YUHUA YRE-2012 Automatic Lifting Rotary Evaporator

Overview

The YUHUA YRE-2012 Automatic Lifting Rotary Evaporator is a precision-engineered benchtop purification system designed for efficient solvent removal, concentration, and gentle distillation under reduced pressure. Based on the fundamental principle of rotary evaporation—where simultaneous rotation, controlled heating, and vacuum-induced boiling point depression accelerate solvent volatilization—the YRE-2012 integrates mechanical stability with operational repeatability for routine and method-critical applications in regulated environments. Its vertical triple-coil serpentine condenser maximizes thermal exchange efficiency across the 0.14 m² cooling surface, while the PTFE–fluororubber dual-seal interface ensures long-term vacuum integrity at pressures down to ≤ 399.9 Pa (≤ 3 mmHg). The system operates within a validated temperature range of ambient to 99 °C with ±1 °C thermal accuracy, enabling precise control over heat-sensitive compounds without thermal degradation.

Key Features

• Motorized vertical lift mechanism with 100 mm automated stroke and 115 mm manual override—enabling safe, repeatable flask positioning and rapid setup changes.
• Synchronous motor-driven rotation (5–300 rpm) with digital speed display and analog knob adjustment for fine-tuned control and minimal vibration transmission.
• Integrated safety architecture: thermal fuse protection, motor overload circuitry, and mechanical upper/lower limit switches on the lifting column.
• Vertical triple-serpentine condenser constructed from high-conductivity borosilicate glass, optimized for high-efficiency condensation of low-boiling solvents including acetone, ethanol, ethyl acetate, and dichloromethane.
• T-type base frame (490 × 335 mm) provides enhanced lateral stability during high-speed rotation and accommodates auxiliary equipment such as circulating chillers or vacuum controllers.
• Standardized ground-glass joints: 29/38 taper for the 1 L pear-shaped evaporation flask; 35/20 spherical joint for the 1 L receiving flask—ensuring interchangeability with ISO-compliant labware.

Sample Compatibility & Compliance

The YRE-2012 supports standard 1 L evaporation flasks and receivers compatible with common organic, aqueous, and semi-polar solvent systems. Its vacuum-tight construction—validated to ≤ 399.9 Pa—meets baseline requirements for ASTM E2655 (Standard Guide for Standardizing Analytical Chemistry Procedures) and supports GLP-compliant documentation when integrated with traceable vacuum gauges and temperature loggers. While not certified to IEC 61010-1 or CE for standalone regulatory submission, its electrical design (200 VA, 2 A, AC 220 V/50 Hz) conforms to general-purpose laboratory equipment safety expectations in North America and EU markets when used with appropriately rated external vacuum pumps and cooling units. All wetted surfaces are chemically inert borosilicate glass or fluoropolymer-sealed, minimizing leaching risk per USP .

Software & Data Management

The YRE-2012 operates as a stand-alone analog-digital hybrid instrument with no embedded microprocessor or network interface. Rotation speed and bath temperature are monitored via front-panel LED displays and adjusted manually—ensuring deterministic, interference-free operation in electromagnetically sensitive labs. For full auditability, users may pair the unit with external data loggers (e.g., Omega OM-DAQPRO-5300) connected to PT100 probes and tachometer sensors. When deployed in GMP environments, SOPs should define calibration intervals for the digital temperature controller (traceable to NIST-certified references) and vacuum gauge (calibrated per ISO 2533), with records maintained per FDA 21 CFR Part 11 requirements if electronic data capture is employed.

Applications

• Solvent recovery and sample concentration in pharmaceutical QC laboratories (e.g., residual solvent analysis per ICH Q3C).
• Extraction and fractionation workflows in natural product chemistry and food safety testing (e.g., pesticide residue cleanup prior to GC-MS).
• Polymer solution degassing and monomer removal in materials R&D.
• Distillation of thermally labile compounds in agrochemical formulation development.
• Environmental sample preparation—including PAH and PCB enrichment from aqueous extracts—per EPA Method 3510C.
• Teaching laboratories requiring robust, serviceable instrumentation for undergraduate organic chemistry instruction.

FAQ

What vacuum level is required to achieve optimal performance with the YRE-2012?

The system is engineered for stable operation at ≤ 399.9 Pa (≤ 3 mmHg); performance validation requires a two-stage diaphragm or circulating water vacuum pump capable of reaching this threshold under load.
Can the YRE-2012 be integrated with an external chiller?

Yes—its condenser inlet/outlet ports accept standard 10 mm OD tubing; compatibility is confirmed with chillers delivering ≥ 12 L/min flow at ≤ 5 °C (e.g., Huber Unistat or similar).
Is the heating bath calibrated to ISO/IEC 17025 standards?

The unit does not include factory-issued ISO/IEC 17025 calibration; however, third-party calibration services can verify bath uniformity and setpoint accuracy per ASTM E74 or ISO 17025-accredited protocols.
What maintenance intervals are recommended for long-term reliability?

PTFE–fluororubber seals should be inspected quarterly; rotating shaft grease reapplied annually; and vacuum hose integrity verified before each high-vacuum run.
Does the YRE-2012 support remote start/stop or programmable ramping?

No—this is a manually operated, non-programmable system. Automation requires external relay control interfaced via dry-contact terminals (not supplied).