Project Description


R-1050 50L Rotovap

  • Teflon(PTFE) and fluorine rubber double rotating seal, patent technology to ensure high vacuum.
  • The temperature control system, accurate and reliable.
  • The PTFE disscharge valve, corrosion resistance, no pollution.
  • We have two kinds of conventional and explosion-proof type, can be selected according to the experimental environment.
  • Price:$4500
  • Usually Ships in7-10 Days
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50l rotovap for lab

50l rotovap adopt the flask enlarge evaporation area under reduced pressure, to make the solution in bottle diffuse and evaporate, while the flask is rotating as it is heating in water bath. It is basic necessary and perfect equipment for the chemical industry, pharmaceutical industry, institutions of higher learning and scientific research laboratories used in the manufacture and analysis of experiments which concentrated, drying, recycling.

Essential-Oil-Distillation-Vacuum-Chiller-RotaryStructure of Rotary Evaporatorrotary

Rotovap features a specially designed motor and worm gear, which provides constant rotation at speeds from 10 to 180 rpm. As the flask containing the solvent is rotated, it continually transfers a thin layer of liquid over the entire inner surface. This gives a very large surface area for evaporation, which is caused by the gentle heating from the water bath. The rotating system is fitted with a special seal that allows the apparatus to be placed under vacuum, effectively reducing the boiling point of the solvents and removing the vapor phase, making the process much more efficient. Each unit is also equipped with an easy-to-use vacuum release and a continuous feed system, which allows solvent to be constantly drawn into the rotating flask without needing to stop the operation.


It is suitable for the experiment of evaporation, distillation or separation of chemicals. It usually works with water circulating vacuum pump and recirculating chiller as a whole system to meet the production and experimental conditions.

Features of  50l rotovap

  • Rotary evaporator set equip with 50L evaporating flask(detachable), and 20L collecting flask.
  • Rotary vacuum evaporator Under the vacuum condition, give the boil flask constant-temperature heating, it will  rotate at a constant speed, and liquid can form large area film on the bottle wall.
  • Rotary evaporator parts-the solvent vapor is cooled by a high efficiency glass condenser and recovered in the collection bottle, which greatly improves the evaporation efficiency.
  • Rotary evaporator is especially suitable for the concentration and purification of biological products which can easily decompose and denatured at high temperature.
  • Evaporator use polythene & rubber for sealing, ensure high vacuum and rotating speed adjustable(step-less): 0-90rpm.


  • Patented technology of double sealing of Teflon(PTFE) and FV rubber ensures the negative pressure level.
  • Automatic switch valve makes continuous collection possible without affecting vacuum degree and without stopping distillation.
  • Teflon discharge valve is corrosion resistant and contamination free.
  • Water bath jacket protecting operator from scalding by hot liquid.
  • Motorized water bath lifting for precise control.
  • Quick clamp connections for easy and fast installation.
  • PID temperature controller ensures accurate temperature control is maintained.
  • Optional stainless steel evaporating flask carrier with silicone cushions is designed for safer and easier loading and unloading of the flask. It can also be used as a flask stand.

Technical Specifications

Evaporating flask5L, flange opening: Φ50mm10L, flange opening: Φ95mm20L, flange opening: Φ125mm50L, flange opening: Φ125mm
Receiving flask(L)351020
Speed-regulationDC stepless speed-regulation
Power supply220V-240V, 50/60Hz3~, 380V, 50Hz
Overall power(kW)
Rotation speed (rpm)20~14020~13020~13020~110
Power of motor(w)250250250250
CondenserVertical type double coil pipeVertical type, Main + auxiliary triple-circulating cold traps
Bath materialStainless steel 304
Temperature rangeRT~99℃
Temperature displayDigital display
Evaporating Speed (L/h)(water)
Evaporating Speed (L/h)(Ethanol)5.48.614.324.5
Lifting functionMotorized LiftMotorized lift + Manual lift
Elevating stroke(mm)0~1500~1600~1900~180
Net Weight(kg)6085115200

Rotovap Details

Structure of Rotovap

Factory display

Our Factory


Our Service

Pre-sale Service

  1. Provide 24-hour technical consulting reply;
  2. Provide professional quoted price;
  3. Provide detailed product performance specification;
  4. According to product’s using condition, technicians will offer rationalization proposals to assist clients to select proper product types;
  5. Provide other corollary equipment according to client requirements.

In-sale Service

  1. Begin to supervise from raw material, its qualified rate can reach to 100%;
  2. Whole manufacturing process are in strict accordance with promised procedure requirements, product qualified rate can reach to 100%;
  3. Provide product’s inspection record of key junctures to customers;
  4. Provide production schedule photos to customers at regular intervals;
  5. Package and transport products strictly accordance with export standard;
  6. Provide transportation schedule information to clients timely.

After-sale Service

  1. Provide targeted installation video;
  2. Under the premise of correct installation, normal maintenance and using, we guarantee one-year warranty period;
  3. When warranty period has expired, our sold products enjoys lifetime guarantee repair, we only charge cost price for changing product’s standard component and sealing component;
  4. During installation and adjustment period, our after-sale service staff will communicate with customers frequently to know product’s running state in time. Assist customers to install and adjust products until customers are satisfied;
  5. If product has malfunction during operation period, we’ll offer you satisfied answer in time. We’ll reply you within 1 hour and provide solution or send staff to spot within 24 hours after receiving maintenance notification.
  6. Lifelong free technical support. Conduct satisfaction survey and inquiry equipment running condition to clients by telephone or e-mail semiannually from the first day of equipment running, put on records of acquired information;
  7. Provide assistant service if product is damaged during transportation.

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