AnYuJie AYJ-KB160B Water-Jacketed Tri-Gas Incubator

Overview

The AnYuJie AYJ-KB160B is a precision-engineered water-jacketed tri-gas incubator designed for physiologically relevant cell and microbial culture under dynamically controlled oxygen (O₂), carbon dioxide (CO₂), and nitrogen (N₂) atmospheres. Unlike standard CO₂ incubators, this system implements independent, closed-loop gas regulation to establish and maintain stable hypoxic (1–5% O₂), normoxic (21% O₂), hyperoxic (up to 95% O₂), or anaerobic (<1% O₂) environments—critical for modeling tumor microenvironments, stem cell differentiation pathways, obligate anaerobe physiology, and seed germination kinetics. Its water-jacketed thermal architecture ensures exceptional temperature stability and minimal drift across the full operating range (RT+3°C to 60°C), while the six-surface heating system—complemented by an independent door-heating circuit—achieves ±0.3°C uniformity at 37°C, as verified per ISO 13485-aligned internal calibration protocols.

Key Features

• Triple-gas control logic: Dual-mode gas injection strategy—N₂/CO₂ blending for O₂ ≤19.8%, and O₂/CO₂ blending for O₂ ≥23%—ensures stoichiometric accuracy without cross-interference between CO₂ and O₂ setpoints.
• High-fidelity sensing architecture: Non-dispersive infrared (NDIR) CO₂ sensor (long-term drift <0.02%/month); zirconia-based electrochemical O₂ sensor (±0.2–0.5% full scale, certified per ASTM D6348); and PT100 Class A resistance thermometers distributed across chamber walls and door surface.
• Micro-ventilation air management: Low-turbulence laminar airflow pattern mimics natural convection, reducing O₂ recovery time to ≤10 minutes when transitioning from ambient to 1% O₂—and achieving CO₂ equilibration within 60 seconds after door opening.
• Integrated contamination mitigation: Dual-stage sterilization comprising 254 nm UV-C lamp (intensity ≥100 µW/cm² at 1 m) and HEPA H14 filter (99.995% efficiency at 0.3 µm), validated per ISO 14644-1 Class 5 cleanroom requirements.
• Water-jacketed chamber with seamless 304 stainless-steel interior: Radius-cornered construction eliminates crevices; natural-evaporation humidity system maintains ≥90% RH using corrosion-resistant stainless steel water pan.
• Intelligent safety interlocks: Automatic shutdown of blower and gas solenoids upon door opening; independent overtemperature relay (cut-off at user-defined threshold +2°C); leakage current protection (≤0.5 mA).

Sample Compatibility & Compliance

The AYJ-KB160B supports diverse biological systems requiring strict atmospheric fidelity—including human tumor cell lines (e.g., HT-29, MCF-7 under 1–5% O₂), mesenchymal stem cells (MSCs) cultured at 40–90% O₂ for osteogenic priming, obligate anaerobes such as Clostridium perfringens (ISO 11133-compliant growth), microaerophiles like Helicobacter pylori (CLSI M45 guidelines), and plant seed cohorts subjected to O₂-modulated dormancy release. All gas control algorithms comply with GLP documentation standards, and data logging meets FDA 21 CFR Part 11 requirements for electronic records—supporting audit trails, user authentication, and immutable timestamped event logs. The unit is CE-marked and conforms to IEC 61010-1 (Safety Requirements for Laboratory Equipment) and EN 61326-1 (EMC).

Software & Data Management

The 5.7-inch capacitive touchscreen interface provides real-time visualization of temperature, relative humidity, CO₂, and O₂ profiles—including historical trend graphs with zoom/pan functionality and configurable alarm thresholds. Internal flash memory stores ≥30 days of 1-minute-interval environmental data (exportable via USB-C in CSV format). Optional Ethernet connectivity enables remote monitoring through secure HTTP/HTTPS endpoints compatible with enterprise LIMS integration. All parameter changes are logged with operator ID, timestamp, and pre-/post-value comparison—fulfilling ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

• Tumor biology: Hypoxia-inducible factor (HIF-1α) stabilization studies, chemoresistance screening, and 3D spheroid formation under physiological O₂ gradients (1–5%).
• Regenerative medicine: Directed differentiation of pluripotent stem cells into cardiomyocytes or neural progenitors under defined O₂ tensions (2–40%).
• Microbiological safety testing: Enumeration of anaerobic pathogens per ISO/IEC 17025-accredited food and clinical microbiology workflows (e.g., GB 4789 series).
• Agricultural research: Controlled O₂ exposure for breaking seed dormancy (e.g., Arabidopsis thaliana, rice cultivars) or studying soil microbiome shifts under climate-relevant O₂ partial pressures.
• Bioprocess development: Pre-screening of mammalian cell line viability and productivity across O₂/CO₂ combinations prior to bioreactor scale-up.

FAQ

What gas purity specifications are required for optimal performance?
High-purity gases are mandatory: CO₂ ≥99.995%, O₂ ≥99.99%, N₂ ≥99.999%. Moisture content must be ≤5 ppmv; hydrocarbon contaminants <0.1 ppmv.
Does the incubator support automated gas cylinder switching?
Yes—integrated dual-cylinder manifold with pressure-sensing auto-switch logic minimizes manual intervention during extended experiments.
Is wet-heat sterilization available?
The AYJ-KB160B includes a programmable 90°C humidified heat cycle (validated per ISO 15883-1), capable of >6-log reduction of mycoplasma and bacterial endospores.
How is humidity maintained without active humidification?
Via passive evaporation from a large-surface-area 304 stainless steel water reservoir; RH stability is enhanced by thermal coupling with the water jacket and minimized air exchange during operation.
Can the unit be integrated into a centralized lab building management system (BMS)?
Yes—Modbus TCP and optional BACnet/IP gateways enable interoperability with Siemens Desigo, Honeywell Enterprise Buildings Integrator, and similar platforms.