The low-temperature centrifuge employs a special rotor design concept.

　　Low-temperature centrifuges are widely used for collecting microorganisms, cell debris, cells, large organelles, sulfate precipitates, and immunoprecipitates. They are extensively employed in modern biochemical laboratories worldwide. This centrifuge features microcomputer control, a touch panel, and a large-screen LCD display driven by a frequency-conversion motor that ensures smooth operation. It is equipped with a European-imported compressor unit, uses environmentally friendly refrigerants, offers 10 different speed-setting options, and provides 40 customizable operating modes. Parameters can be adjusted at any time during operation without the need to stop the machine. It also includes a jog function for short centrifugation runs and is compatible with a variety of rotor capacities and adapters.
　　Low-temperature centrifuges feature specially designed rotors and optical detection systems that enable continuous monitoring of the sedimentation process of substances in a centrifugal field, thereby allowing determination of their physical properties. A key advantage is that, with only a small sample volume, these centrifuges can quickly provide crucial information—enabling identification of the presence of biomacromolecules, estimation of their approximate concentrations, calculation of sedimentation coefficients, assessment of molecular size based on interfacial diffusion, detection of molecular heterogeneity and quantification of the proportions of individual components in mixtures, measurement of biomacromolecular molecular weights, and even detection of conformational changes in biomacromolecules. Low-temperature centrifuges are commonly used for applications such as blood separation and drug purification. For blood separation, centrifuges operating at 3,000 rpm are typically sufficient; however, low-speed, low-temperature centrifuges used for drug purification generally operate at speeds below 3,000 rpm. Moreover, to meet GMP standards and requirements in pharmaceutical production, these centrifuges are usually constructed from flat, stainless steel materials.
　　Low-temperature centrifuges are mainly divided into two types: low-temperature high-speed centrifuges and low-temperature low-speed centrifuges. Among these:
　　1. Low-temperature high-speed centrifuge: A low-temperature high-speed centrifuge is a mechanical device that uses centrifugal force to separate the components of mixtures consisting of liquids and solid particles or liquids and other liquids. It is primarily used to separate solid particles from liquids in suspensions or to separate two immiscible liquids with different densities in emulsions. It can also be used to remove liquids from wet solids. This type of centrifuge is widely employed in scientific research, education, and production sectors—including biology, chemistry, and medicine—and is particularly suitable for the rapid separation and synthesis of trace samples.
　　2. Low-temperature, low-speed centrifuge: The low-temperature, low-speed centrifuge is equipped with a frequency converter for smooth startup. Its separation factor is adjustable, and its structural design is optimized to effectively eliminate sanitary dead spots. All structural components feature smoothly transitioned curves, and their surfaces are polished. External structural parts, fasteners, and the rotor drum are all made of stainless steel. It employs antistatic belt drive, and its seals are made of either silicone rubber or fluororubber. This centrifuge meets closed-system and explosion-proof requirements, making it ideal for use in environments involving toxic, flammable, and explosive substances.
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