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BUCHI™ Rotavapor™ RII Evaporation Systems

For quick, gentle and economical evaporation procedures without cutting corners

Manufacturer: buchi™  2422A0

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Vacuum pump or system and associated connections.

Catalog No. 05-401-953

 Please call Customer Service at 1-800-234-7437 or send an email to for assistance.

Description & Specifications


Capacity 4000mL (135.25 oz.)
Depth (English) 16.53 in.
Depth (Metric) 42cm
Height (Metric) 84cm
Height (English) 33.07 in.
Hertz 50/60Hz
Weight (Metric) 16 to 18kg
Weight (English) 35.2 to 39.6 lb.
Voltage 100/120V
Width (English) 23.62 in.
Width (Metric) 60cm
Taper 24/40
Capacity (English) 135.25 oz.
Capacity (Metric) 4000mL
Model RII
Speed 20 to 280rpm
Temperature Range (Metric) 20° to 95°C
For Use With (Application) Standard applications where height is limited
Material (Coating) Uncoated
Product Type Glass Assembly A Rotary Evaporator
Includes 1L Evaporating and receiving flask, diagonal condenser
Temperature Range (English) 68° to 203°F
Volume (Metric) 50 to 4000mL
Wattage 1700w
Electrical Requirements 100/120V 50/60Hz
Certifications CE, CSA, UL

Rotavapor RII delivers the same performance as other Buchi Rotavapors, with just the features you need. Rotating flask produces effective heat transfer while ensuring thorough mixing and avoiding overheating of contents.

Modular design, versatile operation

  • Choice of three condenser assemblies and two joint options; for 1 to 3L flasks
  • Handle evaporating flask sizes from 50 to 4000mL; receiving flasks from 500 to 3000mL
  • Kettle principle allows for quick removal of the water bath for easy cleaning