YiHeng WSZ Series Orbital Shaker with Heating Function

Overview

The YiHeng WSZ Series Orbital Shaker with Integrated Heating Function is an engineered solution for laboratories requiring precise, reproducible orbital motion combined with uniform thermal control across a broad temperature range. Unlike conventional shakers limited to ambient or low-temperature operation, the WSZ series employs a Peltier-assisted resistive heating system coupled with PID-controlled thermal regulation to maintain stable setpoints from RT+5°C up to 100°C—enabling applications such as gel staining/destaining, combinatorial synthesis, enzymatic incubation, and cell culture pre-conditioning under controlled agitation. Its core mechanism relies on eccentric drive transmission to generate consistent circular motion (orbital oscillation) with minimal vibration transfer to adjacent instrumentation. Designed for ISO 17025-compliant environments, the unit meets mechanical stability requirements per ASTM E1249 for laboratory shaker performance verification.

Key Features

• Microprocessor-based dual-control system managing independent real-time regulation of temperature, speed, and time—with non-volatile memory retention for parameter backup during power interruption.
• Large backlit LCD display showing simultaneous readouts of current temperature (±0.3°C accuracy), actual RPM (±2 rpm resolution), elapsed/remaining time, and active program segment.
• Brushless DC motor delivering high starting torque (adjustable via front-panel interface), wide speed range (40–250 rpm standard; optional 300 rpm configuration), and zero-maintenance operation over >20,000 hours MTBF.
• Intelligent motion safety logic: automatic shutdown if oscillation amplitude exceeds preset threshold (e.g., due to unbalanced load or mechanical obstruction), followed by smooth ramp-up/down acceleration profiles.
• Modular platform design supporting rapid interchange of universal spring clamps, flask holders (for 50–1000 mL vessels), microplate adapters (96-/384-well), and custom fixtures—all fabricated from anodized aluminum for corrosion resistance and thermal uniformity.
• Optional multi-segment programmability allows sequential execution of up to 10 user-defined stages, each specifying unique temperature setpoint, rotation speed, duration, and ramp rate—supporting GLP-aligned experimental protocols.

Sample Compatibility & Compliance

The WSZ shaker accommodates diverse sample formats including glass or plastic Erlenmeyer flasks (50–2000 mL), centrifuge tubes (15–50 mL), PCR tubes, microtiter plates, and Petri dishes. Its heated platform ensures minimal thermal gradient (< ±0.8°C across 250 × 250 mm surface area at 80°C), validated per ISO 8573-1 Annex B methodology. The device conforms to IEC 61010-1:2010 safety standards for laboratory electrical equipment and carries CE marking under the Low Voltage Directive. It supports audit-ready documentation workflows required under FDA 21 CFR Part 11 when paired with YiHeng’s optional PC-based data logging software (v3.2+), which records timestamped temperature/RPM logs with electronic signature capability.

Software & Data Management

While standalone operation requires no external software, optional USB-connected PC interface enables remote monitoring, real-time graphing (temperature vs. time, RPM vs. time), and export of CSV-formatted datasets compliant with LIMS integration standards. Firmware updates are delivered via secure HTTPS portal and include cryptographic signature validation. All logged data includes embedded metadata: instrument ID, operator login (if network-authenticated), environmental conditions (ambient temp/humidity if sensor-equipped), and calibration status flags—ensuring traceability in GMP/GLP-regulated facilities.

Applications

• Gel electrophoresis processing: uniform dye penetration during Coomassie/silver staining and efficient destaining without gel distortion.
• Combinatorial chemistry: accelerated reaction kinetics under simultaneous heating and mixing in open-vessel configurations.
• Molecular biology: plasmid preparation, restriction digestion, and ligase reactions requiring strict thermal consistency during agitation.
• Microbiology: aerobic bacterial suspension culture in baffled flasks, biofilm formation assays, and antibiotic susceptibility testing under dynamic conditions.
• Protein biochemistry: solubilization of inclusion bodies, refolding optimization, and immunoaffinity binding kinetics studies.

FAQ

What is the maximum load capacity for the standard platform?
The single-tier platform supports up to 5 kg evenly distributed mass at 250 rpm and 80°C, verified per manufacturer’s mechanical stress testing report (Ref: YH-WSZ-MT-2023-087).

Is the heating function compatible with all orbital speeds?
Yes—full temperature control (RT+5°C to 100°C) is maintained across the entire speed range; however, sustained operation above 220 rpm at >90°C is recommended only with adequate ventilation to prevent localized overheating of motor housing.

Can the WSZ series be integrated into a central lab automation network?
Via optional RS-485 Modbus RTU interface (add-on module), enabling bi-directional communication with building management systems or SCADA platforms for centralized monitoring and alarm triggering.

Does the unit support IQ/OQ documentation packages?
YiHeng provides factory-issued Installation Qualification (IQ) templates and Operational Qualification (OQ) test protocols aligned with USP Analytical Instrument Qualification guidelines—available upon request with purchase confirmation.