20 Liter Rotary Evaporator

20 liter rotary evaporator,also known as 20 liter rotovap(short for rotary evaporator)is a type of distillation apparatus.Distillation is a process used to separate components in a mixture based on their different boiling points.The rotovap utilizes gentle heating and vacuum conditions to facilitate the evaporation of the solvent from a liquid mixture.

In a 20 liter rotary evaporator,the sample is placed in a round-bottom flask and rotated rapidly while being heated at a controlled temperature.The reduced pressure inside the system lowers the boiling point of the solvent,allowing it to evaporate more quickly.The evaporated solvent then condenses in a separate condenser unit and is collected in a receiving flask.

By using the 20 liter rotary evaporator,volatile compounds with lower boiling points can be separated and collected,leaving behind the non-volatile components in the flask.This process is particularly useful for concentrating or isolating specific compounds from a solution or mixture.Therefore,a rotovap is considered a type of distillation apparatus that facilitates the distillation process in a laboratory setting.

The rotary evaporator process,also known as rotary evaporation or rotovapping,involves the use of a rotary evaporator to perform solvent evaporation and concentration.

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1. Dual Condensers & High Efficiency: Large cooling area for faster condensation and higher solvent recovery.

2. Electric Lifting: Safe, labor-saving and precise operation, no manual adjustment needed.

3. CE & ISO Certified: Strict quality control, safe and reliable for global labs.

4. 1-Year Free Parts: Comprehensive after-sales support to reduce your maintenance cost.

5. Customization Available: Support structure, material and function customization for special applications.

 

our Rotary Evaporator casey

Structure:

Host:i ncluding motor,transmission device and control panel,etc.,used to control the rotation speed and heating power of the rotating bottle.
Rotating bottle: usually made of glass or stainless steel,with a capacity of 20 liters to hold the solution to be treated.
Condenser: used to cool the evaporated gas so that it quickly condenses into a liquid for collection and recovery.
Heater: Increases the rate of evaporation of solvents by heating the rotating bottle.Common heating methods include water baths,oil baths or electric heating.
Vacuum system: used to create and maintain a vacuum environment inside the rotating bottle to promote the evaporation of solvents.

Usage:

Vacuum pumping:After opening the vacuum pump,when you find that the vacuum can not be pumped,you should check whether the mouth of each bottle is sealed,whether the vacuum pump itself is leaking,and whether the sealing ring at the rotating shaft is intact.A vacuum switch is connected in series in the external vacuum pipe,which can fine-tune the evaporation speed.
Filling:use the system vacuum negative pressure,no need to stop,liquid material can be in the filling port with a hose into the rotary bottle,liquid material should not be more than half of the rotary bottle.The liquid material should not be more than half of the rotary bottle.When adding material,you should pay attention to slowly open the cork of the feeding tube to prevent backflow.
Heating:This instrument is equipped with a specially designed lifting water bath,which must be energized after adding water first,and dry burning is strictly prohibited.The water in the water bath should be added so that the rotating bottle is immersed in water 1/3 to 1/2.
Monitoring process:regularly observe the state of the solution in the rotating bottle and pay attention to the changes in temperature and vacuum.Adjust the rotating speed and heating power in time to maintain good evaporation effect.
Collect the product:When the solvent evaporation is completed,collect the liquid product in the condenser.Further processing steps,such as solvent recovery or other separation operations,may be taken as needed.

 

 

 

 

 

 

 

 

 

 

Application in a Chemistry Lab

Our 20L rotovap is widely used in:

- Organic synthesis & compound purification

- Pharmaceutical R&D and pilot production

- Essential oil extraction & concentration

- Food safety testing & sample preparation

- Bio-technology and chemical laboratory

 

Sucessful case 

 

In the chemistry lab of an University,Professor Zhang is leading his team of graduate students in a research project focused on the synthesis of a new organic compound.Today,they face a crucial step - the separation and concentration of the reaction mixture to extract the target compound.

 

The lab is filled with the scent of various chemical reagents.Professor Zhang,dressed in a lab coat,goggles,and gloves,carefully examines the 20L rotary evaporator on the table.They have successfully used this equipment in numerous experiments before.

 

He first pours the reaction mixture into the rotating flask of the rotary evaporator,ensuring not to exceed half its capacity.Then,he starts the vacuum pump to ensure the desired vacuum level inside the flask.As the vacuum increases,the solvent in the flask begins to evaporate rapidly.

