Xi'an TOPTION Instrument Co., Ltd. is one of the most reliable manufacturers and suppliers of 1L–100L Laboratory Rotary Evaporator with Dual Condenser for Solvent Recovery in China. We provide high quality solutions & products for global customers who work in chemistry, biology, pharmaceutical, food, etc. If you have any enquiry about lab solution customization, please feel free to email us.
1L–100L Laboratory Rotary Evaporator with Dual Condenser
TOPTION supplies laboratory rotary evaporators for solvent evaporation, concentration, ethanol recovery, and sample preparation. Include 1L, 2L, 3L, 5L, 10L, 20L, 30L, 50L, and 100L, with custom configurations available upon technical review. Each system can be matched with a recirculating chiller, vacuum pump, and vacuum controller to meet different laboratory and pilot-scale evaporation requirements.
Rotary Evaporators are a common equipment for evaporation and separation of solvents. Its basic principle is to use the heating effect under a vacuum environment to evaporate the liquid solvent quickly and collect the evaporated solvent back to the liquid state through the condenser.
1. the liquid solvent is placed in a round-bottomed flask, and then a vacuum environment is established in the rotary evaporator by means of a vacuum pump unit.
2. the rotary evaporator heats the sample flask so that the solvent therein begins to evaporate.
3. The evaporated solvent vapors diffuse rapidly in the vacuum environment and enter the attached condenser.
4. Inside the condenser, the vapors are condensed to a liquid state by a cooling medium and the liquid solvent is collected back into the condenser.
5. As a result of this process, the solvent is evaporated and separated, while the residual sample remains in the flask.
In this way, the rotary evaporator effectively realizes the rapid evaporation and separation of liquid solvents and is one of the common and important equipment in chemical laboratories.
TOPTION's 1L–100L laboratory rotary evaporators are designed for efficient solvent removal, ethanol recovery, concentration, and purification workflows. The dual-condenser configuration increases condensation area and collection capacity, helping reduce solvent loss during vacuum evaporation. Optional recirculating chillers, vacuum pumps, and vacuum controllers are available to build a complete evaporation system. Standard models can be prepared for shipment within 7 working days, subject to stock availability and final configuration
Technical Specifications
| Item | RE-2000A | RE-3000A | RE-5000A |
|---|---|---|---|
| Model | RE-2000A | RE-3000A | RE-5000A |
| Rotational speed | LCD color display 0~310 rpm/min | LCD color display 0~310 rpm/min | LCD color display 0~200~310 rpm/min |
| Evaporation capacity | Max. 25 ml/min (H₂O) | Max. 27 ml/min (H₂O) | Max. 43 ml/min (H₂O) |
| Temperature adjustment range | Oil & water dual-use bathWater bath: RT~99°C ±0.5°COil bath: RT~210°C ±2°C | Oil & water dual-use bathWater bath: RT~99°C ±0.5°COil bath: RT~210°C ±2°C | Oil & water dual-use bathWater bath: RT~99°C ±0.5°COil bath: RT~210°C ±2°C |
| Heating bath material | Disposable Teflon composite pot with safety handle, heat insulation shell to prevent scalding, moderate volume, and rapid heating. | Same as RE-2000A | Same as RE-2000A |
| Heating bath size | Φ23 × 13 cm | Φ26 × 15 cm | Φ29 × 17 cm |
| Sample bottle | Intermittent left & right rotation; the intermittent time can be adjusted from 0 to 60s, which can be used for drying powder samples. | Same as RE-2000A | Same as RE-2000A |
| Lifting stroke | Touch type + handle type double automatic balance lifting, lifting stroke 150 mm; there is a fixed 60 mm safety distance at the end of the drop to prevent collision. | Same as RE-2000A | Same as RE-2000A |
| Temperature control | Microcomputer PID control, digital display | Same as RE-2000A | Same as RE-2000A |
| Temperature setting | Knob encoder, rotary input setting, large LCD display, convenient and quick | Same as RE-2000A | Same as RE-2000A |
| Safety performance | Fuse, heat-sensitive dry-burning preventer, automatic lifting of dry-burning sample bottle to the highest position, timing function 0–999 min. After reaching the predetermined time, the evaporator will automatically stop working. When the evaporator is abnormal, the main engine automatically lifts over temperature, the instrument automatically lifts the evaporating bottle, and the standby warning protection. | Same as RE-2000A | Same as RE-2000A |
| Heater | Totally enclosed heater, power 1.5 kW | Totally enclosed heater, power 1.5 kW | Totally enclosed heater, power 1.8 kW |
| Sample bottle usable capacity | 0.25–2 L | 0.25–3 L | 0.25–5 L |
| Sealing parts | Imported PTFE and special synthetic materials are selected, and the mold is synthesized by special process technology to enhance sealing, anti-corrosion and wear resistance. | Same as RE-2000A | Same as RE-2000A |
