Langbo ZHWY-2112 Large-Capacity Dual-Shelf Full-Temperature Orbital Shaker

Overview

The Langbo ZHWY-2112 is a dual-shelf, full-temperature orbital shaker engineered for high-throughput incubation and cultivation applications in microbiology, molecular biology, and bioprocess development laboratories. It operates on the principle of horizontal circular oscillation—providing uniform mixing and suspension of liquid cultures while maintaining precise thermal control across a wide ambient-to-moderate-heat range (5–60 °C). Unlike single-shelf units, its vertically stacked architecture doubles sample capacity without increasing floor footprint—making it especially suitable for labs constrained by space but requiring parallel processing of multiple flasks, bottles, or deep-well plates. The system integrates independent heating and cooling modules powered by an imported hermetic compressor and environmentally compliant R134a refrigerant, enabling stable temperature regulation with ≤±0.1 °C accuracy under dynamic load conditions.

Key Features

• Dual independent shelves (2 × 800 × 500 mm trays), each supporting up to 20 L total culture volume per shelf
• Stepless speed control from 30 to 280 rpm with real-time digital feedback and ±1 rpm repeatability
• Microprocessor-based PID temperature control with LED interface, membrane-keypad input, and password-protected parameter locking
• Integrated safety architecture: overtemperature/low-temperature cut-off, ground-fault circuit interruption (GFCI), automatic shutdown upon lid opening, and fault-condition alerting (e.g., door misalignment, timer expiration)
• Energy-efficient design featuring brushless DC motor (no carbon brushes, >10,000 hr service life), 500 W heating element, and 280 W vapor-compression cooling per shelf
• Standard accessories include stainless-steel spring clamps, 20 W energy-saving illumination lamp, and 20 W UV germicidal lamp (254 nm) mounted inside each chamber

Sample Compatibility & Compliance

The ZHWY-2112 accommodates standard laboratory vessels including Erlenmeyer flasks (up to 5 L), baffled flasks, culture bottles, multi-well plates (with optional adapters), and custom bioreactor bags mounted on reinforced trays. Its stainless-steel interior chamber and cold-rolled steel exterior with epoxy-polyester coating ensure corrosion resistance and ease of decontamination—critical for GLP-compliant cell banking and QC workflows. While not certified to ISO/IEC 17025 or FDA 21 CFR Part 11 out-of-the-box, the instrument supports audit-ready operation when integrated with validated LIMS or ELN systems: all setpoints (temperature, speed, time), runtime logs, and alarm events are timestamped and stored in non-volatile memory. Optional upgrades include humidity control (±3% RH) and programmable light cycles (0–10,000 lux, 300–800 nm spectrum), aligning with photobioreactor qualification requirements per ASTM D7211 and USP .

Software & Data Management

The embedded controller retains up to 10 user-defined protocols with encrypted access, allowing secure storage of critical parameters such as ramp rates, hold durations, and recovery profiles. Though standalone operation is fully functional via front-panel interface, optional RS-485/Modbus RTU communication enables integration into centralized building management systems (BMS) or supervisory control and data acquisition (SCADA) platforms. All operational data—including actual vs. setpoint deviation curves, cumulative run hours, and compressor duty cycles—can be exported via USB port in CSV format for traceability and trending analysis. Firmware updates are performed offline using signed binary files, ensuring integrity and version control consistent with ICH GCP Annex 11 expectations for regulated environments.

Applications

• Microbial growth kinetics studies (E. coli, yeast, Bacillus spp.) under controlled aerobic conditions
• Protein expression in shake-flask bioreactors prior to scale-up in stirred-tank systems
• Cell suspension culture for mammalian or insect cell lines requiring gentle agitation and thermal stability
• Enzyme activity assays and ligand-binding experiments where temperature-dependent conformational changes must be resolved
• Environmental microbiology: BOD incubation, activated sludge acclimation, and biodegradation screening per ISO 10230 and EPA Method 1681
• Pharmaceutical stability testing (ICH Q1A–Q1E) involving accelerated degradation under variable agitation and temperature stress

FAQ

What is the maximum flask size supported per shelf?
Each 800 × 500 mm tray accommodates up to four 5 L Erlenmeyer flasks or eight 2 L flasks with proper spacing for airflow and heat exchange.
Does the unit support remote monitoring or network connectivity?
Standard configuration includes RS-485 Modbus RTU; Ethernet or Wi-Fi modules are available as factory-installed options for integration with LabVantage or Thermo Fisher SampleManager.
Is the UV lamp suitable for routine sterilization of internal surfaces?
Yes—the 254 nm UV-C lamp provides ≥100 µW/cm² irradiance at 1 m distance and is intended for periodic surface decontamination between batches, complying with ISO 15883-1 for non-invasive lab equipment disinfection.
Can both shelves operate at different temperatures or speeds simultaneously?
No—the ZHWY-2112 maintains synchronized setpoints across both shelves; independent zone control is not implemented in this model.
What maintenance intervals are recommended for the refrigeration system?
Compressor oil and refrigerant charge require verification every 24 months under continuous operation; filter-drier replacement is advised every 36 months per manufacturer’s technical bulletin TB-ZHWY-2112-R04.