Zhongwei ZWY-3222B Dual-Layer High-Capacity Orbital Shaker

Overview

The Zhongwei ZWY-3222B Dual-Layer High-Capacity Orbital Shaker is an engineered solution for scalable, temperature-stable incubation and agitation in life science laboratories and bioprocessing environments. Designed for continuous operation within a controlled ambient chamber or dedicated incubator room, this shaker employs orbital (circular) motion driven by an eccentric mechanism—ensuring uniform mixing across large-volume culture vessels without vortexing or splashing. Its dual-tier configuration supports parallel processing of up to two full-sized shaking platforms (each 920 × 640 mm), enabling high-throughput bacterial fermentation, recombinant protein expression, cell suspension culture, and biochemical assay preparation under consistent mechanical and thermal conditions. The unit operates via a PID-controlled microprocessor that continuously scans environmental feedback to maintain setpoint accuracy, even during extended runs exceeding several days.

Key Features

• Brushless AC induction motor with wide-speed range (30–300 rpm) and ±1 rpm speed stability—eliminating carbon brush wear and reducing long-term maintenance requirements.
• Controlled acceleration profile ensures gentle ramp-up from rest to target speed, minimizing shear stress on sensitive biological samples such as mammalian cells or fragile microbial colonies.
• Two independently supported stainless-steel-reinforced aluminum shelves (920 × 640 mm each) mounted on precision-cast iron frames for vibration-dampened, low-drift operation at all speeds.
• Backlit LCD interface displays real-time values for speed, elapsed time, remaining timer duration, and system status—accessible without opening the chamber door.
• Parameter encryption function prevents unauthorized modification of critical settings during shared-lab use or GxP-compliant workflows.
• Power-fail recovery mode automatically resumes pre-interruption operation—including speed, time remaining, and active protocol—upon restoration of line voltage.
• Electrostatically sprayed steel enclosure resists corrosion and facilitates routine decontamination; integrated ventilation slots support natural convection cooling of internal electronics.

Sample Compatibility & Compliance

The ZWY-3222B accommodates standard laboratory vessels including Erlenmeyer flasks (up to 5 L), Fernbach flasks, baffled bottles, and multi-well plates mounted on custom adapters. Its Φ35 mm orbit diameter provides optimal oxygen transfer for aerobic cultures while maintaining laminar fluid dynamics essential for reproducible growth kinetics. The device complies with IEC 61000-6-3 (EMC emissions) and IEC 61000-6-2 (immunity) standards. While not certified for Class II biosafety containment, it is routinely deployed in ISO 14644-1 Class 7 cleanrooms when installed inside ventilated enclosures. For regulated environments, its parameter memory, audit-ready timer logs, and non-volatile setting retention align with GLP documentation expectations and support traceability under FDA 21 CFR Part 11 when paired with validated electronic lab notebook (ELN) integration.

Software & Data Management

This model operates as a standalone hardware platform with no embedded firmware-based data export capability. All operational parameters—including start/stop timestamps, speed profiles, and alarm events—are retained in non-volatile memory and viewable directly on the LCD screen. For laboratories requiring digital recordkeeping, external USB-connected data loggers or RS-232/RS-485 interfaces (optional add-on modules) may be used to capture time-series speed and timer data into CSV-compatible formats. The unit’s deterministic behavior and repeatable mechanical response make it suitable for inclusion in validation protocols per ASTM E2500 and ISO/IEC 17025 calibration frameworks, particularly when coupled with third-party rotational speed verification tools (e.g., optical tachometers).

Applications

• Microbial fermentation for antibiotic production, vaccine antigen expression, and industrial enzyme synthesis.
• Suspension culture of insect or mammalian cells in serum-free media during upstream bioprocess development.
• Hybridization kinetics studies in molecular biology, including DNA probe binding and immunoassay plate washing optimization.
• Environmental microbiology applications such as wastewater treatment consortium enrichment and soil extract-based biodegradation assays.
• Pharmaceutical QC testing involving dissolution rate profiling of solid dosage forms under agitated aqueous conditions.
• Food safety labs performing pathogen enrichment (e.g., Salmonella, Listeria) in buffered peptone water prior to detection.

FAQ

Is the ZWY-3222B suitable for use inside a CO₂ incubator?
No—the unit is designed for ambient-temperature operation only (5–50 °C) and lacks humidity control or gas-tight sealing. It must be placed outside the incubator, with flasks transferred post-agitation.
Can the two shelves operate at different speeds simultaneously?
No—both platforms are mechanically synchronized and share a single speed control circuit. Independent speed regulation requires separate single-shelf units.
What is the maximum flask load per shelf at 300 rpm?
At full rated speed, total load per shelf should not exceed 25 kg to ensure mechanical integrity and minimize resonance-induced drift.
Does the device meet UL or CE safety certification requirements?
The unit conforms to GB 4793.1–2007 (Chinese national standard equivalent to IEC 61010-1), but carries no UL Listing or CE marking for EU market placement without additional regional conformity assessment.
How often does the motor require lubrication or servicing?
The brushless AC induction motor is sealed and maintenance-free for the lifetime of the instrument under normal operating conditions.