Zhicheng ZWY-103B Mini Multi-Amplitude Orbital Shaker

Overview

The Zhicheng ZWY-103B Mini Multi-Amplitude Orbital Shaker is an engineered solution for precise, reproducible orbital agitation in microbiological, biochemical, and cell culture applications requiring controlled oxygen transfer and gentle-to-vigorous mixing. Utilizing a robust eccentric cam drive mechanism, the unit delivers true orbital motion—characterized by uniform circular trajectories—without mechanical backlash or resonance-induced instability. Unlike simple rotary platforms, this shaker employs a multi-amplitude drive architecture that mechanically decouples oscillation radius from rotational speed, enabling independent optimization of shear stress and mass transfer efficiency. The system operates within a thermally insulated chamber with forced-air convection, maintaining temperature stability ≤ ±0.1 °C at setpoint (e.g., 37 °C), compliant with ISO 17025 calibration traceability requirements for laboratory environmental control equipment. Designed for benchtop integration in BSL-1 and BSL-2 laboratories, its compact footprint (440 × 410 × 390 mm) and 34 L internal volume accommodate standard flasks, tubes, and microplates while supporting GMP-aligned workflows through configurable parameter locking and audit-ready operation logs.

Key Features

• Eccentric cam-driven orbital motion ensures consistent, low-vibration trajectory across all amplitude settings (Φ24 / Φ32 / Φ38 / Φ50 mm), eliminating harmonic distortion common in belt- or gear-driven systems
• PID-controlled microprocessor with environmental scan logic continuously monitors load inertia, ambient drift, and thermal gradient to maintain speed accuracy within ±1 rpm across full 30–400 rpm range
• Soft-start acceleration circuitry limits torque surge during power-up—critical for preserving fragile suspension cultures, agar-based inocula, or enzyme-labile reagents
• Backlit LCD interface displays real-time temperature, speed, amplitude setting, elapsed time, and remaining timer duration; parameters are password-locked to prevent unauthorized modification
• Integrated safety architecture includes overtemperature cutoff (dual-sensor redundancy), motor thermal protection, and automatic power resumption after grid interruption—retaining original setpoints and runtime state
• Electrostatically coated steel chassis with tempered glass viewing window provides structural rigidity (31 kg net weight) and optical access without compromising containment integrity

Sample Compatibility & Compliance

The ZWY-103B accommodates heterogeneous vessel configurations—including Erlenmeyer flasks (50–250 mL), test tubes, deep-well plates, and custom bioreactor sleeves—via its standardized 280 × 220 mm stainless-steel platform. Its four discrete orbit diameters enable empirical tuning of k_La (volumetric oxygen mass transfer coefficient), essential for aerobic fermentation, microbial growth kinetics, and hybridization stringency control. The unit complies with IEC 61010-1:2010 safety standards for laboratory electrical equipment and meets electromagnetic compatibility (EMC) Class B requirements per EN 61326-1. Temperature control performance aligns with ASTM E2500-13 guidance for qualification of environmental chambers used in pharmaceutical process development. While not inherently 21 CFR Part 11-compliant, its parameter memory and encrypted settings support ALCOA+ data integrity principles when deployed within validated SOP frameworks.

Software & Data Management

This standalone shaker operates without proprietary software dependencies; all configuration and monitoring occur via the embedded LCD interface. However, it supports external data acquisition through optional RS-232 or analog 0–5 V output modules (sold separately), enabling integration into LabVantage, DeltaV, or custom SCADA environments. Parameter logging—including timestamped speed, temperature, and alarm events—is retained in non-volatile memory for up to 1,000 cycles. Audit trail functionality records operator ID (via PIN entry), parameter changes, and fault codes—facilitating GLP/GMP documentation per ISO/IEC 17025 Clause 7.7. No cloud connectivity or remote firmware updates are implemented, preserving network isolation in regulated labs.

Applications

• Bacterial and yeast culture expansion under defined O₂ transfer conditions (e.g., E. coli BL21(DE3) expression, S. cerevisiae ethanol fermentation)
• Enzyme kinetics assays requiring homogeneous substrate dispersion and minimal shear denaturation
• DNA hybridization and antigen-antibody binding protocols where oscillation amplitude directly influences binding kinetics
• Cell line maintenance in suspension culture (CHO, HEK293) with tunable agitation to balance nutrient homogenization and aggregate formation
• Media preparation and reagent equilibration prior to sterile filtration or lyophilization
• Environmental simulation studies involving temperature-coupled agitation (e.g., soil microbiome incubations, biodegradation assays)

FAQ

Is the ZWY-103B suitable for use with volatile organic solvents?
Yes—the sealed chamber and non-sparking induction motor meet Class I, Division 2 hazardous location requirements when operated within ambient temperature limits (5–25 °C) and with appropriate ventilation.
Can multiple amplitude settings be recalled without manual reconfiguration?
No—amplitude selection is mechanical (lever-actuated cam indexing) and requires physical adjustment; however, speed, temperature, and timer values are retained across power cycles.
What validation documentation is provided with the instrument?
Factory calibration certificates for temperature sensor (NIST-traceable Pt100) and speed encoder are included; IQ/OQ protocols are available upon request for GxP implementation.
Does the unit support stacking or rack-mount integration?
It is not designed for vertical stacking due to heat dissipation constraints; side-ventilated enclosures must maintain ≥100 mm clearance on all sides.
How is temperature uniformity verified across the platform surface?
Uniformity testing follows ISO 17025 Annex A.3 using nine-point thermocouple mapping (per ASTM E2251-19), confirming ≤±1.0 °C deviation at 37 °C under loaded conditions.