Systems, methods, devices, and an apparatus for capping blood sample tubes after they are processed in an automated blood sample analysis processing system are provided. One aspect describes an automated blood sample tube capping assembly configured to automatically cap a plurality of sample tubes after they are processed in an automated blood sample analysis processing system.

A device for providing sorted closure elements in the form of crown caps, having a space for bulk storage of the caps, a lifting conveyor in the form of a belt entering the space and including, on an outer face, a plurality of cleats oriented transversely and spaced in order to define a recess between a lower cleat and an upper cleat, wherein each recess collects a plurality of the caps as the recess passes through the storage space and is capable of sorting unbalanced caps present inside the recess. The lower edge of the upper cleat has a convex section opposite the belt. The sorting of the unbalanced caps is configured to cooperate with the movement of the lifting conveyor to cause the incorrectly oriented caps to fall.

A re-stacker assembly used to stack container closures that are output by a can liner system includes at least one offloading assembly having a receiving portion, at least one loading device coupled to the offloading assembly, and a motion control system for detecting motion of the container closures and, in response to detecting such motion, driving the loading device to stack, or re-stack, the container closures in a predetermined manner.