Rotary Evaporators
CE Rated Rotary Evaporators Manufacturer
GWSI Rotary Evaporators For Sale
GWSI manufacture durable, high-quality rotary evaporators for sale to customers worldwide for 33+ years. GWSI supply CE certified rotary evaporators to help you grow business and get accurate reaction data.
You will satisfied with GWSI rotary evaporators performance as we use famous brands components such as Siemens & Schneider Electric to manufacture your rotary evaporators.
Ideal for use in smaller to medium-sized experiments.
Suitable for university laboratory.
Function: Crystallization and more
Fit for all industries on analytic and more applications.
Suitable for separation distillation.
Function: Recrystallization and more
Keep you safe when working with
larger quantities applications.
Suitable for Concentrate and dry.
Function: Distillation and more
GWSI 10L rotary evaporator trusted by 2000+ customers worldwide.
Suitable for Essential Oil Extraction.
Function: Recycling and more
You will receive 20L rotary evaporator in waterproof package.
Suitable for Vacuum distillation.
Function: Synthesizing and more
GWSI supply 50L rotary evaporator for sale with international brands components.
Suitable for industrail application.
Function: Purifying and more
Explosion Proof Rotary Evaporator For Sale
GWSI 1010Ex Explosion Proof Rotary Evaporator For Sale is a better choice for sensitive condition.
GWSI 1020Ex Explosion Proof Rotary Evaporator For Sale will protect you from explode danger.
GWSI 2020Ex Explosion Proof Rotary Evaporator For Sale is suitable for complex situations.
Your Premium Rotary Evaporators Manufacturer
GWSI is a leading rotary evaporator manufacturer and supplier in China since 1988 and we are the United Nations Industrial Development Organization research site. GWSI manages our own rotary evaporators and glass reactors manufacturing and quality control processes from beginning to end, strictly follows ISO:9001 quality management and 6S factory management.
Experienced workers and well organized production line keep our rotary evaporators costs competitive.
World talent professors leading innovative R&D team promise you with sustainable supply of new products.
Independent technical engineers are always ready to solve your any problems in operation and applications.
Rotary Evaporators Manufacturing
GWSI has mini & large rotary evaporator workshop equipped with CNC lathe and more advanced process machine for rotary evaporators manufacturing.
GWSI manunfacture rotary evaporators with reliable international brands material. You can expect our rotary evaporators to provide precise control and optimal results.
GWSI implements strict quality control when manufacturing rotary evaporators. Our engineers make sure that all the moving parts of the rotavapor are working smoothly and accurately.
GWSI QC inspectors check each inch of glass parts, making sure there are no bubbles, dents, scratches, dirt or knots. GWSI assemble each electric part carefully, whether it is a screw or wiring. You can analyze the quality and composition of glass we use to make condensers and flasks.
Rotary Evaporator Application
Rotary Evaporator For Distillation
You can use GWSI rotary evaporator to make distillation for different solvents.
GWSI supply rotary evaporators with overrun protection to ensure safety in daily use.
Rotary Evaporator For Crystallization
GWSI Rotary Evaporator can fit for crystallization from 1L to 50L. You can easily make the crystallization process with our rotavap. It has mannual and electric control way to use..
Rotary Evaporator For Extraction
GWSI offer rotary evaporator for sale to let you make extraction for oil, petroleum and more industry.
GWSI rotary evaporators is accessible in various volume such as and can be customized.
Rotary Evaporator For Laboratory
GWSI provide Lab Rotary Evaporator for university, small scale experiments. All our lab scale rotavap composed of high borosilicate glass to bear high temperature.
You can get Rotary Evaporator at affordable price with international standards.
GWSI Rotary Evaporators Manufacturing Capacity To Support Your Need
Clean & tidy workshop
Superior quality raw materials
Experienced workers for high eficiency
Strictly QC control
Thickened pearl cotton for damage risk
Supply accessories for long time
Support Resource About Rotary Evaporators
You can learn the complete rotary evaporators parts list from this article.
You will get to know how to operate the rotary evaporators in quick time.
You will find practical ways to solve the common technical problems.
You can check list of Top 50 Rotary Evaporator Manufacturers from this post.
You can check how to install the rotary evaporators and do it by yourself.
You will know the ways to maintain your rotary evaporators in this guide.
GWSI Rotary Evaporators Related Products
Rotary Evaporators Complete Guide
In the ancient Greek era in 350 BC, Aristotle studied the principles of distillation and condensation, discovered the important water cycle in nature.
