Yarong RE-3000B Rotary Evaporator
| Brand | Yarong |
|---|---|
| Origin | Shanghai, China |
| Model | RE-3000B |
| Lift Mechanism | Motorized vertical adjustment (0–150 mm) |
| Rotational Speed Range | 0–200 rpm |
| Water Bath Capacity | 8 L |
| Compatible Flask Sizes | 50–3000 mL |
| Heating Power | 1.2 kW |
| Temperature Control Range | Ambient to 99 °C |
| Temperature Accuracy | ±1 °C |
| Condenser Surface Area | 0.15 m² |
| Evaporation Rate (H₂O) | ≥1.2 L/h |
| Motor Power | 40 W |
| Voltage/Frequency | 220 V / 50 Hz |
| Bath Material | PTFE-coated stainless steel |
| Safety Features | Full transparent polycarbonate safety shield |
| Display | Digital temperature readout with auto-control |
Overview
The Yarong RE-3000B Rotary Evaporator is an engineered solution for efficient solvent removal, concentration, and recovery under reduced pressure in research laboratories, pharmaceutical development facilities, and chemical synthesis environments. Based on the principle of rotary evaporation—where a rotating flask increases surface area while simultaneous heating and vacuum application lower the boiling point of solvents—the RE-3000B delivers consistent, reproducible performance across diverse sample matrices. Its design emphasizes operational stability, thermal uniformity, and user safety, making it suitable for routine QC workflows as well as exploratory R&D protocols requiring precise control over evaporation kinetics.
Key Features
- Motorized Vertical Lift System: Equipped with a boat-shaped push-button actuator enabling rapid, smooth, and repeatable elevation adjustment over a 0–150 mm travel range—critical for optimizing condensation efficiency and preventing bumping during volatile solvent removal.
- Precision Temperature Control: Digital PID-based thermostat maintains bath temperature within ±1 °C across a programmable range from ambient to 99 °C, ensuring accurate thermal input without overshoot or drift.
- PTFE-Coated Stainless Steel Bath: Corrosion-resistant, non-stick heating reservoir accommodates up to 8 L of bath fluid and supports uniform heat distribution for stable thermal coupling with flasks ranging from 50 mL to 3000 mL.
- High-Efficiency Condensation: Large-surface-area (0.15 m²) dual-layer condenser with optimized coolant flow path maximizes vapor capture, particularly for low-boiling-point solvents such as diethyl ether, acetone, and dichloromethane.
- Integrated Safety Enclosure: Full-height transparent polycarbonate shield provides physical barrier protection against splashes and accidental contact while maintaining full visibility of the evaporation process.
- Low-Noise Drive Motor: 40 W brushless DC motor delivers quiet, vibration-minimized rotation (0–200 rpm), supporting both gentle handling of heat-sensitive compounds and robust operation during high-throughput batch processing.
Sample Compatibility & Compliance
The RE-3000B is compatible with standard ground-glass jointed glassware (e.g., ISO KF 24/29, 29/32, 35/20) and accepts common round-bottom flasks, pear-shaped flasks, and short-path distillation assemblies. It supports applications compliant with ASTM E260, ISO 6425, and USP <721> for residual solvent analysis. While the unit itself does not carry CE or UL certification out-of-the-box, its electrical architecture (220 V / 50 Hz) conforms to IEC 61010-1 safety standards when operated within specified environmental conditions (indoor use, non-explosive atmosphere, ambient humidity ≤80%). For GLP/GMP-regulated environments, users may integrate external vacuum controllers and data loggers to meet audit requirements for parameter traceability.
Software & Data Management
The RE-3000B operates as a standalone analog-digital hybrid instrument with no embedded microprocessor or network interface. All operational parameters—including bath temperature setpoint, rotation speed, and lift position—are manually configured via front-panel controls and displayed in real time on an LED screen. To support digital workflow integration, third-party data acquisition systems can be connected via optional analog output modules (0–10 V or 4–20 mA signals for temperature and speed). This architecture enables compatibility with laboratory information management systems (LIMS) and electronic lab notebooks (ELN) when paired with appropriate signal conditioning hardware and validated configuration protocols.
Applications
- Solvent removal from reaction mixtures in organic synthesis and catalysis studies
- Concentration of natural product extracts (e.g., plant alkaloids, essential oils, polyphenols)
- Recovery and recycling of high-purity solvents in analytical sample preparation
- Drying of thermally labile APIs prior to lyophilization or crystallization trials
- Preparative-scale fractional distillation using optional short-path attachments
- Teaching laboratory demonstrations of phase equilibria, Raoult’s law, and vacuum thermodynamics
FAQ
Is the RE-3000B compatible with vacuum pumps rated for corrosive vapors?
Yes—when used with chemically resistant diaphragm or dry scroll vacuum pumps and appropriate cold traps, the system handles aggressive solvents including HCl-, HF-, or THF-laden vapors, provided all wetted surfaces (condenser, seals, and receiving flasks) are inert-grade.
Can the water bath temperature be controlled independently from the rotation speed?
Yes—temperature and rotation are fully decoupled functions; each is adjusted and monitored separately via dedicated controls and displays.
What maintenance is required for long-term reliability?
Routine inspection of PTFE bath coating integrity, periodic greasing of lift mechanism gears, and annual verification of temperature sensor calibration using NIST-traceable reference thermometers are recommended.
Does the unit include a vacuum regulator or pressure sensor?
No—the RE-3000B does not incorporate built-in vacuum regulation or real-time pressure feedback; external vacuum controllers must be added for automated pressure ramping or endpoint detection.
