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Rotary Evaporator

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Application : distillation and extraction
Capacity : 2L,5L,10L,20L,50L
Warehouse in USA | Canada | Spain | Thailand with fast delivery.

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Rotary evaporator is a commonly used distillation and extraction equipment. It can continuously distill a large number of volatile solvents under reduced pressure, and can also be used for the concentration of the extract and the distillation of the receiving liquid during chromatographic separation.

ZZKD Machinery has been focusing on R&D and production of rotary evaporator for many years, it is one of our leading products,After several upgrades and transformations, there are more and more models and types of rotary evaporators, more and more functions are more perfect, and the appearance has also changed a lot.At present, our rotary evaporators are divided into the following Models:

RE series mini rotary evaporator, Model: RE-201D, RE-301, RE-501, RE-5299

re-201d and 21 rotary evaporator

RE automatic lift mini rotary evaporator,Model: RE-2000A, RE-2000B, RE-2000E

RE-2000ABE 2l rotary evaporator

RE series large scale rotary evaporator,Model: RE-1002, RE-2002, RE-5002

RE series large scale automatic lift rotary evaporators,Model: RE-5002B, RE-2002B

re series 10L and 50L rotary evaporator

R series automatic lift rotary evaporator,Model: R-1005, R-1010, R-1020, R-1050

5L 20L 50L rotary evaporator

If divided by capacity, our rotary evaporator capacity includes:2L,5L,10L,20L,50L.2L and 5L rotary evaporators belong to mini rotary evaporator, 10L and above belong to large scale rotary evaporator,and the explosion-proof motor can be customized according to your needs, which is safer to use.

Warehouse in USA | Canada | Spain | Thailand

We have warehouses in the United States (Los Angeles), Canada (Vancouver), Spain (Valencia), Thailand (Bangkok), and have a large inventory,no matter which country you are in, you are guaranteed to receive the goods as quickly as possible.

warehouse in USA Canada China

Why choose us?

1)Rotary evaporators now in stock with fast delivery.

2)  With 13 years of experience in R&D and production of rotary evaporators.

3)  provide you with premium quality products and perfect after-sales service.

4)  Premium  quality with CE certification.

5)  Factory direct sales with competitive price.

6)  Provide one-stop Extraction Turnkey Solution.

CE certification

Rotary evaporator supporting equipment

The rotary evaporator needs to be equipped with a cooling chiller and a circulating water vacuum pump.The supporting equipment for rotary evaporators of different capacities is also different. If you are using 2L and 5L rotary evaporators, you should be equipped with a desktop circulating water vacuum pump and a small cooling chiller. If you are using a 10L, 20L, 50L rotary evaporators, it should be equipped with a vertical circulating water vacuum pump and a large cooling chiller.

Cooling chiller

The main function is to cool the circulation and provide the cooling source for the rotary evaporator. There are many types of it. Different types of cooling chiller have different capacities and minimum refrigeration temperatures. When equipped, they should be selected according to the type of rotary evaporator.

dlsb cooling chiller

Circulating water vacuum pump

The main function is to provide a vacuum environment for the rotary steamer. The circulating water vacuum pump is divided into two types: desktop and vertical. The desktop model is SHZ-D, and the vertical model is SHZ-C. Large scale rotary evaporator are usually equipped with vertical circulating water vacuum pumps. Small rotary evaporators are usually equipped with a desktop circulating water vacuum pump.

circulating water vacuum pump

Application of mini rotary evaporator:

Rotary evaporators are mainly used in concentration, crystallization, drying, separation and solvent recovery in the pharmaceutical, chemical and biopharmaceutical industries. The principle is that under vacuum conditions, the rotating bottle rotates at a constant temperature, and the material forms a large film area on the bottle wall, which is effectively vaporized. This is why the solvent vapors are removed through a high performance glass condenser and returned to the stored bottle, greatly improving the performance of the fever. It is especially recommended for the freezing and purification of organic products that are easily dispersed and degraded at high temperatures.

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The advantages of mini rotary evaporator:

⒈Easy to use: All rotary evaporators have a built-in lift motor, which can automatically lift the flask to the position above the heating pot when the power is off.

