A centrifuge is an electronic device that is commonly used to separate compounds from mixtures of different densities. It is used in various fields, from medicine to industrial chemistry. In health and diagnostics, centrifuges are operated in laboratories to prepare body samples for analysis. Meanwhile, in industrial chemistry, centrifuges are essential in identifying sediments and other residue present in fuels, oils, and water samples.
A refrigerated centrifuge is a type of centrifuge that comes with cooler temperature adjustment capacities. Unlike other centrifuge models, a refrigerated centrifuge allows samples to be spun under cooler conditions in order for specific sediments or component separation to arise.
What are the factors to consider when buying a refrigerated centrifuge?
- Temperature range – Not all centrifuges of this type are created equal. There are refrigerated centrifuges whose temperature levels can go as far down as -20ºC, while others are only down to -10ºC. Depending on most of the samples you prepare for testing, you may want to go for a centrifuge that matches their temperature requirements.
- Size and capacity – Some refrigerated centrifuges are benchtop, indicating they can be placed on tabletops because of their compact size. Floor-standing centrifuges are usually larger in footprint and have more room to spin several samples at the same time. If you are running a small clinic, perhaps a benchtop centrifuge would be ideal. However, if you are working in a bigger facility and accommodate a large number of samples regularly, a floor-standing centrifuge would be a better choice.
- Rotor speeds – Centrifuges have different rotor speeds and G-force. Your liquid samples likewise require specific speeds in order for their components to separate effectively.
- Slow start and cooling down processes – How long does it take for a refrigerated centrifuge cool down before it becomes ready to use? How long does it take for the device to fully stop running after a spin? You may also want to take these into consideration since it normally takes up to 5 minutes for a refrigerated centrifuge to be ready for use (pre-cooling).