CZGY DHZ-DA High-Capacity Air-Bath Incubator Shaker

Overview

The CZGY DHZ-DA High-Capacity Air-Bath Incubator Shaker integrates precise temperature control with uniform orbital agitation in a single benchtop platform. Engineered for reproducible cultivation and biochemical reaction conditions, it operates on the principle of forced-air convection heating and cooling—enabled by an integrated compressor, high-efficiency heating element, and PID-controlled thermal regulation—to maintain stable setpoint temperatures across the entire chamber volume (5–60 °C). Its DC brushless motor delivers consistent rotational speed (30–300 rpm) with minimal torque fluctuation and zero carbon dust generation, ensuring long-term operational stability and low maintenance requirements. The unit is designed for continuous-duty laboratory environments where simultaneous incubation and mixing are required—such as aerobic microbial growth, protein expression in suspension cultures, hybridization kinetics, and enzymatic assays under controlled thermal conditions.

Key Features

• Single-tier stainless-steel platform (1000 × 640 mm) with 26 mm orbital amplitude for uniform mixing across large-volume vessels
• Dual independent timer system: separate programmable timers for temperature hold duration (0–9999 min) and oscillation activation (0–9999 min)
• Fuzzy PID temperature control algorithm with ±0.3 °C typical stability at setpoint and ≤0.5 °C uniformity across chamber volume
• Triple-layer insulated chamber with stainless-steel inner lining and reinforced double-glazed observation window with integrated LED illumination
• Brushless DC drive motor providing constant-speed performance, wide speed range (30–300 rpm), and ±0.5 rpm speed accuracy
• Integrated refrigeration-compression system enabling sub-ambient operation down to 5 °C, critical for thermosensitive cell lines and enzyme studies
• Front-access design with ergonomic door latch and removable platform for rapid cleaning and configuration changes

Sample Compatibility & Compliance

The DHZ-DA accommodates diverse vessel formats without adapter modification: up to eight 3 L Erlenmeyer flasks, twenty-four 1 L bottles, or sixty 250 mL culture vessels—optimized for scalability from pilot-scale fermentation to high-throughput screening. Chamber dimensions (1190 × 720 × 440 mm) support standard ISO/IEC 17025-compliant labware stacking protocols. All electrical components comply with IEC 61010-1 safety standards for laboratory equipment. Temperature and timing logs—when exported via optional RS-232 interface—support GLP documentation requirements; the system architecture permits integration into validated workflows aligned with FDA 21 CFR Part 11 when paired with compliant third-party data acquisition software.

Software & Data Management

While the DHZ-DA operates via an embedded microcontroller with segment LCD interface (no onboard PC or touchscreen), it supports external monitoring and logging through its standard RS-232 serial port. Users may connect to Windows/Linux-based terminal emulators or LabVIEW-compatible DAQ systems for real-time parameter streaming (temperature, speed, elapsed time). Optional firmware upgrades enable CSV-formatted log export at user-defined intervals (1 s to 60 min resolution). Audit trails—including parameter changes, power cycle events, and timer completions—are timestamped and retained in non-volatile memory for traceability during internal quality audits or regulatory inspections.

Applications

• Aerobic cultivation of bacteria, yeast, and mammalian suspension cells under tightly controlled thermal and agitation conditions
• Optimization of recombinant protein expression in shake-flask bioreactors
• Hybridization experiments requiring precise temperature ramping and sustained agitation (e.g., Southern/Northern blotting pre-hybridization steps)
• Enzyme kinetics studies involving thermostable or cold-adapted isoforms
• Environmental microbiology assays—including BOD/COD sample homogenization and nutrient solubilization at defined temperatures
• Pharmaceutical excipient solubility testing and dissolution profile development per USP
• Plant tissue culture media equilibration and callus dispersion prior to subculturing

FAQ

Does the DHZ-DA support programming multiple temperature ramps within a single run?

No—the unit implements single-setpoint temperature control only. Ramp-and-soak profiles require external programmable controllers interfaced via RS-232.
Is the chamber humidity controlled?

No—this is a dry-air convection system. Humidity management requires supplemental humidification modules or external environmental chambers.
Can the shaker operate safely at 5 °C ambient room temperature?

Yes—the compressor-based cooling system maintains setpoints as low as 5 °C regardless of ambient conditions between 10–30 °C.
What is the maximum load weight the platform can support while maintaining specified speed accuracy?

The platform is rated for ≤35 kg distributed load. Exceeding this may affect speed stability and thermal uniformity, particularly above 250 rpm.
Are calibration certificates available for temperature and speed sensors?

Factory calibration reports are provided with each unit. NIST-traceable third-party calibration services are supported upon request, with documented uncertainty budgets per ISO/IEC 17025.