The rotary evaporator, also known as a rotovap, is a widely used laboratory instrument in the chemical, pharmaceutical, and food industries. As a standard evaporation and purification tool, it enables the rapid evaporation of liquid samples under vacuum conditions, making it possible to concentrate, crystallize, or dry compounds efficiently.
So, what exactly are rotary vacuum evaporators used for? Let’s explore the main applications:
In organic synthesis and research laboratories, rotary evaporators are essential for removing reaction solvents and concentrating solutions or extracts. By efficiently evaporating solvents, they allow scientists to isolate and purify target compounds.
For advanced chemical experiments, the laboratory rotary evaporator offers precise control and stability, ensuring accurate results.2. Medicine Development
In pharmaceutical research and development, rotary evaporators are used to remove solvents from drug formulations and concentrate medicinal solutions. This step is crucial for further testing, formulation analysis, and drug stability studies.If you require large-scale applications, the 50L rotary evaporator is designed for pilot production and pharmaceutical testing.
Rotary evaporators also play a role in the food and beverage industry. They can be used to concentrate juices, extract flavors, or isolate natural pigments. This process helps manufacturers retain product quality while reducing volume for storage and transportation.
A 2L–10L rotary evaporator is especially suitable for food labs and small-scale flavor extraction.
In environmental science, rotary evaporators are commonly applied in water sample concentration and pretreatment. By removing solvents, they make subsequent analysis (such as pollutant detection or heavy metal testing) more efficient and accurate.

To achieve optimal performance, laboratory rotary evaporators can be equipped with:
Circulating water multi-purpose vacuum pump
Diaphragm vacuum pump
Circulating cooler
Constant temperature circulator
Low-temperature cooling circulating pump
Integrating these accessories ensures stable operation, higher efficiency, and extended instrument lifespan.
The rotary evaporator is a versatile laboratory tool with applications ranging from organic chemistry and drug research to food processing and environmental analysis. Whether for concentrating solutions, removing solvents, or enhancing sample purity, it remains an indispensable piece of laboratory equipment.
For more details and product specifications, please explore our full range of Nanbei Instruments rotary evaporators.