Shanghai Youyi GRX-9023A Hot Air Sterilization and Drying Oven

Overview

The Shanghai Youyi GRX-9023A Hot Air Sterilization and Drying Oven is a precision-engineered laboratory-grade convection oven designed for dry-heat sterilization, thermal decontamination, moisture removal, and post-processing drying of heat-stable instruments, glassware, metal tools, and inert laboratory materials. Operating on the principle of oxidative microbial inactivation—where elevated temperatures induce irreversible protein denaturation, lipid peroxidation, and cytoplasmic electrolyte concentration—the GRX-9023A delivers validated sterility assurance for applications requiring ISO 17665-compliant dry-heat cycles or USP & EP-defined depyrogenation protocols. Unlike moist-heat autoclaving, this system eliminates reliance on steam saturation and avoids corrosion or hydrolysis risks associated with aqueous environments, making it ideal for sterilizing powders, oils, anhydrous reagents, and sealed containers.

Key Features

• Forced-air convection system with rear-mounted axial fan ensures rapid thermal equilibration and minimizes cold spots—achieving setpoint within ≤12 minutes from ambient (RT+10°C) to 180°C under no-load conditions.
• Microprocessor-based PID temperature controller with 0.1°C resolution and ±1°C fluctuation tolerance enables precise thermal programming and repeatability across consecutive runs.
• Double-layer tempered glass observation window with argon-filled interlayer provides real-time visual monitoring while maintaining thermal integrity and operator safety.
• Independent mechanical over-temperature safety cut-off (adjustable up to 280°C) operates independently of the main control circuit—complying with IEC 61010-1 requirements for Class II laboratory equipment.
• Two freely adjustable, load-rated stainless steel shelves (304 grade) support uniform airflow distribution and accommodate varied sample geometries without obstructing convective circulation.
• Non-volatile memory retains user-defined parameters—including target temperature, dwell time, ramp rate, and alarm thresholds—during power interruption, enabling seamless recovery upon re-energization.
• Electrostatically coated cold-rolled steel exterior and electropolished 304 stainless steel interior resist chemical exposure and facilitate GLP-compliant cleaning validation.

Sample Compatibility & Compliance

The GRX-9023A is validated for use with borosilicate glassware (e.g., pipettes, Petri dishes), stainless steel surgical instruments, ceramic crucibles, aluminum weighing boats, and polymer components rated for continuous exposure up to 250°C (e.g., PTFE, polyimide). It meets structural and operational requirements referenced in ISO 13485:2016 (Medical Device Quality Management), ASTM E2500-13 (Verification of Pharmaceutical Equipment), and supports audit-ready documentation when paired with optional RS485 interface and compliant data logging software. The unit’s thermal uniformity profile (±2.5% across chamber volume) satisfies minimum qualification criteria for Class B dry-heat sterilizers per EN 285 Annex C and aligns with FDA guidance for depyrogenation validation (e.g., 250°C × 45 min cycle equivalence).

Software & Data Management

While the base configuration features an embedded LCD interface supporting manual operation and local parameter storage, optional digital upgrades enhance traceability and regulatory readiness: the RS485 communication module (with Modbus RTU protocol) enables integration into centralized LabVantage or DeltaV SCADA systems; the embedded printer outputs timestamped thermal logs with operator ID, cycle parameters, and deviation alerts; and the multi-segment programmable controller supports up to 32-step ramp-hold profiles for complex thermal processing sequences. All optional modules comply with FDA 21 CFR Part 11 requirements when deployed with appropriate electronic signature and audit trail configurations.

Applications

• Dry-heat sterilization of reusable labware prior to aseptic procedures (e.g., microbiology media preparation, cell culture setup)
• Depyrogenation of glass vials and syringes used in parenteral manufacturing
• Moisture conditioning and residual solvent removal from polymers, ceramics, and catalyst substrates
• Thermal aging studies for material stability testing (ASTM D3045, ISO 2578)
• Pre-weighing desiccation of hygroscopic standards and reference materials
• Post-cleaning drying of high-purity quartz and sapphire optical components

FAQ

What is the maximum validated sterilization temperature for the GRX-9023A?
The chamber is rated for continuous operation at 250°C, with safety-limited override up to 280°C. Validated dry-heat sterilization cycles (e.g., 160°C × 120 min or 180°C × 30 min) are achievable per ISO 17665-1 Annex A.
Does the unit support IQ/OQ/PQ documentation packages?
Yes—factory-provided qualification templates, sensor calibration certificates (NIST-traceable PT100 probes), and thermal mapping reports are available upon request to support installation, operational, and performance qualification.
Can the oven be integrated into a networked laboratory information management system (LIMS)?
With the optional RS485 interface and配套 software, real-time temperature streaming, remote start/stop commands, and automated report generation are supported via standard Modbus TCP/IP gateways.
Is the interior chamber suitable for acidic vapor exposure during cleaning?
The electropolished 304 stainless steel liner demonstrates resistance to diluted nitric and citric acid solutions (≤10% v/v); however, prolonged exposure to halogenated acids (e.g., HCl, HF) is not recommended.
What maintenance intervals are recommended for long-term reliability?
Fan motor lubrication and door gasket inspection every 6 months; annual verification of temperature sensor accuracy and PID tuning parameters using external calibrated reference thermometers (e.g., Fluke 1523).