Seawater can be made drinkable by distillation, which turns water into steam and then into a liquid.
In the 17th century, Irish physicist Robert Boyle carried out the revolutionary vacuum distillation, which proved the relationship between pressure and boiling point, and the distillation speed was significantly improved.
In the 1950s, scientists C.C.Draig and M.E.Volk proposed the concept of rotating flasks to achieve better mixing and larger area heating of samples. At the same time, the earliest commercial rotary evaporator was born.
Boiling of certain samples, such as ethanol and water, will result in loss of samples collected by the experimenter.
The solution?
In operation, boiling can usually be prevented by carefully adjusting the working intensity of the vacuum pump.
You can also add Boil-proof particles to the sample to avoid boiling.
You can use special condenser tube to the rotary evaporator for samples that are particularly difficult to distill, including samples that are prone to foaming.
Rotary evaporators are used for fast and gentle distillation of most samples.
Due to the centripetal force and friction between the liquid sample and the evaporating flask, the liquid sample can form a liquid film on the inner surface of the evaporating flask, increasing the heating area.
The force generated by the sample rotation effectively suppresses the boiling of the sample.
If you just buy a rotary evaporator for sale and want to know how to effectively improve its working result, you can follow the below steps.
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Rotary Evaporator is used many times in the laboratory.
You need to clean and maintain it to keep it in good status.
You can washed rotavap glassware with 0.5% detergent first, then washed with tap water, and then soaked in 1%~2% hydrochloric acid solution at least four hours.
Rinse again with tap water, and finally rinse with deionized water two to three times, and put it on a rack for later use.
For used instruments, first wash with tap water until there is no dirt, then wash with decontamination powder or lotion.
Rinse again with tap water, and finally rinse with deionized water two to three times, and put it on a rack for later use.
The standard of cleaning rotary evaporator glass is that water droplets should not be suspended inside and outside the container, and the inner wall should be evenly wetted with a thin layer of water.
Here is the truth:
Rotary evaporator is usually connect to the chillers and vacuum pump in reaction process.
In order to fully condense the vapor, the temperature of the cooling circulator should be set to about 20°C below the vapor temperature for rotary evaporator.
For example:
A solvent vapor temperature of 30°C is generated at a bath temperature of 50°C, followed by condensation at 10°C.
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In most cases, rotary evaporator spinner bottle will not fall during running.
But what to do if the spinning bottle fall into the pot?
Here is the solution:
If methylene chloride is fall out of the pot, quickly turn off the heat and move the rotary evaporator water bath to a fume hood.
Due to the low boiling point of dichloromethane, if the temperature of the water is greater than 40 ℃, the dichloromethane will continue to boil, and it is recommended to add a small amount of ice to cool down.
After the temperature has dropped, tilt the pot and use a dropper to suck out the methylene chloride.
If a solvent with a density less than water, such as ethyl acetate, is dropped from the pot, directly scoop out the upper solvent with a small measuring cup.
Water-soluble solvents, such as alcohols, if the product is insoluble in water and directly precipitated, just filter is ok.
Here is the truth:
Rotary evaporator is a useful instrument in pharma industry.
Rotary evaporator is one of the indispensable experimental instruments for drug extraction.
So how to use it in pharma manufacturing process?
Here we list the main steps for reference.
Check whether the rotary evaporator has the clean sign and the equipment intact sign.
if there is no clean sign or if the equipment is out of service, the rotary evaporator must not be used.
Check whether the rubber tube used for vacuuming is aging: check whether all the dosing cocks are closed.
Use the water bath lifting handwheel to lower the water bath, install the evaporating flask, and then use the water bath lifting handwheel to raise the water bath.
Turn on the condensed water, open the vacuum pump valve, and check whether the index of the vacuum gauge is within the specified range.
Rotating the material and turn the cock into an open state.
Use a rubber tube to pump in the material liquid and you shoud note the amount of material liquid should not exceed half of the capacity of the rotary evaporation bottle.
After the material is pumped, close the material extraction port.
Adjust the bath to an appropriate height, usually by rotating the bottle immerse 1/2~1/3 is appropriate.
The height of the water (oil) bath can balance the weight of the rotating bottle with buoyancy.
Press the rotation start button to start the rotation and adjust the knob from slow to fast.
Adjust the temperature to the required temperature.
