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Rotary Evaporator Cooling


Rotary Evaporator Cooling


Choosing the right cooling method suitable for the evaporation process has a greater impact on the performance, economy and handling of the entire system than you initially believe. When purchasing a new rotary evaporator system or process changeover, the choice of the cooling system is one of the key decisions that not only determines the subsequent throughput but also the work processes in the laboratory. Economic factors such as payback period and running costs, as well as sustainability should also be considered and taken into account when deciding for or against a variant for cooling.


Rotary Evaporator Cooling Technology And Solutions

Rotary evaporator is a commonly used equipment in the laboratory, mainly used for continuous distillation of a large amount of volatile solvents under reduced pressure. Especially for the concentration of the extract or the distillation of the receiving liquid during chromatographic separation, the reaction product can be separated and purified. The basic principle of the rotary evaporator is distillation under reduced pressure, that is, under reduced pressure, the distillation flask rotates continuously to evaporate the solvent.

Condensation is an essential step when using a rotary evaporator for operation. In the experiment, the faucet is usually directly connected to the condenser through a water pipe, and water is passed through the faucet for condensation, and the condensed water is passed directly to the condenser. To the pool, discharged into the sewer, this condensation method can only be used for one-time use of water, which is a waste of water resources. Therefore, we have designed a rotary evaporator with a circulating water refrigeration device, which can allow the condensed water discharged after absorbing heat to return to the condenser for condensation after the cooling effect of the circulating water refrigeration device cools down, so as to realize water recycling, saving water resources, and the cooling speed is fast, and the cooling effect is good.

Choosing the right cooling method for an evaporation experiment can have an unimaginable impact on overall system performance, economy, and efficiency. As a necessary stage of the distillation process, the commonly used condensation methods currently include: using dry ice condensers, equipping or building a cooling system, and using tap water for steam cooling. But in most cases, it is necessary to purchase a refrigerated circulator as supporting equipment.

When the refrigerated circulator is running, it cools the coolant filled in the water tank through its refrigeration system, and the built-in pump pumps the coolant into the condenser pipe to absorb the heat of the steam in the condenser to achieve the effect of condensation. The coolant with elevated temperature flows back to the water tank to cool down again. In this way, the cooling is circulated and exchanged to provide a stable condensation temperature for the rotary evaporation system, while effectively avoiding seasonal temperature fluctuations that may occur when tap water is used. Moreover, choosing an efficient and environmentally friendly chiller to replace tap water for cooling will also help the laboratory save water.

Important factors to consider when choosing the recirculating chiller:

  • Minimum condensation temperature and corresponding cooling capacity
  • Cycle pressure
  • Circulation flow
  • Suitable accessories

Rotary Evaporator Cooling




water chillerPrecision Chillers / Small Chillers (Custom Designs)

The chiller can be widely used in various industries and laboratories, and supports customized design.

Temperature range -18°C ~ +30°C +5°C ~ +35°C series
Cooling Capacity0.35 ~ 0.9kW1.8 ~ 50kW



recirculating chiller

Recirculating Chillers (Custom Designs)

Our recirculating chiller adopts low-temperature refrigeration technology, the temperature is as low as -120℃, and various accessories are customizable.

Temperature range -25°C ~ +30°C series -45°C ~ +30°C series -60°C ~ -20°C series -80°C ~ -20°C series -120°C ~ -70°C series
Cooling Capacity0.8 ~ 30kW0.75 ~ 12kW0.4 ~ 6kW0.2 ~ 6kW0.3 ~ 5kW



low temperature chiller

Low Temperature Chillers (Custom Designs)

We specialize in the production of low-temperature chillers with a temperature control range as low as -150°C, which can meet the refrigeration needs of different industries.

Temperature range -25°C ~ -5°C series -45°C ~ -10°C series -60°C ~ -10°C series -80°C ~ -30°C series-110°C ~ -50°C series -150°C ~ -110°C series
Cooling Capacity12 ~ 360kW6 ~ 180kW6 ~ 180kW4 ~ 180kW2 ~ 120kW2.5 ~ 11kW


Chillers/Heaters Combo


Chiller/Heater Units

Chiller/Heater Units

Temperature Control Range: -120°C to +350°C

Note: Both Air Cooled And Water Cooled Are Available. Explosion Proof Cabinet Can Be Customized.

Temperature range -40 ~ +200°C series -10 ~ +200°C series -25 ~ +200°C series -25 ~ +300°C series -45 ~ +250°C series -45 ~ +300°C series -60 ~ +250°C series -60 ~ +300°C series -70 ~ +250°C series -80 ~ +250°C series-90 ~ +250°C series -100 ~ +100°C series -25 ~ +200°C one machine for two reactors -40 ~ +200°C one machine for two reactors
Cooling Capacityup to 3kWup to 15kWup to 200kWup to 200kWup to 200kWup to 25kWup to 60kWup to 25kWup to 15kWup to 80kWup to 80kWup to 80kWup to 10*2kWup to 10*2kW



Recirculating Heater/Chiller

Recirculating Heater/Chiller

Temperature Control Range: -45°C to +250°C

Note: Both Air Cooled And Water Cooled Are Available. Explosion Proof Cabinet Can Be Customized.

Temperature range -25°C ~ +200°C series -45°C ~ +250°C series
Cooling Capacityup to 15kWup to 15kW


Cooling and Heating Systems

Cooling and Heating Systems (WTD series) (Custom Designs)

(Micro channel / tube reactors specialized)

Temperature Control Range: -70°C to +300°C

Specialized design for micro channel (small liquid holding capacity, strong heat exchange capacity, circulation system high pressure drop)


Temperature range -70°C ~ +300°C -45°C ~ +250°C -70°C ~ +200°C
Cooling Capacity1.1 ~ 7.5kW1.5 ~ 5.5kW11 ~ 50kW



Heating Circulators

Temperature Control Range: +50°C to +300°C

Note: Both Air Cooled And Water Cooled Are Available. Explosion Proof Cabinet Can Be Customized.

Temperature range +50°C ~ +200°C series +50°C ~ +300°C series +50°C ~ +300°C series
Heating Capacityup to 38kWup to 200kWup to 95kW



Contact Us For More  Information

Email:    WeChat ID: +8615251628237    WhatsApp: +86 17851209193


Why Choose Us?

LNEYA is a professional temperature control equipment manufacturer with decades of experience in research and development in the field of high and low temperature control, and its products are used in various industries. We can design any temperature control system according to your requirements, whether it is accessories: pumps, heat exchangers, condensers, etc., or refrigeration types: air-cooled, water-cooled, multiple cooling circuits, etc.


Our Services

Customized Designs—Our products can be built in any type of variation to your exact specifications.

Competitive Pricing—We offer great prices on equipment that exceeds industry standards, guaranteeing the highest quality.

Same Day Quotes—Get a quote for your project today! We often provide custom quotes in as little as 30 minutes.

24/7 Customer Service—We are always here for you. Whether you have a question or need a quote, there’s always somebody here to communicate with you 24/7.

Durable and Reliable Equipment—Our products are built with premium-grade materials, and we offer competitive warranties on all custom chillers.


Contact Us Today

Contact us today and learn more about our abilities in manufacturing custom chillers. Our staff welcomes any application challenges concerning your custom chillers.

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