How to choose a laboratory ice machine, part one: Selection of ice machine types
Release Date:
2025-05-16 14:55
How to choose a laboratory ice machine, Part 1: Selection of ice machine types
Article source: Xiamen Guoyi Scientific Instruments Co., Ltd.
Ice machine principle:
An ice machine is a refrigeration mechanical equipment that cools water through an evaporator using a refrigeration system refrigerant to produce ice. According to the different principles of the evaporator and the ice formation process, the shape of the ice produced also varies. People generally classify ice machines based on the ice shape into granular ice machines, flake ice machines, plate ice machines, tube ice machines, shell ice machines, and so on.
Classification of ice machines:
Classified by ice shape: Scaled flake ice machines, snowflake ice machines, bar ice machines, plate ice machines, block ice machines (can be divided into edible small block ice machines and industrial large block ice machines), ice particle machines, granular ice machines, tube ice machines, bullet ice machines.
Selection of laboratory ice machine types:
When we usually dine out, we often see businesses adding ice cubes to drinks, sometimes square, sometimes hollow. Also, when buying seafood at the market, we might see a layer of ice underneath. What's the difference? How should we choose an ice machine when carrying out laboratory work?
Laboratory ice machines are primarily used in life science experiments to provide an ice bath environment for samples, preventing degradation or spoilage of samples (such as nucleic acids, proteins) due to temperature changes, thereby ensuring the accuracy and validity of experimental results. In most cases, our samples are placed in containers such as EP tubes, centrifuge tubes, PCR tubes, etc., and then the sample tubes are inserted into an ice bath to maintain temperature through contact. Since the sample and ice cannot directly contact, but must transmit through the tube wall, the contact area between the tube wall and the ice bath is crucial for the ice bath effect. To better protect the samples, the contact area between the tube wall and the ice bath should be maximized as much as possible.
Considering the above, laboratory ice machines generally opt for snowflake ice machines. This type of ice machine produces snowflake-shaped crushed ice, which, due to its small particles, can make close contact with the tube wall, ensuring the ice bath effect.
Regarding specific ice discharge requirements, one more point is very important: the snowflake ice produced should have a water content of 15-25%. This can greatly improve the contact effect between the ice bath and the tube wall.
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