20l Rotary Evaporator
(1)1L/2L---Manual lifting with irony base/Manual lifting with SS base/Electric lifting
(2)3L/5L/10L/20L/30L/50L---Manual Lifting/Electric Lifting
***Price List for whole above, inquire us to get
2. Customization:
(1)Design support
(2)Directly supply the Senior R&D organic intermediate, shorten your R&D time and cost
(3)Share the advanced purifying technology with you
(4)Supply the high quality chemicals and analysis reagent
(5)We want to assist you on Chemical Engineering (Auto CAD, Aspen plus etc.)
3. Assurance:
(1)CE and ISO certification Registered
(2)Trademark: ACHIEVE CHEM(since 2008)
(3)Replacement parts within 1-year for free
Description
Technical Parameters
A 20L rotary evaporator,designed as an efficient and multifunctional device in the laboratory,specifically for precise and controllable evaporation of solvents.With its powerful performance and flexibility,it has become an indispensable tool in laboratories in multiple fields such as chemistry,biology,and pharmaceuticals.This instrument works together through a series of precision designed key components to ensure efficient and stable evaporation processes.Among them,the round bottom flask is one of the core components of the 20L product.This flask is carefully crafted from high-quality glass material,which not only has excellent chemical stability but also outstanding heat resistance.Its capacity is as high as 20 liters,which is sufficient to accommodate a large amount of samples or mixtures to be evaporated,greatly improving experimental efficiency. During use,pour the sample or mixture to be evaporated into a round bottom flask and firmly fix it on the bracket of the machine.This tight fixing method not only ensures the stability of the flask during rotation,but also effectively prevents any leakage problems that may occur during evapration,thereby ensuring the safety and accuracy of the experiment.
We provide 20L rotary evaporator, please refer to the following website for detailed specifications and product information.
Product: https://www.achievechem.com/chemical-equipment/rotary-evaporators.html
Structure
The 20L rotary evaporator is an efficient laboratory device that integrates multiple key components that work together to promote the process of solvent evaporation.The design of this device aims to provide a precise,controllable,and efficient evaporation environment to meet the diverse needs of laboratories in various fields such as chemistry,biology,and pharmaceuticals.
The round bottom flask is the core container of a 20L machine,typically made of high-quality glass material with a capacity of up to 20 liters.It is used to hold the sample or mixture to be evaporated,ensuring sufficient space for evaporation during the experimental process.
The condenser is located above the round bottom flask and is responsible for condensing the vapor generated by evapration into liquid.The condenser is usually designed with cooling medium channels inside,which reduce the temperature inside the condenser by circulating cooling medium (such as water or refrigerant),thereby achieving steam condensation.
The heating bath is another important component of the 20L machine,located below the round bottom flask,which accelerates solvent evapration by providing a stable heat source.Heating baths are usually in the form of water baths or oil baths,and the heating temperature and heating rate can be adjusted according to experimental needs.
The vacuum system is used to reduce the pressure inside the machine,thereby lowering the boiling point of the solvent and making the evapration process more efficient.By adjusting the pressure of the vacuum system,users can precisely control the evaporation rate and temperature to meet the specific requirements of the experiment.
The rotating mechanism is another unique design of the 20L machine,which is responsible for driving the round bottom flask to rotate at a certain speed.This rotational motion can not only increase the contact area between the sample and the heating bath,improve heating efficiency,but also prevent local overheating or coking of the sample during evapration.
Finally,the receiving bottle is located below the condenser to collect the condensed liquid.The design of receiving bottles is usually easy to disassemble and clean to ensure the accuracy and reproducibility of experimental results.
The solvent is heated in the round-bottom flask,the vapor is cooled in the condenser,the vacuum system reduces the boiling point,and the rotating mechanism enhances the surface area for efficient evapration.These components,when properly operated and controlled,enable precise and controlled evaporation of solvents,making the machine an invaluable tool in various laboratory applications.
All kinds of "Rotary Evaporator",Price List,you can choose online HERE
Make licorice extract
Regarding the application of licorice extraction in production:
◆ Preliminary preparation
1) Raw material selection:Choose licorice root with good quality and no impurities as raw material.
2) Raw material treatment:After cleaning the licorice root,it is cut or crushed to facilitate the subsequent extraction operation.
◆ The extraction process
1) Add water extraction:Put the treated licorice raw materials into the extraction tank,add an appropriate amount of water (usually 7 times the amount of licorice),heat to boil,and keep boiling for a period of time (such as 2 hours) to fully extract the active ingredients in licorice.
2) Repeat extraction:In order to improve the extraction efficiency,the above extraction process can be repeated,adding different amounts of water each time (such as adding 5 times the amount of the second time,adding 4 times the amount of the third time),and separately frying and filtering,collecting the extract of each time.
◆ Rotary distillation concentration
1) Combined extracts:The extracts collected at various times are combined and initially filtered to remove impurities from them.
2) Rotry distillation and concentration:Pour the filtered extract into the evaporation bottle of the machine and turn on the rotry evaporator for concentration.The machine heats the solution through the heating tank,so that the solvent in it evaporates quickly,and the steam is condensed out through the condensing pipe,thus increasing the concentration of solute in the solution.
3) Control conditions:In the process of spinning,it is necessary to control the heating temperature,vacuum degree and rotation speed and other parameters to ensure the concentration effect.Usually,the temperature is set near the boiling point of the solvent,and the vacuum degree is adjusted according to the nature of the specific solvent and experimental needs.
4) Observation records:During the concentration process,it is necessary to closely observe the volume changes,color changes and foam generation of the solution,and make corresponding records.
◆ Follow-up treatment
1) Further concentration:After spinning to a certain extent,if the concentration of the solution still does not meet the requirements,it can be transferred to other enrichment equipment (such as dual-effect concentrator) to continue concentrating.
