In biological science, especially in the field of biochemistry and molecular biology research, it has been widely used, and each biochemistry and molecular biology laboratory must prepare various types of centrifuges. Centrifugal technology is mainly used for the separation and preparation of various biological samples. The biological sample suspension is placed in a centrifuge tube under high-speed rotation. Due to the huge centrifugal force, the suspended tiny particles (such as organelles, biological macromolecules, etc. are precipitated, etc.) ) settles at a certain speed so as to be separated from the solution.