ZWY-200D Full-Temperature Programmable Orbital Shaker

Overview

The ZWY-200D Full-Temperature Programmable Orbital Shaker is an engineered platform for precise, reproducible incubation and agitation of biological samples under tightly controlled thermal and mechanical conditions. Designed for demanding life science workflows—including aerobic microbial culture, enzymatic assays, hybridization protocols, and cell suspension maintenance—the instrument integrates a high-efficiency forced-air convection system with a microprocessor-driven orbital drive mechanism. Its core operational principle relies on eccentric cam-based orbital motion generation, enabling continuous, smooth, and controllable rotation of the platform across a wide range of frequencies (30–600 rpm) and orbit diameters (Φ0–50 mm). Unlike fixed-amplitude shakers, the ZWY-200D’s infinitely adjustable orbit diameter allows users to modulate shear stress, gas transfer efficiency (k_La), and mixing homogeneity—critical parameters in oxygen-sensitive fermentations and suspension-based bioprocess development. The unit employs a brushless AC induction motor with constant-torque output and soft-start acceleration logic, eliminating mechanical shock during startup and ensuring sample integrity across fragile cell cultures or low-volume reagent preparations.

Key Features

• Infinitely variable orbital amplitude (Φ0–50 mm) for fine-tuned control over mixing intensity and dissolved oxygen transfer rates
• PID-controlled temperature regulation from 4 °C to 60 °C with ±0.1 °C stability at 37 °C and ≤±1 °C uniformity across chamber volume
• High-resolution LCD display with backlight, showing real-time setpoints and measured values for temperature, speed, and timer
• Programmable timer up to 500 hours with auto-restart functionality after power interruption
• Intelligent safety system featuring over-temperature alarm (audible + visual), motor overheat protection, and automatic power cutoff upon thermal fault detection
• Parameter lock function to prevent accidental modification during long-term unattended runs
• Non-volatile memory retains last-used settings for rapid reconfiguration between experiments
• Ergonomic steel-framed chamber with tempered glass viewing window and electrostatically coated steel interior for corrosion resistance and easy decontamination
• Robust structural design supporting maximum load configurations: up to 5 × 1000 mL Erlenmeyer flasks or 23 × 50 mL tubes per shelf

Sample Compatibility & Compliance

The ZWY-200D accommodates standard laboratory vessels including Erlenmeyer flasks (50–1000 mL), test tubes, deep-well plates, and custom bioreactor sleeves. Its 400 × 370 mm stainless-steel platform supports universal clamping accessories (sold separately) compatible with silicone, rubber, and magnetic flask holders. The chamber’s forced-air circulation ensures uniform thermal distribution—validated per ISO 13408-2 Annex B for incubator performance verification—and meets general requirements for GLP-compliant microbiological cultivation environments. While not certified to IEC 61010-1 or UL 61010B out-of-the-box, the device incorporates essential electrical safety features including grounded chassis, thermal fusing, and reinforced insulation. Users implementing the shaker in regulated QC/QA labs may configure audit trails via external data loggers compliant with FDA 21 CFR Part 11 when paired with validated software interfaces.

Software & Data Management

The ZWY-200D operates autonomously via its embedded microcontroller without requiring proprietary PC software. All operational parameters—including temperature setpoint, orbital speed, amplitude, and timer—are configured directly through the front-panel interface and stored in non-volatile memory. For laboratories requiring electronic recordkeeping, optional RS-232 or USB-to-serial adapters enable integration with third-party data acquisition systems (e.g., LabVIEW, MATLAB, or custom Python scripts) for time-stamped logging of temperature and speed profiles. Though no native cloud connectivity or remote monitoring is built-in, the unit’s stable analog/digital signal outputs support integration into centralized facility monitoring platforms compliant with ISO/IEC 17025 environmental monitoring guidelines.

Applications

• Aerobic bacterial and yeast cultivation requiring precise O₂ transfer optimization
• Protein expression in liquid media using E. coli or Pichia pastoris strains
• Hybridization kinetics studies for DNA/RNA probe binding under temperature-coupled agitation
• Enzyme activity assays where substrate homogenization and thermal consistency are critical
• Mammalian cell suspension expansion in serum-free or low-serum formulations
• Environmental microbiology: enrichment cultures for heterotrophic plate count (HPC) or coliform analysis per APHA Standard Methods
• Pharmaceutical stability testing involving shaken solution formulations per ICH Q1A(R2)

FAQ

Does the ZWY-200D support cooling below ambient temperature?

No. It provides heating and thermostatic control down to 4 °C but lacks active refrigeration; operation below ambient requires an externally cooled room environment.
Is the orbital amplitude calibrated traceably to international standards?

The amplitude adjustment is mechanically indexed and repeatable within manufacturing tolerances; formal calibration certificates are available upon request for metrological validation.
Can multiple shelves be installed?

No. The ZWY-200D is configured with a single fixed-position platform optimized for load distribution and thermal uniformity.
What is the recommended maintenance schedule?

The brushless motor requires no routine lubrication; users should inspect door gaskets and clean chamber surfaces quarterly, and verify temperature sensor accuracy annually using NIST-traceable reference probes.
Is the unit suitable for use in Class II biosafety cabinets?

Due to its power draw (700 W) and heat dissipation profile, it is not designed for internal cabinet installation; external placement with ducted exhaust is recommended for containment applications.