Heidolph Hei-VAP Expert Control Rotary Evaporator

Overview

The Heidolph Hei-VAP Expert Control is a high-precision, fully integrated rotary evaporator engineered for reproducible solvent removal, concentration, and purification in research laboratories, QC environments, and pilot-scale development workflows. It operates on the fundamental principle of reduced-pressure evaporation: by lowering the system pressure and applying controlled heating, volatile solvents boil at significantly lower temperatures—minimizing thermal degradation of heat-sensitive compounds. Unlike conventional rotary evaporators relying on manual vacuum regulation or fixed-speed operation, the Hei-VAP Expert Control implements closed-loop process control across four critical parameters—rotational speed, bath temperature, condenser cooling temperature, and system vacuum—enabling automated, protocol-driven distillation sequences. Its architecture conforms to ISO/IEC 17025-aligned laboratory instrumentation standards and supports GLP-compliant documentation through audit-trail-capable software logging (when paired with Hei-CHILL and compatible vacuum controllers).

Key Features

• 5″ Full-Color Graphical Touchscreen Interface: Centralized control panel displays real-time setpoints and actual values for all operational parameters—including vacuum level (mbar), bath temperature (°C), rotation speed (rpm), and condenser coolant temperature—with intuitive icon-based navigation and dual-language support (English/German).
• Dynamic AUTOaccurate (DAA) Distillation Mode: An intelligent, sensor-driven algorithm that dynamically adjusts vacuum during heating ramp-up to detect boiling points of single or multi-component solvent mixtures based on vapor temperature gradients—eliminating manual trial-and-error optimization.
• Motorized or Manual Vertical Lift: Programmable lift mechanism automatically raises the evaporation flask from the heating bath upon cycle completion or emergency stop, preventing thermal carryover and enabling safe post-process handling.
• Integrated Vacuum & Cooling Control: Built-in vacuum controller synchronizes with Hei-CHILL recirculating chillers (via RS485 or analog I/O), allowing coordinated adjustment of condenser temperature and system pressure to maximize condensation efficiency and minimize bumping.
• Programmable Ramp & Hold Protocols: Users define custom distillation profiles—including pre-evaporation degassing, multi-stage vacuum ramps, temperature holds, and endpoint triggers—stored as reusable methods in onboard memory or exported via USB/MicroSD.
• Enhanced Safety Architecture: Features include PT1000 bath temperature monitoring with automatic cut-off at +5 °C deviation, dry-run protection, IP67-rated corrosion-resistant cable interfaces, tempered glassware with laminated safety film, and LED ring indicators for operational status and residual heat warning (>50 °C).

Sample Compatibility & Compliance

The Hei-VAP Expert Control accommodates standard ISO-K 29/32 and ISO-K 45/50 ground-glass joints and supports evaporation flasks up to 5 L volume. Its modular design permits seamless integration with Heidolph’s full range of accessories—including large-area XL condensers (2,200 cm²), vertical/horizontal cold fingers, and inert gas purging kits—for applications involving low-boiling solvents (e.g., diethyl ether, pentane), high-viscosity extracts (e.g., plant oils, polymer solutions), or air/moisture-sensitive materials. The system meets CE marking requirements under the EU Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU. All electronic modules comply with EN 61326-1 (EMC) and EN 61010-1 (safety). Optional IQ/OQ documentation packages are available to support FDA 21 CFR Part 11 readiness and GMP validation in regulated pharmaceutical and biotech settings.

Software & Data Management

While the Hei-VAP Expert Control operates autonomously via its embedded firmware, it supports firmware updates and method synchronization through USB 2.0 and MicroSD card interfaces. Settings—including DAA calibration offsets, solvent library entries, and user-defined programs—can be exported as encrypted .HEI files and imported across identical units within a lab network. When connected to Heidolph’s Hei-CHILL Pro chiller and Vacuubrand RC 6/RC 10 vacuum systems (via optional digital interface modules), full parameter logging—including timestamped vacuum curves, temperature profiles, and rotational stability metrics—is achievable using HeiSoft Suite v3.x. This enables traceable data export in CSV or PDF format for internal review, regulatory submission, or long-term process trending analysis.

Applications

• Routine solvent recovery in synthetic organic chemistry labs (e.g., removal of THF, DCM, ethyl acetate post-reaction workup)
• Concentration of natural product extracts under gentle conditions to preserve terpenes, alkaloids, or flavonoids
• Preparative purification of APIs and intermediates under cGMP-aligned workflows
• Lyophilization feedstock preparation requiring precise residual solvent control
• Environmental sample processing (e.g., EPA Method 3510C aqueous extract concentration)
• Food & beverage R&D for aroma compound isolation and flavor concentrate production

FAQ

Does the Hei-VAP Expert Control require external vacuum or cooling units to operate?
No—it includes an integrated vacuum controller and supports direct connection to Hei-CHILL chillers, but standalone operation with third-party vacuum pumps and circulators is possible via analog or digital I/O interfaces.
Can DAA mode identify boiling points for azeotropic mixtures?
DAA detects inflection points in vapor temperature rise rates; while effective for many binary and ternary mixtures, azeotropes may require manual confirmation due to overlapping volatility profiles.
Is method transfer between instruments supported?
Yes—programs, solvent libraries, and calibration data can be copied via USB or MicroSD and loaded onto other Hei-VAP Expert Control units without reconfiguration.
What maintenance intervals are recommended for long-term reliability?
Vacuum pump oil should be changed every 3–6 months depending on usage; condenser gaskets and PTFE seals are inspected annually; touchscreen calibration is performed during annual service visits per Heidolph’s Preventive Maintenance Protocol.
Does the system support remote monitoring or Ethernet connectivity?
Not natively—remote access requires integration with HeiSoft Suite via USB-to-PC connection; Ethernet or Wi-Fi modules are not included but may be added via third-party industrial gateways compliant with Modbus RTU/TCP.