In the world of laboratory equipment, precision, efficiency, and versatility are paramount. One such indispensable tool that checks all these boxes is the 20 liter rotovap. In this comprehensive guide, we'll delve into the intricacies of this remarkable piece of equipment, exploring its features, applications, benefits, and more.

Understanding the Small Rotary Evaporator

A small rotary evaporator machine, often referred to as a "rotovap," is a sophisticated piece of equipment designed for the precise separation of solvents from samples through evaporation and condensation. Its compact size and robust design make it a staple in laboratories across the globe.
Small Rotary Evaporator Machine

How It Works

The heart of a small rotary evaporator lies in its rotating flask, vapor duct, condenser, and collection flask. The process begins with the evaporation of the solvent in the sample flask, followed by the condensation of the vapor in the condenser. This ingenious design allows for efficient solvent recovery and sample concentration.

Key Components

To fully appreciate the capabilities of a small rotary evaporator, it's essential to understand its key components, such as the heating bath, vacuum system, and cooling system. Each element plays a critical role in achieving precise results.
Key Components

Applications Across Industries


Small rotary evaporator machines find extensive use in the field of chemistry. They are indispensable for tasks like solvent removal, fractional distillation, and sample concentration, making them a versatile tool for researchers and chemists.


In the pharmaceutical industry, precision and purity are paramount. Small rotary evaporators play a pivotal role in drug development, ensuring the isolation of pure compounds and the removal of unwanted solvents.

Food and Beverage

From flavor extraction to alcohol distillation, the food and beverage industry benefits from the precise capabilities of small rotary evaporator machines, enhancing the quality of products and processes.

Advantages of Small Rotary Evaporators

Time Efficiency

Compared to traditional methods, small rotary evaporators significantly reduce the time required for solvent evaporation, making experiments and processes more time-efficient.

Sample Preservation

The gentle evaporation process of these machines helps preserve the integrity of sensitive samples, ensuring that valuable compounds are not degraded.


Their compact size and efficient operation make small rotary evaporators a cost-effective choice for laboratories of all sizes.
Advantages Of Small Rotary Evaporators

Choosing the Right Small Rotary Evaporator

Capacity and Scale

Selecting the appropriate size and capacity of a rotary evaporator is crucial to match the specific needs of your laboratory or industry.

Safety Features

Safety should always be a top priority. Look for models with advanced safety features such as overheat protection and pressure control.

Customization Options

Many manufacturers offer customization options to tailor the machine to your unique requirements.
Small Rotary Evaporator MachineDisplay

Maintenance and Care

Regular Cleaning

Keeping your small rotary evaporator clean is essential for optimal performance. Regularly clean the glassware, condenser, and seals.


Calibrate the machine periodically to ensure accurate results and prevent malfunctions.

Technical Support

Leverage the dedicated customer service and technical support from reputable manufacturers like ZZKD Machinery and Instrument Equipment Co.,Ltd.

Investing in Quality

ZZKD Machinery and Instrument Equipment Co.,Ltd.

When it comes to small rotary evaporator machines, trust matters. ZZKD, with its 13 years of export experience and commitment to quality, is a name you can rely on. Their extensive range of distillation and extraction equipment, backed by ISO9001 and CE Certificates, ensures that you receive top-tier solutions tailored to your needs.

In conclusion, small rotary evaporator machines are the unsung heroes of laboratories and industries worldwide. Their precision, efficiency, and versatility make them an indispensable tool for a multitude of applications. By choosing the right machine, practicing proper maintenance, and relying on reputable manufacturers like ZZKD, you can unlock the full potential of this remarkable piece of equipment.

Remember, in the world of laboratory equipment, the small rotary evaporator machine is anything but small when it comes to its impact and capabilities.