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The Alchemist production rotary evaporator is used whenever benchtop system capacity is no longer sufficient. Featuring a large capacity 20 Liter evaporation flask and capable of evaporating 4L/h water and 11L/h of ethanol.

The in-process product feed and waste discharge valve system allow for continuous distillation. Our PID controller enables accurate process control and is extremely easy to use. The bath temperature of up to 180℃ covers all common solvents and even allows for in-evaporator decarboxylation if required.




Features & Benefits:

Continuous evaporation possible thanks to in-process feed and drain setup
Large digital LCD display with bath temperature, rotation speed, rotation direction and time
One-click automatic motor lift
Water/oil heating bath with wide temperature range from ambient to 180 °C
Flask speed range from 10 to 150 rpm with interval operation and rotation direction select
Double-layer high-efficiency condenser with large condensation area for high evaporation performance and solvent recovery rates
Patented PTFE double sealing vapor tube seal with excellent performance


CE Certified
Safety coated glassware to protect users in case of glass breakage
Temperature overheat protection at 220 °C
Run-dry protection, automatically powers off if operating without any water/oil in the heating bath
Automatic motor lift releases the evaporating flask to a safe position in case of power failure


Power Specification 220V 50/60Hz 1ph – 4600W
Size 20 L
Temperature Range ambient to 180 ℃ ( water and oil mode)
Temperature Control Accuracy Water: ± 1 ℃
Oil: ± 3 ℃

Rotation Speed 10 – 150 rpm
Evaporation Performance max. 4.0 L/h for water, 11 L/h for ethanol
Ultimate Vacuum < 2.6 mbar Temperature Control Method Microprocessor PID Control Display LCD temperature / flask rotation speed / flask rotation direction / time Safety Features Motor Overcurrent Protection, Residual Current Device, Lifting Overload Protection, Boil-dry Protection, Over-Temperature Protection Sample Flask Round flask 20L Receiving Flask Round Flask 10L with Drain Valve Condenser Two-Section Vertical Triple Serpentine Condenser, Cooling Surface 1.2m2 Heating Bath Size φ 450×240mm Connectors Cooling /Suction Nozzle Outer Diameter 16mm, Vacuum Pump nozzle outer diameter 16mm Dimension [D×W×H] 1160mm×600mm×1860mm

Additional information

Weight 193 kg
Dimensions 102 × 95 × 123 cm