Rotate the valve of the large collection bottle & the condenser connected to the large collection bottle, so that the evaporated solvent flows into the bottle.
When the large collection bottle is almost full, close the compound valve and open the small collection bottle.
The compound valve of the collection bottle connects the condenser with another small collection bottle.
At the same time, open the auxiliary valve in the compound valve on the large collection bottle.
After the large collection bottle is emptied, open the rotary evaporator discharge valve and release the collection liquid.
Large and small collection bottles can be used alternately to ensure continuous operation.
The rotary evaporator can be continuously fed through rotating the feeding cock to open it and pump it in with a rubber tube.
After the evaporation is completed, turn off the heating key and vacuum pump.
Use the water bath lifting handwheel to lower the water bath and remove the rotary bottle, or pass the PTFE tube through the small hole on the distillation bottle.
Use negative pressure to suck the solution in it out and avoid frequent disassembly of the rotating bottle.
After using the rotary evaporator, wipe the interface of the rotary evaporator with purified water with a clean cloth.
According to the evaporator operation procedure, rinse the rotary evaporator with water repeatedly until there is no residue and use a suction bottle to extract the residual liquid in the evaporation bottle.
Turn off the vacuum and scrub the outside of the rotary evaporator clean with purified water.
Seal all the mouths with plastic bags, hang up the cleaning signs, and set aside.
If rotary evaporator is found damaged or malfunctioning, you should immediately notify the maintenance personnel to replace it.
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Rotary evaporators are commonly and conveniently used to separate “low boiling point” solvents, such as n-hexane or ethyl acetate, from compounds that are solid at room temperature and atmospheric pressure.
Now let’s learn about the experience of rotating evaporator:
During the use of the equipment, the water in the water bath, the water in the water pump and the whole device must be kept clean.
Rotary evaporators are mainly used for concentration, crystallization, drying, separation and solvent recovery in the pharmaceutical, chemical and biopharmaceutical industries.
Compared with atmospheric distillation, the rotary evaporation rate is faster under negative pressure. If some samples cannot withstand high temperature, they can be carried out at normal temperature.
The distillation flask of the rotary evaporator can be a pear-shaped or round-bottomed flask with a standard ground mouth, connected to a vacuum pump through a high reflux serpentine condenser.
The other opening of the reflux condenser is connected to a receiving flask with a grinding mouth for receiving the evaporated organic solvent.
There is a three-way piston between the condenser tube and the decompression pump. When the system is connected to the atmosphere, the distillation flask and the liquid contact flask can be removed to transfer the solvent.
When the system is connected to the decompression pump, the system should be in a decompressed state.
You should be careful that there are two external connectors on the condenser for cooling water, one is connected to the water, and the other is connected to the water.
Rotary evaporator condenser tube plays an important role in the evaporation process.
The rotary evaporation is carried out under the constant temperature control of the liquid, and the evaporated gas is returned to the condensing device, converted into liquid after constant temperature cooling, and finally returned to the recovery bottle.
The condensing bottle device is an important step in the conversion of gas to liquid.
If there is a problem with the condensing bottle device, it will directly affect the purity of the liquid in the final recovery.
Here is the truth:
Distillation is a way to separate different materials based on their unique characteristics and it is suitable for destroy sensitive molecules by polymerization or by thermal cleavage.
Distillation is fit for herbs organic extraction.
As herbal extracts are heat sensitive, they are usually distilled in the rotary evaporator.
There is usually only one solvent in herbal extraction.
The problem is:
The boiling point of the solvent is above or close to the coolant outlet temperature.
This results in poor solvent recovery and damage to the vacuum source and the environment.
The solution to this problem is to apply a vacuum controller so that the solvent boils 20-30 degrees above the coolant outlet temperature.
Vacuum controllers can also be interconnected with process parameters and time for applications other than distillation.
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Explosion-proof rotary evaporator is designed for sensitive conditions to make theevaporation, distillation and separation of chemical experiments.
It use a large-capacity and large-diameter rotary evaporator bottle to increase the evaporation area, place it in a water bath under reduced pressure, and heat while rotating to make the solution diffuse and evaporate efficiently.
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Choosing the right cooling method for your evaporation experiment can have an incredible impact on overall system performance and efficiency.
Here is the question:
How to choose suitable cooling circulating water bath?
we list the follwing factors for reference.
