Yarong RE-2000A Automatic Lifting Rotary Evaporator (2 L Capacity)

Overview

The Yarong RE-2000A Automatic Lifting Rotary Evaporator is an engineered solution for efficient solvent removal, concentration, and recovery under reduced pressure in research laboratories, pharmaceutical development, and fine chemical synthesis environments. Operating on the principle of rotary evaporation—where a rotating flask increases surface area while immersed in a thermostatically controlled heating bath—the system enables rapid, gentle, and reproducible evaporation of heat-sensitive compounds. Its integrated automatic lifting mechanism (0–150 mm vertical travel) facilitates safe, repeatable flask immersion and removal without manual intervention, minimizing operator exposure to hot surfaces and vacuum hazards. Designed for compatibility with standard ground-glass joints (including 1000 mL and 2000 mL flasks), the RE-2000A supports scalable batch processing while maintaining consistent thermal and mechanical stability across extended operation cycles.

Key Features

• Motor-driven automatic lift system with tactile toggle switch actuation—enabling precise, hands-free flask positioning during evaporation and collection phases.
• Digital RPM display and adjustable speed control (10–200 rpm) with low-noise DC motor for stable rotation and minimal vibration-induced bumping.
• PTFE-sealed vapor pathway and high-wear-resistant vacuum tubing ensure long-term leak integrity and chemical compatibility with organic solvents, acids, and bases.
• Teflon-coated stainless steel water bath with fully enclosed 1.4 kW heating element; digital temperature controller maintains setpoint accuracy within ±1 °C from ambient to 99 °C.
• Integrated YRZK-10S vacuum controller: programmable target vacuum level, automatic vacuum pump start/stop logic, and real-time pressure feedback for process repeatability.
• Continuous feed capability via inline vacuum-rated valve—enabling uninterrupted solvent addition or reaction quenching without breaking vacuum or halting rotation.
• Robust aluminum-alloy mainframe and reinforced engineering polymer housing provide structural rigidity, corrosion resistance, and ESD-safe operation.

Sample Compatibility & Compliance

The RE-2000A accommodates standard ISO/KG 24/29 and 29/32 ground-glass jointed glassware, including dual-flask configurations (1 L and 2 L). Its 0.15 m² condenser surface area—comprising a double-layer vertical coil design—ensures high-efficiency reflux under typical laboratory vacuum conditions (down to 0.09 MPa absolute). The system complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and meets CE marking requirements for EMC and low-voltage directives. While not certified for GMP manufacturing use out-of-the-box, its digital temperature and vacuum logging capabilities (when paired with external data acquisition systems) support GLP-aligned documentation practices. Vacuum controller setpoints and bath temperature logs can be manually recorded for audit trails per ISO/IEC 17025 and FDA 21 CFR Part 11–compatible workflows when interfaced with validated software platforms.

Software & Data Management

The RE-2000A operates as a standalone instrument with embedded digital controls—no proprietary software is required for basic operation. All critical parameters (bath temperature, rotation speed, vacuum setpoint) are displayed locally via LED indicators and push-button interface. For traceability, users may integrate optional RS-485 or analog 4–20 mA output modules (available as field-upgrade kits) to feed real-time operational data into LabVantage, Empower, or custom SCADA systems. The YRZK-10S vacuum controller retains last-set parameters after power cycling and supports manual override for emergency venting. Firmware updates (if released) are delivered via USB flash drive—no cloud connectivity or remote access is implemented, preserving network security and data sovereignty in regulated environments.

Applications

• Solvent recovery and concentration of natural product extracts in phytochemistry and nutraceutical R&D.
• Removal of low-boiling solvents (e.g., dichloromethane, ethyl acetate, hexane) following column chromatography or extraction protocols.
• Preparative-scale concentration of peptide synthesis reaction mixtures prior to lyophilization.
• Distillation of thermally labile intermediates in API process development where precise temperature control prevents decomposition.
• Educational demonstrations of phase behavior, vapor pressure–temperature relationships, and mass transfer kinetics in undergraduate physical chemistry labs.
• Recycling of spent reaction media in academic and industrial QC laboratories—reducing hazardous waste disposal volume and cost.

FAQ

What is the maximum recommended operating vacuum for continuous use?
The RE-2000A is rated for sustained operation at ≤0.09 MPa (≈90 mbar absolute); prolonged use below this threshold may reduce seal longevity and increase bumping risk without optimized bath temperature modulation.
Can the unit be operated with dry ice–acetone condensers?
Yes—the condenser inlet/outlet ports accept standard 10 mm OD tubing; users may retrofit cryogenic cooling loops, though the default water-cooled configuration is optimized for ambient-to-30 °C coolant supply.
Is the heating bath compatible with silicone oil or other high-temp fluids?
The Teflon-coated bath is chemically resistant to silicone oils up to 200 °C; however, the digital controller’s upper limit remains 99 °C—external PID controllers are required for higher-temperature operation.
Does the RE-2000A meet UL or CSA certification requirements?
It carries CE marking per EN 61010-1 and EN 61326-1; UL/CSA listing is not included but may be pursued via third-party evaluation for site-specific regulatory acceptance.
How is maintenance of the vacuum sealing system performed?
PTFE gaskets and O-rings are user-replaceable using standard M12 and M16 hardware; a maintenance kit (YR-MK-RE2K) includes spare seals, vacuum grease, and torque specifications for joint assembly.