| Condenser tube | Vertical, three-layer ball-milled serpentine condenser tube with large condensation area, dripping point and anti-backflow design. Effectively improves work efficiency. | Same as RE-2000A | Same as RE-2000A |
| Condensing area | 0.18 m² | 0.21 m² | 0.31 m² |
| Use ambient temperature | 5°C~40°C | 5°C~40°C | 5°C~40°C |
| Factory configuration | Sample bottle:29# sample bottle 1L × 129# turn 29# openingSplash ball × 1Recycling bottle:S35 ball mill mouth collection bottle 1L × 1 | Sample bottle:29# eggplant bottle 1L × 1F50 flanged round bottom bottle 3L × 1Recycling bottle:S35 ball mill mouth collection bottle 2L × 1 | Sample bottle:29# eggplant bottle 1L × 1F50 flanged round bottom bottle 5L × 1Recycling bottle:S35 ball mill mouth collection bottle 3L × 1 |
| Input power | AC220V/50Hz | AC220V/50Hz | AC220V/50Hz |
| Size & weight | Package dimensions: 71 × 64.5 × 51 cmInstrument size: 66 × 42 × 83 cmGross weight: 30 kg | Package dimensions: 71 × 64.5 × 79 cmInstrument size: 70 × 43 × 86 cmGross weight: 35 kg | Package dimensions: 78 × 69 × 85 cmInstrument size: 74 × 44 × 96 cmGross weight: 42 kg |
| Model | Rotating bottle capacity (L) | Collecting bottle capacity (L) | Temperature (°C) | Lifting method | Heating power |
|---|---|---|---|---|---|
| RE-5210A | 10L | 5L | RT-99 (170)±0.2 | Electric lift | 3KW |
| RE-5220A | 20L | 10L+3L | RT-99 (170)±0.2 | Electric lift | 5KW |
| RE-5230A | 30L | 10L+10L | RT-99 (170)±0.2 | Electric lift | 5KW |
| RE-5250A | 50L | 20L+10L | RT-99 (170)±0.2 | Electric lift | 7KW |
| RE-52100A | 100L | 50L+10L | RT-99 (170)±0.2 | Electric lift | 16KW |
Products Features
Working Principle
A rotary evaporator consists of a vacuum system, a heating bath, a condenser, and a rotating flask. The solvent or mixture to be separated is added to the flask and rotated in a heating bath. The vacuum system creates a low-pressure environment that allows the solvent or mixture to evaporate. The vapor then enters a condenser, where it is cooled and liquefied. The purified material is collected in a separate flask, leaving the unwanted residue in the original flask.
Advantages
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The modular design of the whole machine has Strong expansibility / easy assembly/maintenance.
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Stepless speed regulation / electronic speed regulation /brushless, constant speed operation.
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High-quality stainless steel.
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Electrical appliances can be equipped with the explosion-proof type.
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Intelligent temperature control/water oil dual purpose.
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High evaporation and high recovery
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Easy operation and reduced secondary evaporation
Applications
The pharmaceutical industry commonly utilizes vacuum rotary evaporators for drug formulation and purification, as well as for extracting active ingredients. The suitability of vacuum rotary evaporators for this industry lies in their ability to handle a wide variety of solvents and volumes, meeting the diverse needs of the pharmaceutical industry. They are not limited to crystallization, drying, concentration, separation, and solvent recovery, but can also perform continuous distillation of volatile solvents.
Rotary evaporators are also useful in environmental analysis for concentrating or extracting petroleum hydrocarbons, and their popularity in plant extraction stems from providing a safer alternative to solvent extraction methods. Not only does this method improve safety and efficiency, but it also helps remove and recover residual solvents under reduced pressure, supporting cleaner concentration and solvent recovery workflows.
In the extraction of essential oils, a vacuum rotary evaporator is to extract these oils from other plant substances. Essential oils are widely applied in aromatherapy, personal care items, and even in the food and beverage production sector. The process of extracting essential oils produces a higher concentration of essential oils, making them easier to incorporate into various products.
Furthermore, rotary evaporators have found use in the food and beverage industry, particularly in spirits production. By separating the different compounds in a mixture, rotary evaporators can create unique flavors, aromas, and textures. Bartenders and chefs use these evaporators as an ingredient in innovative cocktail and food recipes to generate new flavor combinations.
Certifications
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