUTION: The system for centrifugation of the samples is constituted by using a rotor and at least one carrier 1 which is arranged in the rotor and has plural uptakes 3 for the samples. The carrier 1 consists of plural elements 2 which have the respectively one uptakes 3 and are linked to parallel shafts by joints 5. When the carrier 1 exists on the rotor, the respective elements 2 turn to a curvilinear position at a circular route and the center of the circle on the axis of rotation of the rotor together with all the uptakes 3.