The minimum temperature of the cooling circulating water bath needs to be equal to or lower than the temperature at which the rotary evaporator condenses the solvent vapor at the optimum rate.
The cooling effect of the cooling circulating water bath needs to comprehensively consider the two parameters of temperature and cooling capacity.
If the condenser is required to work at lower temperatures, it is necessary to have an in-depth understanding of the cooling capacity of the cooling circulating water bath at lower temperatures.
If the rotary evaporator needs to distill multiple solvents, the power of the cooling circulating water bath should be selected according to the minimum condensation temperature required.
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When you use a rotary evaporator to evaporate the material, the most important thing is to heat it at a constant temperature with a water bath.
Next, we will tell you about some precautions when using a rotavap water bath.
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Liquid concentration or purification methods commonly used in laboratories are usually rotary evaporation, vacuum distillation, parallel evaporation, and rectification.
It is usually used for the evaporation of common solvents, such as methanol, acetonitrile and other substances.
Because in chemical experiments, especially in the synthesis of organic compounds, most of the reactants are first dissolved in the solvent, and various reactants are reacted with each other by steps such as heating and stirring. After the reaction is completed, the solvent Distillation is required, so a rotary evaporator is required.
Most laboratory rotary evaporators are equipped with circulating water pumps.
Rotary evaporation can also be regarded as a kind of vacuum distillation.
It usually use a rotary vane vacuum pump. At present, in order to improve the resistance to chemical corrosion, there are also applications of hybrid pumps and screw vacuum pump.
It is usually used for high-throughput screening in organic synthesis processes to improve the efficiency of screening.
Equivalent to multiple rotary evaporators working at the same time.
The final solvent evaporation efficiency depends on the heating temperature and vacuum.
Rectification is usually the separation of substances with a high boiling point and a similar boiling point, and what needs to be obtained is the distilled substance.
Rectification mainly examines data such as heating temperature, stirring speed, packing, reflux ratio, vacuum degree, etc., and obtains a set of optimal combinations. Usually a vacuum pump less than 1mbar is required.
Vacuum degree is the most important process parameter of rotary evaporator, and users often encounter the problem of vacuum degree, which is often related to the nature of the solvent used.
However, general vacuum cannot withstand strong organic solvents, so special vacuum pumps with strong corrosion resistance can be selected first.
Continuous use of the motor surface temperature rise does not exceed 45 ℃ is normal and can be used with confidence.
If the temperature rise exceeds 45°C, check the relevant transmission lubrication system.
If the ambient temperature is very high, the water bath temperature is also very high, and the user can use a fan to cool it.
The rotary evaporator consists of three parts: the mechanical part, the glass part and the constant temperature water bath.
Installation of rotary evaporator for sale is very convenient, the specific procedures are as follows:
The above is the whole installtion process and you can follow it to install your rotavap.
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Air tightness is very important for the rotavap for sale quality.
You need to check whether the system can maintain a high degree of vacuum in the state of motion under the erosion of various solvents.
Generally, the more complex lifting structure, the rotavap price will be more expensive.
The main unit of 1L, 2L and 5L rotary evaporator for sale is lift available, and you can lift the water bath for rotavap capacity above 5L.
Here is the truth:
1L, 2L, 3L, 5L rotavap machines are suitable for laboratory and small sample tests.
5L, 10L, 20L rotary evaporator are suitable for pilot test.
20L and 50L rotary evaporator for sale are suitable for pilot test and production, especially for the extraction of materials that need to avoid metal ion contamination.
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Most people think rotavap is the same with the glass reactor and vacuum pump.
Generally, Rrotary evaporator is used in the chemical laboratory.
We will introduce you to the additional applications of the rotary evaporator.
Now many hotel chefs use rotary evaporator to evaporate part of the water in the fruit juice to make the juice drink more rich and pure.
Compared with the juice made with additives, the taste is not bad at all, but it is fresher and healthier.
Even when making cakes, adding vegetable juice to the cake embryo, fresh cream and white chocolate is too thin, we will use our rotary steamer to make the vegetable juice thicker and more perfectly integrated into the cake.
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Most cosmeceuticals are based on traditional Chinese medicine.
Of course, the drug in it cannot be in solid form.
Therefore, a very important step when making cosmeceuticals is to dissolve the drug so that the consistency of the cosmetic and the drug is the same, and that the Tyndall effect will not occur between the two.
Therefore, it is necessary to use a rotary evaporator to continuously experiment with different water contents for titration and reconciliation.
