Zuofei HY-100 Multi-Tube Vortex Mixer for Clinical Sample Homogenization

Overview

The Zuofei HY-100 Multi-Tube Vortex Mixer is an engineered solution for high-throughput, reproducible homogenization of clinical and biological samples—specifically optimized for nucleic acid extraction workflows, including SARS-CoV-2 nasopharyngeal and oropharyngeal swab sample preparation. It operates on the principle of orbital vortex motion generated by a brushless DC motor, inducing controlled, three-dimensional turbulent mixing within sealed tubes without splashing or aerosol generation. Unlike orbital shakers or reciprocating mixers, this device delivers consistent radial acceleration across all tube positions, ensuring uniform suspension of viscous or particulate-laden matrices such as viral transport media (VTM), lysis buffers, and magnetic bead suspensions. Its fixed 4 mm oscillation amplitude and programmable speed range (500–2500 rpm) enable precise tuning for both gentle cell resuspension and vigorous lysis enhancement—critical for maximizing RNA recovery yield and minimizing pre-analytical variability in molecular diagnostics.

Key Features

• High-capacity processing: Simultaneous vortexing of up to 50 tubes (e.g., 10–16 mm diameter) or four standard microplates (96-well or 384-well format), supporting batched diagnostic sample preparation under ISO 15189 and CLIA-aligned laboratory workflows.
• Brushless DC motor drive: Ensures >20,000-hour operational lifespan, zero carbon brush wear, silent operation, and stable torque delivery across the full speed range—eliminating maintenance downtime and calibration drift associated with brushed motors.
• Dual-parameter LCD interface: Real-time display of elapsed time and set speed; independent timer resolution down to 1 minute, extendable to 99 hours 59 minutes for unattended overnight protocols.
• Modular tube holder system: Six interchangeable sponge-based adapters (ZTV-B01 through ZTV-B06) accommodate common clinical tube diameters (10 mm to 29 mm); optional ZTV-B00 universal tray pad enables custom fixture integration for non-standard containers.
• Programmable endpoint signaling: Audible alarm triggers automatically upon timer completion—supporting GLP-compliant documentation where operator acknowledgment is required prior to downstream steps.
• Universal power compatibility: Auto-ranging 100–230 V AC input with integrated overcurrent and thermal protection, certified for use in multi-site laboratories across North America, EU, and APAC regions.

Sample Compatibility & Compliance

The HY-100 supports direct mixing of primary collection tubes used in FDA-authorized SARS-CoV-2 testing—including BD Universal Viral Transport Medium (UTM®), Copan ESwab™, and Roche cobas® PCR Media tubes—as well as 1.5 mL and 2.0 mL microcentrifuge tubes, PCR strip tubes, and deep-well plates. All contact surfaces are constructed from chemical-resistant ABS and stainless-steel-reinforced polymer, compatible with 70% ethanol, 0.5% sodium hypochlorite, and isopropanol decontamination per CDC and WHO biosafety guidelines. While not classified as an IVD device under IVDR 2017/746, its performance parameters align with ASTM D4067-22 (Standard Practice for Vortex Mixing of Liquid Samples) and support validation requirements under ISO/IEC 17025:2017 Clause 7.2.2 for equipment suitability assessment.

Software & Data Management

The HY-100 operates as a standalone hardware platform with no embedded firmware update capability or network connectivity. All operational parameters are set locally via tactile keypad and retained in non-volatile memory. For laboratories implementing 21 CFR Part 11 compliance, manual logbook entries—including date/time stamp, operator ID, protocol ID, speed/time settings, and module configuration—are recommended for audit trail integrity. The device does not generate electronic records; however, its deterministic behavior (±10 rpm speed accuracy, ±0.5 min timer tolerance) permits inclusion in instrument qualification protocols (IQ/OQ/PQ) as part of broader LIMS-integrated sample prep workflows.

Applications

• Pre-PCR sample homogenization: Uniform dispersion of swab eluates in VTM prior to RNA extraction, reducing pipetting error and improving inter-run consistency.
• Magnetic bead-based nucleic acid isolation: Efficient resuspension of silica-coated or carboxylated beads in binding/wash/elution buffers to maximize binding capacity and minimize carryover.
• Cell culture reagent preparation: Rapid dissolution of lyophilized enzymes, cytokines, or growth factors in serum-free media without foaming.
• Quality control of diagnostic reagents: Verification of homogeneity in multiplex assay master mixes containing dyes, probes, and internal controls.
• Environmental microbiology: Mixing of filter-concentrated water samples with enrichment broths prior to culturing or qPCR analysis.

FAQ

Is the HY-100 suitable for mixing hazardous or biocontainment samples?
Yes—when used inside a certified Class II biosafety cabinet with appropriate PPE, its sealed motor housing and splash-resistant design meet BSL-2 handling requirements for clinical specimens.
Can the HY-100 be validated for GMP environments?
It can be qualified per user-defined PQ protocols; however, it lacks built-in electronic audit trails or password-protected parameter locking—features typically required for full GMP compliance.
What is the expected service life of the brushless motor?
Rated for ≥20,000 hours of continuous operation at nominal load, equivalent to >10 years of routine 8-hr/day lab use.
Are third-party tube holders compatible with the HY-100 platform?
Only Zuofei-certified ZTV-series modules guarantee mechanical alignment and vibration damping; non-OEM adapters may induce resonance or uneven mixing.
Does the device comply with electromagnetic compatibility (EMC) standards?
Yes—it meets EN 61326-1:2013 for laboratory electrical equipment, including radiated and conducted emissions limits per CISPR 11.