BUCHI R-80 Rotary Evaporator System

Overview

The BUCHI R-80 Rotary Evaporator System is an ultra-compact, benchtop-scale solvent removal platform engineered for precision, space efficiency, and operational robustness in modern analytical, synthetic, and quality control laboratories. Based on the fundamental principle of reduced-pressure distillation—where lowering the system pressure decreases the boiling point of solvents—the R-80 enables gentle, efficient evaporation of heat-sensitive compounds without thermal degradation. Its integrated design adheres to core engineering tenets of rotational evaporation: controlled sample rotation (to increase surface area and promote uniform film formation), regulated heating (via a thermostatically stabilized water bath), precise vacuum management (down to 10 mbar), and efficient condensation (facilitated by a large 1300 cm² cooling surface). As the smallest commercially available rotary evaporator from BUCHI, the R-80 delivers full functionality within a footprint of just 345 mm width—making it ideal for confined fume hoods, modular lab benches, or multi-instrument workstations where spatial constraints are critical.

Key Features

• Ultra-compact footprint (345 mm width) with adjustable main unit tilt angle—reducing effective benchtop depth and enabling optimal integration into space-limited environments.
• Ergonomic manual lift mechanism engineered for long-term smooth operation under variable load and ambient conditions; requires no external power and maintains consistent mechanical integrity over extended service life.
• Rotatable user interface (0°–90° swivel range) for unobstructed access to all controls regardless of installation orientation or adjacent equipment layout.
• Cable and tubing management integrated directly into the chassis—minimizing clutter, enhancing operator safety, and supporting GLP-compliant documentation workflows.
• One-hand quick-release spring clamp for rapid, tool-free evaporation flask mounting and removal—compatible with standard ISO-K 29/32 and 24/29 ground glass joints.
• Versatile cable-free water bath with horizontal leveling adjustment—accommodates 1 L flasks and optional anti-bumping granules or boiling chips; temperature stability ±0.5 °C across 20–95 °C range.
• Chemically resistant VS22 sealing system using PTFE-coated elastomers—designed for compatibility with aggressive solvents including chlorinated hydrocarbons, acetone, ethyl acetate, and low-pH aqueous mixtures.

Sample Compatibility & Compliance

The R-80 supports standard laboratory glassware configurations (e.g., 1 L round-bottom flasks, 500 mL receiving flasks) and accommodates diverse sample matrices—including organic extracts, polymer solutions, natural product fractions, and pharmaceutical intermediates. Its vacuum control architecture interfaces seamlessly with BUCHI V-80/V-180 vacuum controllers and I-80/I-180 intelligent interfaces, enabling programmable vacuum ramps and real-time pressure feedback. The system meets key international design and safety benchmarks: CE marking per EU Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU; conformity with IEC 61010-1 for electrical safety in laboratory equipment; and alignment with ISO 9001-certified manufacturing processes at BUCHI’s Swiss production facility. While not inherently 21 CFR Part 11 compliant as a standalone device, its digital interface options support audit-trail-ready data capture when paired with validated BUCHI LabX software.

Software & Data Management

When connected to BUCHI LabX software via USB or Ethernet, the R-80 becomes part of a fully traceable evaporation workflow. LabX provides centralized method storage, electronic signature support, automatic parameter logging (rotation speed, bath temperature, vacuum setpoint, runtime), and export to CSV or PDF formats for regulatory submission. All data entries include timestamps, user IDs, and change history—enabling compliance with GLP and GMP documentation requirements. Method templates can be locked, version-controlled, and distributed across multiple R-80 units within a single facility, ensuring inter-operator consistency and reducing procedural deviation risk.

Applications

• Concentration of natural product extracts prior to HPLC or GC-MS analysis.
• Solvent exchange in peptide synthesis and oligonucleotide purification workflows.
• Removal of residual solvents from API batches in pre-formulation studies.
• Routine QC testing of excipient solubility and formulation stability.
• Teaching laboratories requiring intuitive, maintenance-light evaporation platforms with minimal infrastructure demands.

FAQ

What is the maximum recommended flask size for the R-80?
The R-80 is rated for use with up to 1 L round-bottom flasks, supported by its optimized rotation dynamics and bath geometry.
Can the R-80 operate under inert atmosphere conditions?
Yes—when coupled with a BUCHI V-80 vacuum controller and appropriate gas dosing module, the system supports nitrogen or argon purging during evaporation.
Is the water bath compatible with silicone oil or other high-temperature media?
No—the R-80 water bath is designed exclusively for aqueous operation up to 95 °C; alternative heating baths require external integration.
Does the R-80 include vacuum pump compatibility guidance?
Yes—BUCHI specifies compatibility with diaphragm pumps (e.g., V-800 series) and recommends minimum ultimate vacuum performance of ≤10 mbar for optimal solvent removal kinetics.
How often should the VS22 seal be replaced under typical usage?
Under normal operation with non-aggressive solvents, the PTFE-enhanced seal typically exceeds 12 months of service; replacement intervals should be verified per internal SOPs and visual inspection protocols.