Rotary evaporator for large-scale industrial distillation
Achieve precise separation and concentration with a rotary evaporator designed for safe operation in explosive environments, ensuring high throughput and maximum purity for critical processes.

Processes and Recovers Solvents in Industrial Settings
The Rotavapor R-250 EX from BUCHI Labortechnik is an industrial rotary evaporator designed for high-capacity solvent recovery and purification in chemical and pharmaceutical industries. It operates using an advanced rotary evaporation process with integrated vacuum control, enabling precise solvent removal and concentration tasks. With a distillation rate of up to 19 liters of ethanol per hour, the R-250 EX manages large batch sizes, accommodating up to 50 liters in flask capacity. It ensures user safety with ATEX certification and features a safety cut-off for immediate shutdown in hazardous conditions.
The R-250 EX seamlessly integrates into existing production lines, supporting applications like API purification, specialty chemical concentration, and biotechnology reagent extraction. Its robust design includes corrosion-resistant stainless steel components, and optional Ex-proof vacuum pumps enhance safety in explosive environments. The equipment’s modular nature allows customization of glass assemblies for various operational needs, while its energy-efficient operation reduces overall consumption. Suitable for both batch and continuous processes, the Rotavapor R-250 EX offers a reliable solution backed by engineering support for tailored installations and maintenance needs.
Benefits
- Enhances safety with ATEX-certified operation in hazardous environments.
- Optimizes solvent recovery efficiency, achieving higher purity levels.
- Accommodates large batch processing, reducing operational bottlenecks.
- Minimizes maintenance needs with corrosion-resistant materials.
- Supports diverse applications, expanding production versatility.
- Applications
- Chemical,Biopharmaceuticals,Fine chemicals,Pharmaceutical
- End products
- Biotechnology reagents,Drug formulations,Organic compounds,Specialty chemicals,Active pharmaceutical ingredients (apis),Cosmetic extracts,Nutraceuticals,High-purity solvents,Biological macromolecules,Vaccine components
- Steps before
- Emulsification,Purification,Grinding
- Steps after
- Concentration,Drying,Solvent Recycling
- Input ingredients
- ethanol,liquid samples,chemical substances,industrial samples
- Output ingredients
- distilled ethanol,concentrated solutions,recycled solvents
- Market info
- Buchi is renowned for its expertise in laboratory and industrial solutions, particularly in producing high-quality equipment for chemical analysis and lab processes, known for precision and reliability in the pharmaceutical, chemical, and food industries.
- Distillation Rate
- up to 19 L Ethanol/hour
- Heating Bath Temperature
- up to 150 °C (T3)
- Sample Size
- max. 25 L per batch
- Flask Size
- up to 50L
- Vacuum Pump Capacity
- 3.7 m³/h
- Final Vacuum
- 3 mbar
- Flask Material
- Borosilicate glass 3.3
- Evaporating Flask Size
- 50 liter
- Integration of vacuum control
- Integrated vacuum controller
- User interface
- Large and easily readable display
- Flask operation
- Unique flask coupling for intuitive handling
- Batch operation
- Suitable for up to 25 L per batch
- Safety features
- Immediate shutdown due to safety cut-off
- EX-protection
- ATEX approved
- Continuous operation capacity
- 24/7 operation under harsh conditions
- Material durability
- Corrosion-free stainless steel
- Versatility in glass assemblies
- Broad variety of glass assemblies available
- Ease of use
- Easy and intuitive control panel
- Safe handling of flasks
- Manual handler for easy mounting and transport
- Distillation rate
- Up to 19 L Ethanol per hour
- Corrosive resistance (e.g. acids)
- High resistance
- Cleanability
- Easy cleaning procedures
- Abrasion resistance
- Yes
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Flask size
- Maximum 50 L
- Sample size
- Maximum 25 L per batch
- Heating bath temperature
- Up to 150 °C (T3)
- Control panel type
- Easy and intuitive control panel
- Flask size
- Up to 50 L
- Vacuum controller
- Integrated vacuum controller
- Glass assemblies
- Variety of glass assemblies available
- Ex-proof configuration
- Optional Ex-proof vacuum pump