HengAo HMV-50A High-Capacity Vortex Mixer

Overview

The HengAo HMV-50A is a high-throughput, microprocessor-controlled orbital vortex mixer engineered for reproducible, parallel sample homogenization in regulated laboratory environments. Unlike conventional single-tube vortexers, the HMV-50A employs horizontal circular orbital motion—generated by an eccentric drive mechanism—to induce uniform turbulent mixing across all 50 tube positions simultaneously. This motion profile ensures consistent shear input and minimal sample stratification, critical for applications requiring high inter-sample comparability, such as residue analysis and pharmaceutical QC workflows. The device operates on the principle of controlled mechanical agitation rather than fluidic or magnetic coupling, delivering robust performance across viscous, particulate-laden, or low-volume aqueous/organic matrices without reliance on consumable accessories.

Key Features

• 50-position simultaneous mixing capacity with precisely balanced platform dynamics to maintain ±2% speed consistency across all wells under load
• Microprocessor-based speed regulation enabling stepless adjustment from 200 to 2400 rpm with <±10 rpm repeatability over repeated cycles
• Dual-mode operation: programmable pulse mode (on/off intervals configurable in 1-second increments) and continuous mode for extended incubation-compatible mixing
• LED digital display showing real-time rotational speed and countdown timer (0–99 minutes), with non-volatile memory retaining last-used settings after power cycling
• Die-cast aluminum alloy housing providing structural rigidity, thermal stability, and corrosion resistance in humid or reagent-exposed lab environments
• 5 mm orbital amplitude optimized for efficient suspension of precipitates and emulsification of immiscible phases without excessive foaming or tube ejection
• Interchangeable accessory support: compatible with standardized 0.5 mL, 1.5 mL, 2.0 mL, and 15 mL tube racks, as well as flat-bottom microplate adapters (not included)

Sample Compatibility & Compliance

The HMV-50A accommodates standard conical-bottom and round-bottom centrifuge tubes, PCR strips, and shallow-well microplates—enabling direct integration into ELISA, extraction, and derivatization workflows. Its mechanical design conforms to IEC 61010-1 safety standards for laboratory electrical equipment, including protection against overcurrent, thermal runaway, and mechanical overload. While not certified for cleanroom use (ISO 14644), the unit’s sealed motor housing and non-porous surface facilitate routine disinfection with 70% ethanol or isopropanol—supporting GLP-aligned cleaning validation protocols. It is routinely deployed in laboratories performing analyses compliant with AOAC Official Methods, ISO/IEC 17025-accredited residue testing, and USP analytical instrument qualification frameworks.

Software & Data Management

The HMV-50A operates as a standalone hardware platform with no embedded software stack or network interface. All operational parameters are configured locally via tactile membrane keypad inputs, ensuring deterministic response and eliminating cybersecurity vulnerabilities associated with connected instruments. The LED interface logs no audit trail; however, users may integrate external timing and documentation systems (e.g., LIMS or electronic lab notebooks) to record run conditions per sample batch. For GxP-regulated environments, the device supports IQ/OQ protocol execution per manufacturer-supplied test templates, including speed calibration verification using NIST-traceable tachometers and timer accuracy assessment at multiple setpoints.

Applications

• Multi-sample preparation for pesticide residue analysis (e.g., QuEChERS extracts) prior to GC-MS or LC-MS/MS injection
• Homogenization of tissue homogenates and biological fluids in veterinary drug residue screening programs
• Reconstitution and dispersion of lyophilized standards and reference materials in pharmaceutical assay development
• Equilibration of internal standard spiking solutions across large sample sets in food safety QA/QC labs
• Pre-analytical mixing in clinical toxicology workflows involving whole blood, serum, and urine matrices
• Supporting ISO 17025 method validation studies where inter-operator and inter-batch mixing variability must be minimized

FAQ

Is the HMV-50A suitable for mixing viscous samples such as glycerol-water mixtures or cell lysates?
Yes—the 5 mm orbital amplitude and torque-stable motor deliver sufficient kinetic energy to suspend particulates and break weak agglomerates in solutions up to ~150 mPa·s viscosity at 2400 rpm.
Can the timer be disabled to enable indefinite continuous operation?
No—the timer is mandatory in both modes; however, setting it to “99” provides maximum runtime before auto-shutdown, and the unit may be manually restarted immediately.
Does the device meet FDA 21 CFR Part 11 requirements for electronic records?
No—it lacks user authentication, electronic signatures, or audit trail functionality; it is intended for use in non-critical pre-analytical steps where manual logbook entry satisfies regulatory expectations.
What maintenance is required to ensure long-term speed accuracy?
Annual verification using an optical tachometer is recommended; no routine lubrication or calibration is needed due to brushless DC motor design and hardened steel drive shaft bearings.
Are replacement tube racks available with custom hole patterns?
Yes—HengAo offers OEM-compatible rack designs for non-standard tube geometries (e.g., 0.2 mL PCR tubes or 50 mL conical tubes) upon request with minimum order quantities.