⒉ Large heating area: Due to the centripetal force and friction between the liquid sample and the evaporating bottle, the liquid sample forms a liquid film on the inner surface of the evaporating bottle, and the heating area is large;

⒊High degree of automation: The force generated by the rotation of the sample effectively inhibits the boiling of the sample. Combined with these features and their convenience, modern rotary evaporators can be used to quickly and gently distill most samples, even by inexperienced operators.

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our package outside

Features of mini rotary evaporator:

1. Internationally advanced EL airtight system to maintain a high vacuum, gas-liquid separator, no backflow.

2. The structure is reasonable, the materials are exquisite, and the mechanical parts are made of stainless steel and aluminum alloy die-casting.

3. Double-layer condenser, the recovery rate is more than 95%.

4. Glass parts are made of corrosion-resistant, high-temperature resistant, borosilicate glass.

5. Evaporating flask is easy to install and set up.

6. The rubber parts use new standard materials, which are convenient for users to replace.

7. Feed valve can realize non-stop feeding.

8. Built-in transmission system, frequency conversion speed control, constant speed and reliable.

9. The water bath adopts an intelligent PID temperature controller, which can be lifted and down.

10. Explosion-proof system is optional; 110V/60Hz can be customized.

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The working principle of the mini rotary evaporator

The rotary evaporator is electronically controlled to make the evaporator flask at a constant speed at the most suitable speed to increase the evaporation area. The evaporator flask was under negative pressure using a vacuum pump. The evaporator flask is kept in a water bath to keep it constant during rotation, and the solvent contained in the flask is heated, enlarged, and the circulating flask turns into steam under negative pressure. The rotary evaporator system can be sealed and decompressed to 400-600 mm Hg; the solvent in the evaporator flask is heated with a heating bath, and the heating temperature can be close to the boiling point of the solvent; at the same time, it can be rotated at a speed of 50-160 rpm, The solvent is formed into a thin film and the evaporation area is increased. In addition, under the process of a high-performance cooler, the hot steam can quickly become liquid and accelerate the rate of fever.

Rotary evaporator models and components:

RE series mini rotary evaporator(2L 5L) is mainly an distillation and extraction equipment for chemical, pharmaceutical, university, scientific research laboratories and other industries. The circulating water vacuum pump uses circulating water as the working fluid to provide vacuum conditions for the rotary evaporation process. The low temperature coolant circulation pump adopts the principle of mechanical refrigeration for low-temperature cooling chiller, and the lowest temperature can reach -120 °C.

RE series large scale rotary evaporator(10L 20L 50L) can be used to recover and evaporate organic solvents. Under vacuum conditions, constant temperature heating. The rotating bottle rotates at a constant speed, and the material forms a large-area film on the bottle wall, which evaporates efficiently. The evaporation of the solvent is cooling chiller by a high-efficiency glass condenser and recovered in a collection bottle. The large capacity rotary evaporation greatly improves the evaporation efficiency, and is especially suitable for the concentration and purification of materials that are easily decomposed and deformed at high temperatures. RE series large capacity rotary evaporator also needs to be equipped with a circulating water vacuum pump and a low temperature coolant circulating pump.

Components: The rotary evaporator is mainly composed of a glass part, a water bath part, a sealing part and a motor part. The glass part is mainly composed of condenser, rotating bottle, receiving bottle, cross bottle, feeding piston (with PTFE tube) and glass through the shaft.

R-1005 rotary evaporator control panel

The condenser should pay attention to the different positions of the inlet and outlet, and the position of the vacuum exhaust port; the main and auxiliary condensers; the recovery rate-evaporation rate. The capacity of the rotating bottle is different, and the general diameter is different; the material of the glass part is GG17 high borosilicate glass. The capacity of the receiving bottle is different, and the general caliber is different. The small-capacity receiving bottle has no discharge port below 3L, and there is a discharge port above 5L.

