A stirring device includes a tray configured to hold an ink container filled with ink, a support member configured to support the tray, a rotary member configured to support the support member, and a pedestal configured to rotatably support the rotary member, in which the tray and the support member are engaged with each other by engagement portions provided on the tray and the support member (engagement cut-out portion, engagement convex portion).

A stirring device includes a tray configured to hold an ink container filled with ink, a support member configured to support the tray, a rotary member configured to support the support member, and a pedestal configured to rotatably support the rotary member, in which the tray and the support member are engaged with each other by engagement portions provided on the tray and the support member (engagement cut-out portion, engagement convex portion).

Auto sampler rack mounts and fluid vials that can be used with them are described. In some configurations, the rack mount can be configured to spin each fluid vial rotationally to assist in mixing or stirring of fluid in the vial and/or to maintain fluid homogeneity. If desired, the fluid vial may include one or more internal features to assist in the mixing or stirring.

Mixer systems 200 are provided. A representative mixer system 200 includes a power circuit 105 that powers the mixer apparatus 200; a motor 110 that is electrically coupled and powered by the power circuit 105; and a rotating structure 115 that is mechanically coupled to the motor 110, which rotates the rotating structure 115. The rotating structure 115 includes container chambers 230a,b that a container 240a,b is aligned therein, wherein the rotation of the container 240a,b mixes substances that are contained in the container 240a,b to have a homogeneous or heterogeneous mixture.

Some embodiments relate to a mixing device for fluid products contained in containers is described, comprising a plurality of cups configured to house the containers of the liquids to be mixed inside them and operated by means of a train of gears by motor means in so as to rotate simultaneously with a revolution motion around a vertical axis and with a rotation motion around an axis of the cups which is inclined by an angle with respect to the vertical axis, the mixing device also comprising a counterweight fixed to a support of the cups on the opposite side with respect to the vertical axis.