In addition to understanding vibration reduction in high-speed refrigerated centrifuges, it’s also important to understand their complementary relationship with medical centrifuges.

　　 High-speed refrigerated centrifuge Developed for hospital clinical laboratories and research institutions, this centrifuge boasts advantages such as stability, ultra-low noise levels, and smooth operation. It is a high-quality product ideal for blood analysis, immunological testing, and research laboratories in hospital clinical labs and other scientific research facilities. High-speed refrigerated centrifuges are primarily used to separate solid particles from liquids in suspensions, or to separate two immiscible liquids of different densities from an emulsion.

　　High-speed refrigerated centrifuges can be used to remove liquids from wet solids—for example, by using a washing machine to spin-dry wet clothes. Special high-speed tubular separators can even separate gas mixtures of different densities. Leveraging the fact that solid particles of varying densities or particle sizes settle at different rates in a liquid, some high-speed refrigerated centrifuges can also classify solid particles according to their density or particle size. The vibration level of a high-speed refrigerated centrifuge is one of the key indicators for assessing its performance quality. Typically, vibration reduction in high-speed refrigerated centrifuges can be achieved through two main approaches: active vibration reduction and passive vibration reduction. Active vibration reduction involves designing the centrifuge in such a way that its operating speed is kept well away from the critical speeds of the rotating system. Additionally, dynamic balancing must be performed during rotor manufacturing. Passive vibration reduction, on the other hand, uses various types of vibration dampers to isolate potential vibrations from the machine frame and foundation.

　　High-speed refrigerated centrifuges must be protected against overspeeding to avoid shortening the machine’s service life. After use, the machine should be cleaned and kept thoroughly maintained. When a suspension containing fine particles is left undisturbed, the suspended particles gradually settle downward under the influence of the gravitational field. The heavier the particles, the faster they sink; conversely, particles with lower density than the liquid will float. The settling velocity of particles in a gravitational field depends on the particle’s size, shape, and density, as well as on the strength of the gravitational field and the viscosity of the liquid.

　　High-speed refrigerated centrifuges can handle particles the size of red blood cells—only a few micrometers in diameter—which can be observed under normal gravity. Moreover, as substances settle in a medium, they are accompanied by a phenomenon known as diffusion. Diffusion is an unconditional process, and its rate is inversely proportional to the mass of the substance: the smaller the particle, the more pronounced the diffusion. Dissolution, on the other hand, is relative, conditional, and subject to external forces.

　　High-speed refrigerated centrifuges and medical centrifuges employ complementary strategies that differ yet complement each other within the same field:

　　The amount of sedimentation is directly proportional to the weight of the object. The larger the particles, the faster the sedimentation. For particles smaller than a few micrometers—such as viruses or proteins—these particles remain in a colloidal or semi-colloidal state in solution, and their sedimentation process cannot be observed simply by gravity alone. This is because the smaller the particles, the slower their sedimentation and the more pronounced their diffusion becomes. Therefore, it is necessary to use a centrifuge to generate a strong centrifugal force, thereby forcing these particles to overcome diffusion and initiate sedimentation movement. Centrifugation utilizes the powerful centrifugal force generated by the high-speed rotation of the centrifuge rotor to accelerate the sedimentation rate of particles in a liquid, enabling the separation of particles with different sedimentation coefficients and differing buoyant densities in the sample.

　　Rubber vibration dampers generally meet the vibration-damping requirements of high-speed refrigerated centrifuges. Given a fixed damper structure, the higher the rubber hardness, the higher the system's critical rotational speed will be. If the hardness of the damper is too low, its strength will fail to meet the requirements and it will easily get damaged.

　　High-speed refrigerated centrifuges are widely used in industries such as chemical engineering, petroleum, food processing, pharmaceuticals, mineral processing, coal mining, water treatment, and shipbuilding. In terms of cooling capacity, the share of high-speed refrigerated centrifuge products in total sales has been increasing.

　　Before starting the high-speed refrigerated centrifuge, first disconnect the power supply and release the centrifuge’s brake. You can manually rotate the rotor to check for any binding or jamming. Also, inspect other parts for looseness or unusual conditions. Once the power is connected, start the machine by turning it on in the clockwise direction. Typically, after a high-speed refrigerated centrifuge is delivered to the site, it should be run empty for about 3 hours. If no abnormalities are detected during this period, the machine is ready for operation.

　　In a high-speed refrigerated centrifuge, the movement velocity of particles depends on their size, shape, and density, as well as the strength of the gravitational field and the viscosity of the liquid. Under normal gravity, red blood cells with diameters of just a few micrometers can be observed. Moreover, when substances settle in a medium, diffusion occurs simultaneously. Diffusion is an unconditioned process that is inversely proportional to the mass of the substance. The smaller the particles, the more pronounced the diffusion effect. Sedimentation, by contrast, is relative and conditional; only external forces can cause particles to move. Sedimentation is directly proportional to the weight of the object—thus, the larger the particles, the faster they settle. For particles smaller than a few micrometers—such as viruses or proteins—when they form colloidal or semi-colloidal states in solution, it becomes impossible to observe the sedimentation process solely by gravity.

　　Because the smaller the particles, the slower their sedimentation and the more severe their diffusion. Therefore, it is necessary to use a high-speed refrigerated centrifuge to generate strong centrifugal force, thereby forcing these particles to overcome diffusion and undergo sedimentation. Centrifugation is a powerful centrifugal force generated by the high-speed rotation of a centrifuge rotor; it accelerates the sedimentation rate of particles in a liquid and separates samples with different sedimentation coefficients and buoyant densities.