Rotavapor® R-220 EX & R-250 EX – ATEX-Compliant Rotary Evaporators for Explosion Hazard Zones

The Rotavapor® R-220 EX and R-250 EX by BÜCHI Labortechnik AG are high-performance industrial rotary evaporators, specifically designed for safe solvent evaporation in ATEX-certified explosion-proof environments. Both models meet stringent safety regulations, combining operational reliability, ease of use, and robust construction for demanding applications in chemical and pharmaceutical industries.

Key Benefits:

• ✅ EX-Safety Certified
  Certified for ATEX II 2G. Integrated safety features include automatic system shutdown in case of error and electrostatic discharge prevention for maximum user protection.
• ✅ User-Friendly Operation
  Integrated EX vacuum controller, clear digital display, and ergonomic flask coupling ensure safe and intuitive operation—even with large-volume flasks.
• ✅ Long-Term Reliability
  Built from corrosion-resistant stainless steel (AISI 304/316L) and borosilicate glass 3.3. Designed for continuous 24/7 operation with minimal maintenance.
• ✅ Flexible Configuration
  Wide range of glass assemblies (e.g., D2, RB2), flask volumes up to 50 L, and optional EX-proof accessories (e.g., bath shields, vacuum pumps, flask lifters).

Typical Applications:

• Pharmaceutical production – safe solvent removal from extracts and formulations
• Organic synthesis – handling of large-volume reaction batches
• Chemical industry – solvent recovery and distillation in hazardous environments
• Natural extraction – concentration of plant-based extracts under EX conditions

Technical Comparison:

Specification - R-250 EX

Evaporating flask volume: up to 20 L

Distillation rate (ethanol): up to 13.5 L/h

Bath temperature range: up to 135°C (T4) / 150°C (T3)

Heating power: 4200 W

Rotation speed: 0–100 rpm 

Power supply: 200–400 V, 50/60 Hz

EX certification: Ex II 2G Ex db eb h ib IIC T3/T4 Gb

Specification - R-250 EX

Evaporating flask volume: up to 50 L

Distillation rate (ethanol): up to 19 L/h

Bath temperature range: up to 135°C (T4) / 150°C (T3)

Heating power: 6600 W

Rotation speed: 0–100 rpm 

Power supply: 400–440 V, 50/60 Hz

EX certification: Ex II 2G Ex db eb h ib IIC T3/T4 Gb

Looking for a safe, high-capacity rotary evaporator for hazardous zones?
Contact us today to configure your ideal Rotavapor® EX system, perfectly tailored to meet your ATEX requirements and process specifications.