2) Filtration and drying:The concentrated liquorice extract is filtered through a filter device to remove small particles and impurities.Then,the filtered licorice extract is dried (such as vacuum drying) to get the final licorice extract product.
◆ Quality control
Ensuring that the quality of each process is strictly monitored throughout the entire manufacturing process is the core of ensuring that the final product meets both quality standards and is safe and reliable.This means that from the initial stage of raw material selection,strict screening procedures must be implemented,using only raw materials that meet established specifications and quality requirements to eliminate potential quality risks from the source.Subsequently,during the extraction process,it is necessary to adopt scientifically effective extraction techniques,accurately control key parameters such as temperature and time,and ensure the full release and stable extraction of active ingredients.
In the concentration stage,precise concentration equipment and technology are required to efficiently remove excess water or solvents while maintaining the high activity and purity of the target components.This step also relies on precise quality monitoring.The next step in the filtration process is not only to remove insoluble impurities,but also to ensure that the selection and operation of the filtration medium do not introduce new sources of pollution.Therefore,it is crucial to choose high-quality filtration materials and perform strict cleaning verification.
As for the drying process,it is not only necessary to control suitable temperature and humidity conditions to avoid product overheating,denaturation,or excessive moisture residue,but also to pay attention to the balance between drying efficiency and energy consumption,ensuring that production costs are optimized while maintaining product quality.After each step is completed,strict quality inspection should be carried out,including but not limited to appearance inspection,content determination,microbial limit testing,etc.,to ensure that each link meets the established quality standards.
In addition,the entire quality control system should also cover the full chain traceability capability from raw material storage to finished product delivery.Once problems are discovered,they can be quickly identified and measures taken to effectively prevent unqualified products from entering the market.Therefore,building a comprehensive,efficient,and continuously improving quality control system has immeasurable value in enhancing product competitiveness,maintaining consumer trust,and promoting sustainable development of enterprises.
Automatic lifting
Automatic lifting function overview
The automatic lifting function allows the height of the evaporating bottle and the condensing column to be electrically adjusted according to the experimental requirements, without manual operation, which saves time and improves the experimental efficiency. This function is easy and precise to operate through buttons or knobs on the control panel.
The working principle of the automatic lifting function
When the main power supply is connected, press the corresponding buttons on the control panel, and the condensation column and evaporation bottle can be automatically lifted and lowered. On the control panel, the distillation parameters are also set by corresponding buttons. As long as no parameter setting mode is active, press the corresponding button to realize the automatic lifting function. When the handle is released during movement, the condensing column and evaporation bottle are locked in either position.
The advantages of automatic lifting function
Improve efficiency
The automatic lifting function can quickly adjust the height of the evaporation bottle and the condensing column, saving the time of manual adjustment and improving the efficiency of the experiment.
Easy to operate
The lifting operation can be achieved through the key on the control panel, without complicated operation steps.
Precise control
The height can be precisely adjusted according to the experimental requirements to ensure the accuracy of the experimental results.
Safety
The error and danger that may occur during manual adjustment are avoided, and the safety of the experiment is improved.
Introduction of examples
Taking a brand of 20L rotary evaporator as an example, its automatic lifting function is realized by the ▲▼ key on the control panel. Press ▲▼ key during parameter setting, can not make the motor automatically lift. After setting the parameters, the evaporation bottle and condensing column can be automatically lifted by corresponding buttons. At the same time, the device also has other functions, such as temperature control, speed adjustment, etc., to meet the needs of different experiments.
Core technology - Air tightness
The importance of air tightness
In the use of rotary evaporator,air tightness has a crucial impact on the performance of equipment and experimental results.Good air tightness ensures efficient evaporation and condensation operations under reduced pressure,thus improving the concentration efficiency and purification effect of samples.At the same time,air tightness can also prevent outside air or impurities from entering the inside of the equipment,causing pollution to the sample or interfering with the test results.
The key technology to achieve air tightness
Choice of sealing material
20L rotary evaporators usually use high-performance sealing materials such as tetrafluorogel,which have excellent corrosion resistance and high temperature resistance,and can maintain a stable sealing effect in various solvents and high temperature environments.
Seal structure design
The equipment adopts advanced sealing structure design,such as dynamic sealing system and high temperature durable sealing,to ensure that good air tightness can be maintained during rotation and heating. These sealing structures usually include sealing rings,sealing rings and gaskets and other components,through accurate machining and assembly to achieve a tight sealing effect.
Configuration of vacuum system
LorThe rotary evaporator is equipped with an efficient vacuum system, including components such as vacuum pump and vacuum gauge.The vacuum pump can produce enough negative pressure to form a high vacuum environment inside the equipment; The vacuum meter can monitor the vacuum inside the equipment in real time so as to adjust the operating parameters in time.
► Air tightness testing and maintenance
1) Detection method:
Before use,the air tightness can be detected by injecting a certain amount of gas (such as nitrogen) into the equipment,and then observing the change of gas pressure.If the gas pressure drops significantly in a short period of time,it indicates that the equipment has gas leakage.
2) Maintenance measures:
Check and replace the sealing parts of the equipment regularly to ensure that they are in good working condition.
In the process of use,care should be taken to avoid damage or wear to the sealing parts,such as avoiding the use of sharp tools for scratching or collision.
Clean and maintain the vacuum system regularly to ensure that it is unobstructed and in good working condition.
Effect of air tightness on experimental results
The quality of air tightness directly affects the evaporation efficiency and purification effect of rotary evaporator.If there is gas leakage in the equipment,it will lead to reduced evaporation speed,reduced purification effect,and may even lead to sample contamination or inaccurate experimental results.Therefore,when using the rotary evaporator,it is necessary to ensure that the equipment has good air tightness.
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