CM30 rotates the samples about the axis to achieve sample mixing. There are two kinds of mixing: one is the up-down action, when the sample is placed along the radial direction of the tray, the instrument mixes the samples from top to bottom; the other is the rotary mixing, and it mixes the sample rotationally. The rotary mixers are used for tissue culture, extraction, and determination of sedimentation rate (including chemical determination of various blood samples), such as: blood sample mixing, radioimmunoassay, glucose, in biological, chemical, animal and plant analysis, clinical experiments and many other aspects.