Every pharmacy laboratory and production room basically has a rotary evaporator to do the experiment.
Rotary evaporators are almost used more frequently in the preparation of pharmaceuticals than in chemical laboratories.
The detection of water is basically to detect the total dissolved solid value in the water, that is, to detect the total amount of various organic or inorganic substances dissolved in the water.
If the impurities in the water to be analyzed are limited and uncertain, the use of the rotary evaporator is reflected.
You can use rotary evaporator to evaporate most of the clean water and you can calculate the quality of impurities.
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Rotary evaporator is a kind of experimental equipment that can carry out negative pressure and atmospheric distillation, and the whole machine has good sealing performance.
But sometimes there is a situation where the vacuum cannot be pumped up.
Today, we will briefly summarize some solutions on the vacuum cannot be lowered.
Because it is limited by the saturated vapor pressure, the degree of vacuum cannot be reduced.
You need to clean up the container and try again.
If there is something wrong with the Water Circulating Vacuum Pump, you need to first replace the circulating water of the vacuum pump.
If the problem is not solved, we need to clean and check the circulating water vacuum pump.
The vacuum degree caused by the loose joint cannot be lowered.
You just need to tighten the connection and joint.
If there is foreign body blockage in the radiotherapy valve or pressure control valve and damage to the glass wool sandwich panel, the vacuum degree will not be lowered.
You need to detect and find the foreign body blockage reason and solve it.
If the sealing ring has not been replaced for a long time, it may be corroded, which will reduce the overall sealing performance of the equipment.
You need to inspect and maintain the sealing ring of rotavap regularly.
If you are dealing with a large volume or are running multiple evaporations, you need the process to run as fast as possible.
Here is the recommed method.
The anti-splash ball is a commonly used supporting glass instrument for rotary evaporators and sometimes it cannot be removed.
Failure to remove is usually caused by the lack of vacuum silicone grease or by the sample sticking to the interface.
We advise following ways to solve this problem.
If it is not very tight, you can put on canvas gloves shake it horizontally and forcefully to see if it can be removed.
Find a plastic bottle that is common in the laboratory, extend toward the anti-splash ball.
Go around the edge of the anti-splash ball interface, tap the anti-splash ball with a small force, and connect the anti-splash ball with your hand to prevent it from falling and breaking.
If it doesn’t work, don’t hit it with too much force to prevent the glass shaft of the rotary evaporator from being broken.
Take off the anti-splash ball together with the glass shaft and put it in a dry ice ethanol bath for 2~3 minutes.
Take it out, rinse off the ethanol with water first and quickly bake the interface with the hot air gun.
If it does not open, repeat this operation.
Rotary evaporator is a kind of equipment commonly used in laboratories for evaporation, concentration and purification operations.
It can be used for small-scale, pilot-scale and production in the fields of biology, medicine, chemical industry, and food.
So how does the rotary evaporator perform distillation and purification?
Here we introduce the distillation and purification with rotavap briefly.
The rotary evaporator is heated at a constant temperature and rotated under the condition of reduced and negative pressure to form a thin film to continuously evaporate a large amount of volatile solvent, evaporate, and then condense and recover the solvent to achieve the effect of purification and separation.
That is, under reduced pressure, when the solvent is distilled, the distillation flask is continuously rotating.
As a heat source for distillation, the rotary evaporator can be combined with Water Circulating Vacuum Pump, diaphragm vacuum pump, Recirculating Chiller and Refrigerated Heating Circulator to form a system device.
When using rotary evaporator, it should be noted that the glass parts should be handled with care, and should be washed, dried or dried before installation.
Each grinding port, sealing surface sealing ring and joint need to be coated with a layer of vacuum grease before installation.
The core of avoiding rotavap bumping is the precise control of the vacuum condition of the system.
At present, some rotary evaporators do not have a built-in vacuum control system.
Generally, it is recommended to choose an electronic vacuum controller for vacuum control of the rotary evaporation system.
Electronic lift and vacuum controller with built-in vacuum sensor, regulating valve and exhaust valve, the vacuum system can be easily upgraded to electronic control, making the whole distillation process more efficient.
It can effectively avoid the situation of sample bumping and punching, and it is the best choice for economical digital vacuum control.
Are you wondering when to choose atmospheric distillation and when to choose vacuum distillation for rotary evaporator?
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The question of atmospheric distillation or vacuum distillation is not only about the rotary evaporator.
