Hanuo HZD300S Orbital Shaker

Overview

The Hanuo HZD300S Orbital Shaker is a precision-engineered laboratory shaker designed for consistent, low-shear horizontal orbital motion. It operates on the principle of circular oscillation—where the platform rotates around a fixed central axis with a defined orbit diameter of 22 mm—generating uniform mixing forces ideal for antigen-antibody agglutination assays and gentle suspension of biological samples. Unlike reciprocating or vortex shakers, this instrument delivers laminar, non-turbulent motion critical for serological tests such as Rapid Plasma Reagin (RPR), Toluidine Red Unheated Serum Test (TRUST), and Venereal Disease Research Laboratory (VDRL) assays—procedures widely standardized under CLSI MM17-A and WHO guidelines for syphilis screening. Its brushless DC motor ensures stable rotational output across the full 20–230 rpm range, minimizing mechanical drift and thermal load during extended operation.

Key Features

• Brushless DC motor drive system engineered for long-term reliability, low acoustic emission (<45 dB(A) at 1 m), and minimal electromagnetic interference—ensuring stable performance even under fluctuating mains voltage conditions.
• Digital LED display showing real-time speed (rpm) and remaining timer duration (min/sec), with intuitive membrane keypad interface for parameter entry and confirmation.
• Precision-machined aluminum alloy platform (280 × 210 mm) with non-slip silicone coating to secure microplates, Petri dishes, test tubes, and glass slides without clamps or adhesive tape.
• Fixed transparent polycarbonate cover included as standard—meets IEC 61010-1 safety requirements for operator protection against splashes and accidental contact during operation.
• Timer function supports both countdown mode (1–999 min) and continuous operation; programmable start/stop logic enables unattended batch processing in clinical laboratory workflows.

Sample Compatibility & Compliance

The HZD300S accommodates standard 96-well microtiter plates (flat-bottom and U/V-bottom), 35–150 mm Petri dishes, 12–50 mL conical tubes, and glass slide racks. Its 22 mm orbit diameter provides optimal lateral displacement for maximizing surface interaction in immunoassay wells while avoiding foam formation or cell shearing in sensitive suspensions. The instrument complies with IEC 61010-1:2010 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and meets essential requirements of the EU Low Voltage Directive 2014/35/EU. While not temperature-controlled, its ambient-operating design aligns with CLIA-waived test protocols requiring room-temperature incubation steps prior to reading.

Software & Data Management

The HZD300S operates as a standalone analog-digital hybrid device with no embedded firmware or network connectivity. All operational parameters are set manually via front-panel controls and retained only during active power supply—no data logging, USB export, or audit trail functionality is provided. This architecture intentionally supports GLP-compliant environments where simplicity, traceability, and absence of electronic records reduce validation burden. For laboratories subject to FDA 21 CFR Part 11, the unit may be integrated into broader SOPs defining manual parameter recording in bound lab notebooks or LIMS-integrated workflow logs.

Applications

• Serological screening: RPR, TRUST, and VDRL slide/plate agglutination assays in public health labs and STD clinics.
• Cell culture maintenance: Gentle resuspension of adherent cells post-trypsinization and pre-plating.
• ELISA plate preparation: Uniform coating buffer distribution and washing step homogenization prior to substrate addition.
• Molecular diagnostics: Hybridization support for DNA probe-based assays requiring controlled agitation without denaturation.
• Quality control: Mixing of calibration standards and control sera in ISO 15197-compliant point-of-care testing verification.

FAQ

Is the HZD300S suitable for use in ISO 17025-accredited laboratories?
Yes—its mechanical stability, documented speed/time accuracy (±2 rpm, ±1 s/min), and CE-marked safety compliance support inclusion in accredited scope documentation when operated per manufacturer-specified conditions.
Can the shaker accommodate deep-well plates or PCR plates?
It supports standard-height 96-well plates (≤20 mm height); deep-well plates (>30 mm) require optional raised platform adapters not supplied with base configuration.
Does the unit include calibration certification?
No factory calibration certificate is included; however, speed and timer verification can be performed using NIST-traceable tachometers and stopwatch standards per ISO/IEC 17025 clause 6.5.
What maintenance is required for long-term operation?
Annual inspection of motor coupling integrity and platform leveling is recommended; no lubrication or consumable replacement is specified by the manufacturer.
Is the transparent cover autoclavable?
No—the polycarbonate cover is rated for wipe-down disinfection only (e.g., 70% ethanol or 0.5% sodium hypochlorite); autoclaving will cause irreversible deformation and optical haze.