Taicang DHZ-CA High-Capacity Air-Bath Constant-Temperature Orbital Shaker

Overview

The Taicang DHZ-CA High-Capacity Air-Bath Constant-Temperature Orbital Shaker is engineered for reproducible, large-scale cultivation and mixing of biological samples under tightly controlled thermal and mechanical conditions. Utilizing an air-bath heating system with PID-controlled feedback loop, the unit maintains stable temperature setpoints across its full operating range (ambient +5°C to 60°C) with an accuracy of ±0.1°C and uniformity of ±0.5°C—critical for sensitive applications such as microbial growth kinetics, protein expression in E. coli cultures, and mammalian cell suspension expansion. Its orbital shaking motion (not reciprocating or linear) ensures gentle yet effective suspension of cells and particles without shear-induced damage, while the 26 mm amplitude provides optimal oxygen transfer efficiency in aerobic cultures. Designed for continuous operation in core laboratories, bioprocessing development labs, and quality control environments, the DHZ-CA integrates structural rigidity, thermal stability, and scalable sample handling into a single-platform solution.

Key Features

• High-capacity single-tier platform (880 × 540 mm) accommodating up to eight 3 L Erlenmeyer flasks—or equivalently, 24 × 1 L, 40 × 500 mL, or 60 × 250 mL vessels—enabling parallel processing for fermentation optimization and strain screening.
• Precise digital PID temperature control with real-time LED display, delivering ±0.1°C setpoint accuracy and ±0.5°C chamber-wide uniformity—validated per ISO 17025 traceable protocols.
• Adjustable orbital oscillation frequency from 40 to 280 rpm, calibrated using factory-certified tachometric verification; speed stability maintained within ±1 rpm under full load.
• Robust steel frame construction with reinforced support columns and vibration-dampened base, minimizing transmission of operational harmonics to adjacent instrumentation.
• Programmable timer (0–999 minutes) with auto-shutdown and audible alarm—compliant with GLP documentation requirements for time-bound incubation protocols.
• Integrated 20 W illumination lamp with independent switch, facilitating visual monitoring of culture turbidity or precipitation without opening the chamber door.

Sample Compatibility & Compliance

The DHZ-CA accommodates standard laboratory glassware including borosilicate Erlenmeyer flasks (with silicone stoppers or vented caps), baffled flasks for enhanced aeration, and universal spring-loaded clamps compatible with round-bottom and conical vessels. It supports common media formulations used in microbiology (e.g., LB, TB), yeast cultivation (YPD), and recombinant protein production (SOC, Terrific Broth). The unit conforms to IEC 61010-1:2010 safety standards for electrical equipment in laboratory use and meets electromagnetic compatibility (EMC) requirements per EN 61326-1. While not certified for Class II biosafety containment, it is routinely deployed in BSL-1 and BSL-2 laboratories when paired with appropriate containment strategies (e.g., sealed flasks, secondary containment trays).

Software & Data Management

The DHZ-CA operates as a standalone instrument with no embedded software or network interface. All operational parameters—including temperature setpoint, oscillation speed, and timer duration—are configured via front-panel push-button controls and displayed on a high-contrast LED screen. For audit-trail compliance in regulated environments (e.g., pharmaceutical QC labs operating under FDA 21 CFR Part 11), users are advised to record settings manually in bound logbooks or integrate the shaker into external environmental monitoring systems via analog output modules (optional accessory). Calibration certificates for temperature and speed sensors are available upon request and include traceability to NIM (National Institute of Metrology, China) standards.

Applications

• Microbial fermentation process development and scale-down modeling for bioreactor transfer studies.
• Long-duration bacterial and yeast culture maintenance during library construction or plasmid amplification workflows.
• Suspension-based mammalian cell line expansion prior to transfection or bioreactor inoculation.
• Enzyme activity assays requiring consistent thermal and mixing conditions over extended timeframes.
• Environmental microbiology sampling preparation, including soil slurry homogenization and waterborne pathogen enrichment.
• Educational laboratory instruction in biochemistry and molecular biology courses emphasizing reproducible culturing techniques.

FAQ

Is the DHZ-CA suitable for use with volatile organic solvents?

No—the air-bath design and internal electronics are not rated for explosion-proof or solvent-resistant operation. Use only with aqueous or low-volatility buffers.
Can the platform be replaced with a custom tray or microplate adapter?

Yes—standard M6 threaded mounting holes are spaced at 100 mm intervals across the platform surface, enabling user-fabricated fixtures compliant with ISO 9001 mechanical tolerance guidelines.
Does the unit include a calibration certificate by default?

No—calibration documentation is provided as an optional service at time of order; factory calibration is performed pre-shipment but not formally certified unless requested.
What maintenance is required to ensure long-term thermal accuracy?

Annual verification of temperature sensor drift using a NIST-traceable RTD probe and periodic cleaning of air-intake grilles to prevent dust accumulation in the heating chamber.
Is remote monitoring or Ethernet connectivity supported?

Not natively—the DHZ-CA lacks digital communication ports. Integration with building management systems requires third-party analog signal converters (e.g., 4–20 mA temperature output modules).