For low boiling points and stable chemical properties, atmospheric pressure is enough, no need to reduce pressure.
Vacuum distillation is used for the distillation of substances with high boiling points, difficult volatilization, and unstable high temperature properties.
As for the rotary evaporator, there is an additional function of rotation, which can make the liquid adhere to the inner wall of the flask, increase the evaporation area and improve the evaporation efficiency.
As for whether to use normal pressure or reduced pressure, it depends on the stability of material properties.
Substances with stable performance and low boiling point can be tested at normal pressure.
On the contrary, for non-volatile substances with higher boiling points, vacuum distillation should be used, and the speed of vacuum distillation is generally faster than that of normal pressure.
Many people ask why rotary evaporator use high borosilicate glass for the glassware.
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The main components of high borosilicate glass are boron oxide, silicon dioxide and sodium oxide, etc.
The content of boron silicon is relatively high, with boron accounting for 12.5%-13.5% and silicon accounting for 78%-80%.
High borosilicate glass thermal expansion coefficient can reach 3.3 while ordinary glass is 5.8-150, so high borosilicate glass has stronger fracture resistance.
The high borosilicate glass has higher heat resistance, the strain temperature can reach 520℃ and the temperature difference it can withstand can reach about 150℃.
During the development of the experiment, the condition is usually below zero or high temperature such as hundred degrees Celsius.
This greatly increases the safety risk. It is not allowed to use tempered or ordinary glass.
High borosilicate glass has stable molecular properties and is not easy to chemically react with materials.
Compared with tempered glass and ordinary glass, the High borosilicate glass has higher transparency and make the project process clearer and brighter.
When the rotary evaporator is working, the heating temperature of the heating bath to the rotary bottle can reach 200 ℃.
The condensing coil cools and condenses the material vapor through the refrigerant in the recirculating chiller.
High borosilicate glass of rotary evaporator must be used to ensure the smooth progress of the whole project.
You might purchase rotavap for sale from manufactuer.
But you still not sure when to use atmospheric or vacuum distillation for rotary evaporator.
Actually, here is the method to help you decide to use which distillation type.
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The question of atmospheric distillation or vacuum distillation is not only about the rotary evaporator.
For low boiling points and stable chemical properties, atmospheric pressure is enough, no need to reduce pressure.
Vacuum distillation is suitable for the distillation of substances with high boiling point, non-volatile, unstable high temperature properties, etc.
As for whether to use normal pressure or reduced pressure, it depends on the stability of material properties.
Substances with stable performance and low boiling point can be tested at normal pressure.
On the contrary, for non-volatile substances with higher boiling points, vacuum distillation should be used, and the speed of vacuum distillation is generally faster than that of normal pressure.
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Vacuum is an integral part of the rotary evaporation process and the ability to quickly and effectively identify any pressure-related issues will help you run more efficient processes and minimize downtime.
During usage, you should make sure the system is working well and maintain a normal vacuum.
The question is:
What to do if there is no vacuum during the rotavap operation?
Here we list the main solution for reference.
In theory this should be a closed system with no way to generate additional gas through evaporation.
If the system is off and the pump is working properly, it should reach the pump’s high vacuum/low pressure relatively quickly.
If not, the integrity of the pump needs to be checked.
You can disconnect the pump and use the vacuum gauge directly on the pump with a closed wire and see how it works.
If there is no possibility of adding air to the system (e.g. through leaking fittings or connections), the vacuum pump should be able to quickly reach its high vacuum/low pressure.
Leaks may also occur at the seal where the condenser is connected to the rotary evaporator body near the upper end of the steam pipe.
Users can listen for leaks by placing their ears near the glass joints and connections.
But many times the vacuum pump is so loud that small leaks may not be detected this way. Remove and reconnect all connectors and connections.
After completing the above checks, if the pump is in good working order and the user cannot find any leaks, but the system still does not maintain a consistent vacuum during the evaporation process, in this case the user can check the conditions of the evaporated solvent.
In addition to the need to pay attention to the vacuum problem, the daily maintenance and maintenance of the rotary evaporator is very important.
We have got an exceptionally passionate team here at Greatwall ready to help you find possible solutions for optimum performance.
Have any questions about our products or services? Our well-trained personnel is at your disposal.
GWSI is a manufacturer of rotary evaporators, glass reactors, and temperature control units for laboratory and industrial applications.
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