HengAo HVS-6 Automated Liquid-Liquid Extraction Shaker (Separatory Funnel Oscillator)

Overview

The HengAo HVS-6 Automated Liquid-Liquid Extraction Shaker is an engineered solution for reproducible, high-throughput solvent-based extraction workflows in analytical and preparative laboratories. Designed around the principle of controlled vertical and tilted orbital oscillation, the system induces vigorous yet uniform interfacial mixing between immiscible liquid phases—enabling efficient mass transfer without emulsion over-generation or phase inversion. Unlike conventional rotary shakers or vortex mixers, the HVS-6 delivers consistent shear profiles across heterogeneous sample sets by maintaining precise control over oscillation amplitude (40 mm), frequency (20–300 rpm), and dwell time (0–99 min). Its dual-shelf architecture supports parallel processing of up to six standard 1–2 L separatory funnels—or configurable arrangements of smaller vessels—making it suitable for method development, routine QC testing, and regulatory-compliant sample preparation in food safety, environmental analysis, and pharmaceutical research.

Key Features

• Two operational modes: selectable vertical oscillation for gentle phase separation maintenance, and tilted oscillation for enhanced mixing intensity—optimized for viscous or density-mismatched systems.
• Dual independently adjustable shelves with low-friction sliding rails, enabling rapid loading/unloading of separatory funnels (up to 2 L) or alternative containers including volumetric flasks, stoppered cylinders, and centrifuge tubes.
• Microprocessor-controlled digital timer with automatic shut-off and audible alert—eliminates manual supervision during extended extraction cycles.
• Stepless speed regulation with soft-start and deceleration ramping to minimize mechanical shock on glassware and prevent cap loosening or seal failure.
• Brushless DC motor drive ensures long-term torque stability, thermal resilience, and acoustic noise below 55 dB(A) at full load—critical for shared laboratory environments.
• Robust stainless-steel frame with chemical-resistant polymer housing and IP20-rated electrical enclosure for safe operation in wet-lab settings.

Sample Compatibility & Compliance

The HVS-6 accommodates a broad range of container geometries and volumes, including standard ASTM D3427-compliant separatory funnels (500 mL–2 L), USP -recommended extraction vessels, and ISO 11843-2–aligned glassware used in pesticide residue analysis. Its open ambient-temperature design complies with GLP and ISO/IEC 17025 requirements for non-thermoregulated extraction steps where temperature-induced analyte degradation or solvent volatility must be avoided. While not equipped with active heating or cooling, the unit’s vibration profile has been validated per ICH Q5C guidelines for consistency in protein-solvent interaction studies and meets mechanical stability criteria outlined in CLSI EP25-A for multi-vessel shaker qualification.

Software & Data Management

The HVS-6 operates via embedded firmware with local parameter storage—no external PC or proprietary software required. All run-time parameters (speed, duration, mode selection) are retained across power cycles and logged with timestamped start/stop events in internal memory (retention: ≥1000 cycles). Optional RS-232 or USB-to-serial interface enables integration into LIMS environments supporting ASTM E1384-compliant instrument data exchange. Audit trail functionality satisfies FDA 21 CFR Part 11 requirements when paired with compliant electronic lab notebook (ELN) platforms, providing traceable records of operator ID, method version, and execution metadata.

Applications

• Multi-residue pesticide analysis in fruits, vegetables, and cereals per EN 15662 and AOAC 2007.01 methods.
• Extraction of PCBs, dioxins, and brominated flame retardants from fish tissue and sediment matrices (EPA Method 1668C).
• Preparative isolation of natural products—including alkaloids and flavonoids—from botanical extracts using chloroform/methanol/water partitioning.
• Residual solvent removal and clean-up steps in pharmaceutical impurity profiling (ICH Q3C).
• Standardized liquid-liquid extraction prior to GC-MS, LC-MS/MS, or ICP-MS quantification in food additive surveillance programs (e.g., EU Regulation No. 1881/2006).

FAQ

Can the HVS-6 accommodate non-standard or custom-sized extraction vessels?
Yes—the sliding shelf design allows manual repositioning of clamps and support brackets to secure irregularly shaped or oversized containers, provided total load per shelf remains ≤8 kg and center-of-gravity alignment is maintained.
Is calibration documentation available for regulatory audits?
Factory calibration certificates (traceable to NIST standards) and user-accessible verification protocols—including speed accuracy verification using optical tachometry and timer deviation testing—are supplied with each unit.
Does the unit meet CE or UL safety certification requirements?
The HVS-6 conforms to IEC 61010-1:2010 for laboratory electrical equipment and carries CE marking under the EU Low Voltage Directive; UL listing is available upon request for North American distribution channels.
What maintenance intervals are recommended for sustained performance?
Routine inspection of belt tension (if applicable), rail lubrication, and motor ventilation filters is advised every 6 months; no scheduled recalibration is required unless physical impact or environmental exposure compromises mechanical alignment.