Yarong RE-6000A & RE-6000AA Automatic Lifting Rotary Evaporators

Overview

The Yarong RE-6000A and RE-6000AA are precision-engineered rotary evaporators designed for efficient solvent removal, concentration, and recovery under controlled reduced-pressure conditions. Based on the fundamental principle of thin-film evaporation—where a rotating flask generates a uniform, high-surface-area liquid film while immersed in a thermostatically regulated bath—the system enables rapid, gentle, and reproducible evaporation of heat-sensitive compounds. These instruments integrate vacuum-assisted boiling point depression with precise rotational control and intelligent thermal management, making them essential tools in synthetic chemistry, pharmaceutical process development, natural product isolation, and quality control laboratories. The RE-6000AA variant extends operational flexibility with dual-mode heating (water or oil bath), an upgraded PID temperature controller, and enhanced vacuum regulation capabilities—supporting applications requiring elevated bath temperatures up to 180 °C with ±2 °C accuracy.

Key Features

• Automatic lifting mechanism with smooth, shock-free vertical travel (0–180 mm stroke) driven by a reinforced lead-screw suspension arm—ensuring repeatable positioning and eliminating mechanical impact during flask immersion or removal.
• Dual-mode heating bath (RE-6000AA): seamless transition between water and silicone oil media, fabricated from imported seamless stainless steel with full-enclosure heating elements and integrated transparent safety shield for thermal insulation and contamination prevention.
• High-integrity sealing system utilizing PTFE-composite valves and custom-machined fluoropolymer gaskets—resistant to aggressive solvents, acids, and bases; supports continuous feed/discharge without interrupting rotation or vacuum.
• Intelligent digital control interface: LCD color display (RE-6000AA) or LED digital panel (RE-6000A) showing real-time values for rotation speed, bath temperature, vacuum pressure, and timer; menu-driven navigation with rotary encoder input.
• Integrated vacuum management: built-in electromagnetic valve with programmable setpoint control (−0.01 to −0.095 MPa absolute); automatic vacuum pump start/stop sequencing synchronized with evaporation cycles.
• Optimized condensation architecture: double-return standard-taper (ISO-K 29/32) borosilicate glass condenser with 0.22 m² effective cooling surface area; compatible with external chiller units for sub-ambient condensation.

Sample Compatibility & Compliance

The RE-6000A and RE-6000AA accommodate standard ISO-K ground-glass joints (75 mm outer diameter for the 6 L evaporation flask), ensuring interoperability with common laboratory glassware and accessories. Their construction adheres to IEC 61010-1:2010 safety standards for electrical equipment used in laboratory environments. While not certified for GMP manufacturing environments per se, the instruments support GLP-compliant workflows through stable parameter logging (via optional RS-232/USB output), traceable temperature calibration (NIST-traceable reference sensors available), and robust mechanical design suitable for daily QC/QA use. All wetted surfaces—including valves, seals, and condenser internals—are chemically inert and compliant with USP Class VI biocompatibility requirements for PTFE components.

Software & Data Management

Both models feature embedded microcontroller-based firmware enabling local data retention of up to 10 user-defined protocols, each storing target values for rotation speed, temperature ramp profiles, vacuum setpoints, and timed hold segments. Optional communication modules (RS-232 or USB-to-serial) allow integration with third-party LIMS or ELN platforms for automated parameter export and audit trail generation. Though no proprietary software suite is bundled, the devices transmit ASCII-formatted telemetry (e.g., “T=78.4°C|V=−0.082 MPa|R=85 rpm”) at configurable intervals—facilitating custom scripting for FDA 21 CFR Part 11–compliant electronic records when paired with validated acquisition software.

Applications

• Solvent recovery and concentration of reaction mixtures in organic synthesis labs.
• Removal of low-boiling solvents (e.g., dichloromethane, ethyl acetate, hexanes) from crude extracts prior to chromatographic purification.
• Lyophilization pre-concentration steps in biopharmaceutical sample preparation.
• Standardized evaporation protocols for residual solvent testing per ICH Q3C guidelines.
• Teaching laboratories requiring durable, intuitive instrumentation for undergraduate physical chemistry and separation science curricula.

FAQ

What is the maximum recommended operating temperature for the RE-6000A bath?
The RE-6000A is rated for ambient to 99 °C using water as the heating medium. Exceeding this limit may compromise seal integrity and accelerate bath corrosion.
Can the RE-6000AA operate continuously at 180 °C?
Yes—when filled with high-thermal-stability silicone oil (e.g., Dow Corning 200 Fluid, 50 cSt), the RE-6000AA maintains stable operation up to 180 °C with ±2 °C accuracy over extended durations.
Is the vacuum sensor calibrated and traceable?
The built-in piezoresistive vacuum transducer is factory-calibrated against NIST-traceable references; calibration certificates are available upon request for ISO/IEC 17025-accredited verification.
How is condenser efficiency affected by coolant temperature?
Condenser performance follows logarithmic cooling efficiency curves: reducing coolant inlet temperature from 15 °C to 5 °C typically improves solvent recovery yield by 12–18% for moderately volatile compounds (e.g., acetone, THF).
Are replacement PTFE valves and gaskets available as spare parts?
Yes—Yarong supplies OEM-certified PTFE valve assemblies (Part No. YR-VL-6000) and standardized ISO-K 75 mm gasket kits (Part No. YR-GK-75), both stocked globally via authorized distributors.