Rotavapor® R-250 EX

EX-protection fulfilling highest safety levels

Safety comes first! Especially when it comes to the Rotavapor® R-250 EX! The EX-protection is designed to fulfill the harshest working environment needs. Experience the highest safety level of industrial distillation with a flask size of up to 50L.

  • Distillation rate:up to 19 L Ethanol/hour
  • Heating bath temperature:up to 150 °C (T3)
  • Sample size:max. 25 L per batch
Rotavapor® R-250 EX

User safety first

Fulfilling the highest user safety levels is a non-negotiable in industrial distillation processes. Therefore, the Rotavapor® R-250 EX is designed for absolute safe operation in harsh working environments: ATEX approved for highest safety level; immediate shut-down due to safety cut-off; extended functionality and safety with a wide range of accessories; optional Ex-proof vacuum pump and safe handling and spring-loaded valves protect the glass.

User safety first

Smooth operation

Integrated vacuum controller, large and easily readable display and unique flask coupling come together in the Rotavapor® R-250 EX to provide you with smooth and intuitive product handling and operation. 

Smooth operation

Long lifetime

The manufacturing of the Rotavapor® R-250 EX involves the use of high-quality materials like corrosion-free stainless steel and highly resistant chemical materials to ensure the long lifetime of the product.

Long lifetime


  • BUCHI offers a robust system to allow an easy and intensive use even under harsh conditions. Your Rotavapor® R-250 EX long lifetime is ensured thanks to smart system design.

  • Easily find the optimal setup for your application thanks to a broad variety of glass assemblies offered by BUCHI.

  • With an easy and intuitive control panel, BUCHI ensures your fast and easy system operation. By adding a flask handler to your configuration, you avoid the hassle and difficulties of handling your 50 L evaporating flask. 

  • BUCHI uses inert material with superior quality to gurantee the quality of your results. 

  • The ethanol distillation rate with the rotary evaporator R-250 EX can reach up to 19 L per hour. 

  • The Rotavapor® EX certification complies with current stringent regulations. BUCHI has a close collaboration with experts in the field in order to offer the best and safest solutions. 


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Benefit from decades of expert knowledge

In 1957 BUCHI introduced the first commercial rotary evaporator. With our technological expertise and profound customer interaction, we have continuously developed the Rotavapor® to an ever smarter and fully integrated system. Our carefully conceived solutions meet the needs of a wide range of industries, whether you operate in R&D or production.
  • Chemical

    In the chemical industry a wide range of applications can be performed with an industrial Rotavapor®: Concentration, Drying, Solvent Recycling.

  • Pharmaceutical

    The pharmaceutical industry has a need for an evaporation solution that covers a wide range of applications. The rotary evaporator is the best choice for gentle evaporation: Concentration, Drying, Re-crystallization, Synthesis.