Attention should be paid to the water bath: 1. The strength of the water bath is different for different models; 2. The diameter and depth of the water bath; 3. The controller of the water bath can only control the temperature in the pot, but not the temperature in the bottle; The explosion-proof water bath is different from the ordinary water bath controller, and the explosion-proof type is one-third smaller than the ordinary one; 4. Different models have different lifting heights

Sealing part: black material is rubberwood; white material is PTFE; light yellow material is nylon

The motor part adopts national standard copper wire, which has a long-running time and good stability.


rotary evaporator package

The operation steps of the mini rotary evaporator:

Set up the equipment:

1. Choose a measuring bottle that is approximately twice the starting capacity.

2. Choose an impact trap to reduce sample loss due to impact or vigorous boiling. It is best to consider a vacuum pump system.

3. Select and connect a vacuum pump to the required vacuum level and compatible with your specific solvent vapor.

4. Choose the right temperature for your water bath. The lower the temperature, the lower the processing speed, but it also reduces the possibility of shock or damage to the sample due to overheating.

Start rotary evaporation:

1. Turn on the cooling chiller and let the temperature reach the set value.

2. Turn on the water bath and allow the water bath to reach the set point before evaporating.

3. To secure the evaporating flask, do not rely on vacuum to secure the evaporating flask unless you are absolutely sure.

4. Begin to swirl the flask fast enough to form an even coating on the inner surface of the flask.

5. Turn on the vacuum pump, close the stopcock on the condenser, and allow the sample to rotate in vacuum for about 1 minute. The sample may begin to boil, if the sample begins to boil or boil vigorously, the system will need to be vented and the vacuum set point adjusted.

6. Once boiling has stopped and solvent has accumulated in the solvent trap, the flask is lowered to half a hot tub.

7. Due to the fast and precise response of the pump, it is better to control the production process by adjusting the vacuum level.

To stop the mini rotary evaporator work:

1. Lift the flask out of the hot tub.

2. Open the stopcock on the condenser and allow the system to vent to atmosphere.

3. Turn off rotation.

4. Turn off the vacuum power supply.

5. Remove the evaporating flask, remove the solvent collection bottle, and empty it.

6. Turn off the water bath and cooler (unless you restart evaporation).

Parameter

Model

Rotating Motor(W)

Water(Oil) Bath Power(W)

Temperature Control Range

Evaporation Rate(H2O)

Voltage

Lifing Height(mm)

RE-2000B

40

1500

RT~99℃

≥1L/h

220V/50HZ

0~140

RE-5299

30

1500

RT~99℃

≥1L/h

220V/50HZ

0~150

RE-201D

40

1200

RT~399℃

≥1L/h

220V/50HZ

0~150

RE-301

40

1500

RT~399℃

≥1.5L/h

220V/50HZ

0~120

RE-501

40

1500

RT~399℃

≥1.5L/h

220V/50HZ

0~120

RE-1002

180

3000

RT~99(250)℃

>3L/h

220V/50HZ

0~220

RE-2002

180

5000

RT~99(250)℃

>5L/h

220V/50HZ

0~220

RE-5002

250

7000/9000

RT~99(250)℃

>9L/h

380V/50HZ

0~220

RE-2000B

40

1500

RT-99 Temperature control accuracy ±1℃

≥1

220V 50/60HZ

0-140

EXRE-1002

180

3000

0-99(250)

>3

220V 50/60HZ

/

EXRE-2002

180

5000

0-99(250)

>5

220V 50/60HZ

/

EXRE-5002

370

7000/9000

0-99(250)

>9

380V/50HZ

/

Model

Rotating Motor(W)

Water(Oil) Bath Power(W)

Temperature Control Range

RE-2000B

40

1500

RT~99℃

RE-5299

30

1500

RT~99℃

RE-201D

40

1200

RT~399℃

RE-301

40

1500

RT~399℃

RE-501

40

1500

RT~399℃

RE-1002

180

3000

RT~99(250)℃

RE-2002

180

5000

RT~99(250)℃

RE-5002

250

7000/9000

RT~99(250)℃

RE-2000B

40

1500

RT-99 Temperature control accuracy ±1℃

EXRE-1002

180

3000

0-99(250)

EXRE-2002

180

5000

0-99(250)

EXRE-5002

370

7000/9000

0-99(250)

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ZZKD Machinery is expert in the manufacture of distillation extraction equipment.

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