Next,Professor Zhang adjusts the rotation speed and heating power to maintain a stable evaporation process.He keeps a close eye on the liquid in the flask,as well as the temperature and vacuum level.By continuously adjusting the parameters,he ensures that the solvent evaporates fully while the target compound remains in the flask.

As time passes,the liquid in the flask gradually decreases,while the liquid in the condenser increases.Professor Zhang collects this liquid carefully,preparing for further analysis and testing.

During the entire experiment,Professor Zhang and his team remain highly focused and vigilant.They are aware that chemical experiments involve many dangers and uncertainties,and any small mistake could lead to experimental failure or even danger.

 

Therefore,they strictly adhere to the lab's safety regulations to ensure the smooth progress of the experiment.

Finally,after several hours of hard work,they successfully complete the separation and concentration of the reaction mixture.Further analysis and testing reveal that the purity of the target compound meets the expected requirements.This lays a solid foundation for their subsequent research work.

This experiment not only demonstrates the crucial role of the rotary evaporator in chemical experiments,but also reflects the rigorous and dedicated research attitude of Professor Zhang and his team.They believe that in future research,they will continue to uphold this spirit and make greater contributions to the development of the field of chemistry.

FAQ

 

1. Q: Does the 20L rotary evaporator include vacuum pump?

A: No, vacuum pump and chiller are optional accessories.

2. Q: What is the evaporation speed of 20L rotovap?

A: Evaporation rate >5L per hour under standard conditions.

3. Q: Do you provide after-sales service?

A: Yes, we offer 1-year free replacement parts and lifetime technical support.

 

Interested in one 20L Rotary evaporator for your lab/factory?[ Inquire for Best Price Now]

Handling and installation

 Carry

Preparation work

 Before moving the device,ensure that the device has been completely shut down,and disconnect all external connections,such as power supplies and water sources.

 Remove unnecessary accessories,such as condensing tubes,evaporating bottles,etc.,to reduce the burden during handling.However,please note that these parts should be kept properly to avoid loss or damage.

Select the right handling tools

 Use professional handling tools,such as moving trucks with fixed devices or professional handling belts,to ensure the stability and safety of the equipment during handling.

 Do not use ordinary rope or cloth to bind the device.Otherwise,the device may be damaged or tilted during handling.

Precautions during handling

 During the handling process,collision and vibration should be avoided as much as possible.If the device is large or heavy,multiple people should work together to ensure smooth movement of the device.

 If a car is used for long-distance transportation,the equipment should be placed in a stable position in the carriage and fixed with a cushion or foam board to prevent collisions or tilts during transportation.

Inspection after handling

 After the device is transported,check that all components are intact.

 If any damage or abnormality is found,a professional should be contacted immediately for repair or replacement.

 Install

Preparations before installation

 Before installation,ensure that the equipment is completely clean and check that the components are intact.

 Prepare required tools and materials,such as screwdrivers,wrenches,and gaskets.

Installation steps

 Place the frame on a firm workbench near a water source to ensure that the frame is stable.

 Install the electric control box vertical rod and electric control box,tighten the fixing screws,and connect the motor coreless plug.

 Install the main condenser retaining clamp and vacuum gauge riser and fix them to the frame.

 Install the gas guide cylinder,condenser,collection bottle and other components in turn,and support them with brackets.Ensure that special sealing gaskets are installed at the connection points to ensure air tightness.

 Install the rotating bottle on the machine head and press the lock button to lock it.

 Place the water bath under the rotating bottle,add water to the appropriate position,and adjust the height of the water bath.

 Connect the vacuum pipe,cooling water pipe and feeding pipe.

Post-installation inspection and commissioning

 After the installation is complete,check the device to ensure that all components are correctly and securely installed.

 Check whether the device is correctly connected to the power supply and water source,and start the power supply for trial operation.

 During the trial operation,observe whether the equipment runs smoothly and whether there is abnormal sound or vibration.

If any problem is found,stop the machine immediately and contact a professional for repair.

Xi'an Rich Smart Technology Co.,Ltd is a professional supplier focusing on high-quality laboratory equipment, with the 20L rotary evaporator as one of our core products. Our 20L rotary evaporators and other lab instruments are widely used in universities, scientific research institutions, hospitals and CDC. We also cooperate with well-known biopharmaceutical, new energy and environmental protection enterprises. With stable performance and reliable quality, our 20L rotary evaporator and related products are exported to over 120 countries, gaining high recognition. Choose us, and we will grow together with your business.

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