JH-Jianhu JH-ANOXIC Drying Oven with Inert Atmosphere Control
| Brand | Jianhu |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Region Classification | Domestic (China) |
| Model | JH-ANOXIC Drying Oven |
| Price Range | USD 1,050 – 105,000 |
Overview
The JH-Jianhu JH-ANOXIC Drying Oven is a precision-engineered thermal processing system designed for applications requiring strict exclusion of oxygen and moisture during drying, annealing, curing, or aging procedures. Built upon a robust convection-heated chamber architecture, it integrates dual-stage inert gas purging (N₂ or Ar), high-seal integrity chamber design, and PID-controlled temperature regulation to establish and maintain stable anoxic/anaerobic environments — typically achieving O₂ concentrations below 100 ppm and relative humidity <5% RH within the working volume. Unlike standard forced-air ovens, this system incorporates real-time atmosphere monitoring ports, pressure-balanced gas inlet/outlet manifolds, and optional residual oxygen sensors (0–1,000 ppm range), enabling trace-level environmental control essential for oxidation-sensitive materials. Its operational principle relies on continuous gas displacement and laminar flow management to eliminate convective air ingress, making it suitable for processes governed by ASTM F1980 (accelerated aging of sterile barrier systems), ISO 11607 (packaging for terminally sterilized medical devices), and USP (plastic packaging systems for pharmaceuticals).
Key Features
- Triple-layer insulated stainless-steel chamber with welded seams and fluorosilicone gasketing for >1×10⁻³ mbar·L/s helium leak rate performance
- Dual independent gas inlets supporting sequential or simultaneous N₂/Ar purge protocols with mass flow controllers (MFCs) calibrated per ISO 6344
- Microprocessor-based PID temperature controller with ±0.3°C uniformity across 30–250°C operating range and ramp/soak programming capability
- Integrated over-temperature cut-off, door-open interlock, and gas-flow failure alarm compliant with IEC 61000-6-2 EMC standards
- Front-panel touchscreen interface with data logging (CSV export), password-protected parameter access, and configurable alarm thresholds
- Optional integrated paramagnetic O₂ sensor (0–1,000 ppm) with 4–20 mA analog output and RS485 Modbus RTU communication
Sample Compatibility & Compliance
The JH-ANOXIC Drying Oven accommodates a broad spectrum of sample formats including ceramic substrates, lithium-ion battery electrode wafers, thin-film photovoltaic layers, catalytic metal powders, pharmaceutical excipients, and archival paper specimens. Chamber dimensions (standard variants: 300 × 300 × 300 mm to 800 × 800 × 1,000 mm) support both batch and rack-mounted configurations. All structural materials meet RoHS Directive 2011/65/EU and are certified non-outgassing per ASTM E595. The system supports GLP/GMP documentation workflows via optional audit-trail-enabled software, meeting FDA 21 CFR Part 11 requirements for electronic records and signatures when paired with validated firmware. It complies with CE marking under the Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU.
Software & Data Management
The embedded control firmware supports local data storage (≥10,000 timestamped records) and USB export of temperature profiles, gas flow rates, and alarm events. Optional PC-based JianhuLab™ Suite provides remote monitoring, multi-unit fleet management, automated report generation (PDF/Excel), and integration with LIMS platforms via OPC UA or RESTful API. All data logs include operator ID, session start/end timestamps, and digital signature fields to satisfy ISO/IEC 17025 clause 7.5.2 (technical record requirements). Firmware updates are delivered via signed binary packages with SHA-256 hash verification to ensure integrity and traceability.
Applications
- Pre-oxidation treatment of copper and aluminum foils used in flexible printed circuit boards (IPC-4101)
- Drying of moisture-sensitive active pharmaceutical ingredients (APIs) prior to lyophilization or tablet compression (ICH Q5C)
- Thermal stabilization of perovskite solar cell precursors under nitrogen blanket (IEEE 1620.1)
- Aging studies of ethylene-propylene-diene monomer (EPDM) elastomers in controlled inert atmospheres (ASTM D573)
- Dehydration of museum-grade parchment and cellulose acetate film without hydrolytic degradation (ISO 18937)
- Post-deposition annealing of MoS₂ and WS₂ 2D material films to suppress sulfur vacancy formation
FAQ
What inert gases are compatible with the JH-ANOXIC Drying Oven?
Nitrogen (N₂) and argon (Ar) are fully supported; helium (He) may be used with MFC recalibration. Compressed air or reducing gases (e.g., H₂/N₂ mixtures) are not permitted due to safety interlock constraints.
Can the oven operate continuously at 250°C under full inert gas flow?
Yes — thermal stability testing confirms sustained operation at 250°C for ≥720 hours with ≤0.5°C drift, provided ambient room temperature remains below 30°C and ventilation meets ISO 14644-1 Class 8 airflow requirements.
Is third-party IQ/OQ/PQ validation support available?
Jianhu provides protocol templates aligned with ASTM E2500 and offers on-site qualification assistance through ISO 17025-accredited partners in North America, EU, and APAC regions.
How is chamber leak integrity verified during installation?
A helium mass spectrometer leak test is performed onsite using EN 1330-8 methodology, with results documented in the Factory Acceptance Test (FAT) report.
Does the system meet explosion-proof certification requirements?
The base configuration is rated for non-hazardous locations (Class I, Division 2, Group A–D per NEC Article 500); ATEX or IECEx variants require custom engineering and are available upon request.
