AI SolventVap 5.3-Gallon/20L Rotary Evaporator w/ Motorized Lift
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SKU: AI-113

AI SolventVap 5.3-Gallon/20L Rotary Evaporator w/ Motorized Lift

Availability: In stock -30 Items
$ 9,500.00

A rotary evaporator is a device used in chemical laboratories for the efficient and gentle removal of solvents from samples by evaporation. Rotary evaporation is most often and conveniently applied to separate "low boiling" solvents such as n-hexane or ethyl acetate from compounds which are solid at room temperature and pressure. However, careful application also allows removal of a solvent from a sample containing a liquid compound if there is minimal co-evaporation (azeotropic behavior), and a sufficient difference in boiling points at the chosen temperature and reduced pressure.


Example:The following table is a list of a variety of substances ordered by increasing vapor pressure (in absolute units).

The new Ai SolventVap 5.3-gallon/20L/0.7 cu ft (evaporating flask capacity) series rotary evaporators come with a modular heating bath, vertical glassware, and digital temperature/rotation control, with optimized bath volume allows for fast heat-up times. The condenser unit has special designed glass tubes that utilize surface extremely efficient. That’s why our SolventVap delivers reliable and reproducible process results that are usually reserved for more costly systems. Another important aspect of the SolventVap are the safety features, including dry-run protection, water bath over-temp shut-off protection, and fuse protection.

Rotary evaporator features a specially designed motor and worm gear to provide constant rotation at speeds from 10 to 130 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 that is effected by heating from the water bath. The rotating system is fitted with a special seal that allows the apparatus to be placed under vacuum. This reduces the boiling point of the solvents and removes the vapor phase making the process much more efficient. Each unit is also provided with an easy to use vacuum release and a continuous feed system, which allows more solvent to be drawn into the rotating flask without the need to stop the operation.

Digital water bath operates from ambient to 99°C (210°F) with PID temperature control stepping at 0.1°C. Heating coils are located directly inside the pan for the most efficient heating. Built-in overheat protector shuts down power in case of controller failure.

Standard Glassware Set includes 5.28 gallon (20 liters) round-bottomed evaporating flask, 2.64 gallon (10 liters) round-bottomed receiving flask, and vertical condenser. Rotary evaporators with vertical glass condenser for are good for distillation of solvents with higher boiling points.


  • Solvent-resistant PTFE and Viton gaskets ensuring long time operation
  • Specialized motor and extremely compact intermeshed worm and worm gear provide precise driving, for very quiet and vibration free operation
  • Downward condenser vacuum connector design ensures safe vacuum operation
  • Precise control with motorized water bath lifting
  • Operate visually and easily with LCD speed and temperature display
  • PID temperature controller for accurate and flexible temperature control
  • One year warranty and life time US-based parts and service support

Caution! Users of rotary evaporation equipment must take precautions to avoid contact with rotating parts, particularly entanglement of loose clothing, hair, or necklaces. Under these circumstances, the winding action of the rotating parts can draw the users into the apparatus resulting in breakage of glassware, burns, and chemical exposure. Extra caution must also be applied to operations with air reactive materials, especially when under vacuum. A leak can draw air into the apparatus and a violent reaction can occur.


 Electrical requirements
 220V 50/60Hz single phase, 29A, 6300 watt (rotation motor: 250 watts)
 Evaporating flask
 Capacity: 5.28 gallon (20 liters or 0.7 cu ft)
 Sealing flange: 4.9" diameter
 Rotation speed: 10 to 130 rpm
 Evaporating speed:
1.32 gallon/hour (water), 2.9 gallon/hour (alcohol)
 Receiving flask
 2.64 gallon (10 liters or 0.35 cu ft)
 Condenser  Glassware: Main + auxiliary triple-circulating cold traps, vertical
 Chilling fluid conneciton: 3/8" hose barb x 4 (2 on main + 2 on auxiliary)
 Working environment
 5 to 95°F
 Water bath
 Temperature range: ambient to 99°C (210°F)
 Temperature controller: digital
 Dimensions: 17.7" diameter x 10.2" depth x 12" height
 Material: stainless steel
 Media: water
 Number of heaters: three
 Drain port: one
 Exterior liner: rubber
 Lifting: motorized
 Maximum lifting distance: 7.5 inches
 Vacuum level  < 3 torrs
 Vacuum sealing  PTFE + Vinton gaskets
 Vacuum connection  3/8" hose barb x 1
 Safety  Dry-run, over-temp shut-off, built-in circuit breakers
 Shipping weight  238 Lb (evaporator), 130 Lb (glassware)
 Unit dimensions
 49 x 23.5 x 82.5" (WxDxH)
 Shipping dimensions  41 x 24 x 47" (evaporator), 34 x 29 x 31" (glassware) (WxDxH)


Vacuum pump options

 Welch 2.3 cfm oil free diaphragm chemical duty vacuum pump  


Recirculating chiller options

 Ai -40°F/C 30L/Min 48L Capacity PID Controlled Recirculating Chiller


Standard package

 Part description


Part image

 Ai SolventVap 5.3-gallon rotary evaporator and water bath
1 set
 Vertical main and auxiliary condensers, glass
2 pcs
 5.3G/20L/0.7 cu ft round shaped rotating evaporating flask, glass
1 pc
 2.64G/10L/0.35 cu ft round shaped receiving flask with 2 vacuum ports and 1 drain port, glass
1 pc
 Three-way tee flask, glass
1 pc
 Center glass tube and oring (pre-installed)
1 set 
 PTFE vacuum sealing kit (pre-installed) 2 pcs
 Condenser top vacuum port, glass
1 pc
 Elbow, glass
1 pc
 Receiving flask vacuum valve, glass 2 pcs
 Material feeding tube with valve, glass 1 pc  
 PTFE extension feeding hose 1 pc  
 Stainless steel pole 1 pc
 Mechanical vacuum gauge with 3 hose barb connectors 1 pc
 Rubber-wrapped condenser support and bracket 2 pcs
 Rubber-wrapped receiving flask support 1 pc
 Aluminum flanges with PTFE seal 5 sets
 PTFE drain valve
1 pc
 Chilling fluid connector x 4, vacuum connector x 1
5 sets
 Evaporating flask cap tightening tool
1 pc
 Allen key and inner hex screws 5 pcs
 User's manual 1 pc

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