HePu R-1020 Pilot-Scale Rotary Evaporator

Overview

The HePu R-1020 Pilot-Scale Rotary Evaporator is an engineered vacuum distillation system designed for laboratory-to-pilot-scale solvent removal, concentration, crystallization, and recovery in pharmaceutical development, fine chemical synthesis, natural product isolation, and bioprocess R&D. Operating on the principle of thin-film evaporation under controlled vacuum and uniform thermal input, the R-1020 enables reproducible, scalable processing of heat-sensitive compounds—including peptides, enzymes, labile APIs, and plant extracts—without thermal degradation. Its 20 L rotating flask (Φ125 mm standard taper joint) establishes a robust platform between benchtop and production-scale workflows, supporting process transfer validation and DoE-based optimization per ICH Q5, Q7, and Q8 guidelines.

Key Features

• High-vacuum capability down to 399.9 Pa (≤3 mmHg), achieved via dual-seal architecture combining PTFE stator rings and fluororubber rotor gaskets—certified for long-term integrity under continuous operation.
• Digital variable-frequency drive with real-time rpm display (10–130 rpm range), ensuring stable rotational control across viscosity gradients and preventing splashing or film rupture.
• Stainless steel water bath with PID digital temperature controller (ambient to 99 °C, ±1 °C accuracy at setpoint), integrated with overheat protection and external sensor port for independent calibration traceability.
• Vertical triple-loop condenser assembly fabricated from borosilicate 3.3 glass (ISO 3585 compliant), delivering high surface-area-to-volume ratio and minimal vapor path resistance for efficient condensate recovery of low-boiling solvents (e.g., dichloromethane, ethyl acetate, acetone).
• Motorized lift mechanism (0–190 mm stroke) with manual override, enabling precise flask immersion depth adjustment and safe, repeatable separation of distillate from residue without breaking vacuum.
• PTFE-coated discharge valve and all-glass/PTFE fluid path ensure chemical inertness, eliminating metal ion leaching and cross-contamination—critical for GMP-aligned QC labs and USP <797> compounding environments.

Sample Compatibility & Compliance

The R-1020 accommodates aqueous, organic, and mixed-solvent systems with viscosities up to 500 mPa·s (measured at 25 °C). Its all-borosilicate glass construction complies with ISO 3585 for thermal shock resistance and hydrolytic stability; PTFE components meet FDA 21 CFR §177.1550 for repeated food/pharma contact. The system supports GLP documentation workflows through optional audit-trail-enabled controllers (R-1020EX variant), and its vacuum-tight design facilitates integration into closed-loop solvent recovery systems compliant with EPA 40 CFR Part 63 Subpart GGGGG (MACT standards for pharmaceutical manufacturing).

Software & Data Management

While the base R-1020 operates via standalone digital panel controls, the R-1020EX configuration offers RS-485 Modbus RTU interface for integration into LabVantage, DeltaV, or custom SCADA platforms. Temperature and rotation data logging (1 Hz sampling) is supported via external USB data loggers compatible with ASTM E2500-22 Annex A3 for equipment qualification records. All firmware versions maintain revision-controlled binaries traceable to internal change control SOPs, satisfying FDA 21 CFR Part 11 requirements when paired with validated electronic signature modules.

Applications

• Concentration of thermolabile fermentation broths prior to HPLC analysis or lyophilization.
• Removal of reaction solvents (e.g., THF, DMF, toluene) following Grignard or Suzuki couplings—enabling direct mass balance calculation per ICH Q2(R2).
• Recovery and reuse of chiral eluents in preparative SFC, reducing operational costs and environmental impact.
• Batch-wise dehydration of hygroscopic intermediates under nitrogen-purged vacuum, minimizing oxidation during API purification.
• Scale-up studies correlating 2 L → 20 L → 100 L evaporation kinetics for tech transfer dossiers submitted to EMA or PMDA.

FAQ

What vacuum level is required for low-boiling-point solvent removal (e.g., diethyl ether)?
For solvents boiling below 40 °C at atmospheric pressure, operation below 133 Pa (1 Torr) is recommended; the R-1020 achieves ≤399.9 Pa, making it suitable for ethanol, acetone, and ethyl acetate—but a secondary vacuum pump (e.g., oil-free diaphragm) may be needed for ether or pentane.
Can the R-1020 be used under inert atmosphere?
Yes—via optional gas inlet adapter (standard Schlenk port on vapor duct), enabling nitrogen or argon sparging during distillation to prevent oxidation of sensitive compounds.
Is the water bath temperature calibrated to NIST-traceable standards?
The factory calibration certificate includes reference to PT100 probe verification against ISO/IEC 17025-accredited standards; end users may perform in-house recalibration using Class A glass thermometers per ASTM E77.
What maintenance intervals are recommended for the PTFE/fluororubber seal?
Under continuous 8-hr/day operation, inspect seals every 500 operating hours; replace if axial play exceeds 0.3 mm or vacuum decay exceeds 10 Pa/min at 400 Pa target.
Does the system support 21 CFR Part 11 compliance out of the box?
No—the base model lacks electronic audit trails and role-based access control; however, the R-1020EX variant with optional software package provides full Part 11 functionality including electronic signatures, secure user authentication, and immutable data archives.