Yuelian YL-AO-300 Anaerobic High-Temperature Aging Oven
| Brand | Yuelian |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | YL-AO-300 |
| Price Range | USD 2,800–7,000 |
| Instrument Type | Benchtop Forced-Convection Box Furnace |
| Max Operating Temperature | 200 °C |
| Temperature Control Accuracy | ±0.1 °C |
| Max Power Rating | 7.5 kW |
| Ramp Rate to Max Temp | ≤45 min (from RT+20 °C) |
| Heating Method | Stainless Steel Sheathed Tubular Heaters |
| Internal Dimensions | 500 mm (W) × 1000 mm (H) × 600 mm (D) |
| External Dimensions | 850 mm (W) × 1535 mm (H) × 800 mm (D) |
| Insulation | 100 mm Thick 80 kg/m³ Rock Wool |
| Door Seal | Imported Japanese High-Tensile Silicone Rubber Gasket (−90 °C to +280 °C) |
| Atmosphere Control | Dual 10–100 L/min N₂ Mass Flow Meters with φ10 mm Quick-Connect Fittings |
| O₂ Monitoring | Integrated Paramagnetic Oxygen Analyzer (Real-Time Display, Alarm Threshold ≤1.0 % v/v) |
| Safety Systems | Independent Over-Temperature Cut-Off, Timer-Based Process Termination, SSR Solid-State Relay Control |
| Air Circulation | Axial-Flow High-Temp Motor with Multi-Blade Turbine Fan |
| Power Supply | 380 V AC, 3-Phase, 60 A Dedicated Circuit |
| Aging Power Output | 50 V DC Adjustable (0–60 A) via Built-in Aging PSU |
Overview
The Yuelian YL-AO-300 Anaerobic High-Temperature Aging Oven is an engineered thermal aging system designed for reliability testing of electronic components—particularly printed circuit boards (PCBs), connectors, and passive devices—under controlled inert-atmosphere conditions. Unlike standard convection ovens, the YL-AO-300 integrates dual nitrogen mass flow control, real-time paramagnetic oxygen monitoring, and a dedicated low-voltage high-current aging power supply to support accelerated life testing per JEDEC JESD22-A108, IPC-9701, and MIL-STD-883H Method 1008. Its core operating principle combines forced-air convection heating with continuous nitrogen purging to maintain oxygen concentrations below 1.0 % v/v throughout extended thermal cycles (up to 2000 hours). The chamber’s structural integrity is ensured by a double-wall construction: inner lining of 1.2 mm SUS304 stainless steel and outer casing of 1.2 mm SPCC cold-rolled steel with electrostatic powder coating. Thermal insulation consists of 100 mm-thick, low-conductivity rock wool (80 kg/m³), enabling stable temperature uniformity of ±3.5 °C (measured at 9 points in empty chamber per ASTM E2207).
Key Features
- Integrated paramagnetic oxygen analyzer with on-screen digital readout and audible/visual alarm triggers at user-defined O₂ thresholds (default: ≤1.0 % v/v)
- Dual independent 10–100 L/min mass flow meters with quick-connect φ10 mm N₂ inlets for dynamic atmosphere replenishment during ramp and soak phases
- 7.5 kW heating capacity delivered via corrosion-resistant stainless steel sheathed tubular heaters, coupled with axial-flow high-temp motor and multi-blade turbine fan for uniform air circulation
- Color touchscreen controller with PID auto-tuning algorithm, real-time PV/SV display, and programmable ramp-soak profiles (up to 99 segments)
- Dedicated 50 V DC aging power supply (0–60 A adjustable) with isolated output, supporting simultaneous biasing of up to six PCB test boards mounted on custom-machined stainless steel slots
- Independent mechanical over-temperature safety cut-off (setpoint separate from main controller), timer-based process termination, and SSR solid-state relay drive for zero-contact switching
- Front-access service panel with standardized 19-inch rack-mount space for optional external data acquisition or HMI integration
Sample Compatibility & Compliance
The YL-AO-300 accommodates standard and custom PCB aging fixtures, including up to six vertically oriented test boards (dimensions specified by user). Internal mounting provisions include pre-drilled slots compatible with high-temperature board retainers and feedthroughs for thermocouple wiring and aging current leads. All internal non-metallic gaskets and seals are rated for continuous operation at 200 °C and certified to UL 94 V-0 flame resistance. The system complies with IEC 61000-6-2 (EMC Immunity) and IEC 61000-6-4 (EMC Emission) standards. While not FDA-registered, its design supports GLP-compliant validation protocols—including IQ/OQ/PQ documentation templates—and meets functional requirements for USP and ISO 17025 traceable thermal mapping when calibrated with NIST-traceable sensors.
Software & Data Management
The embedded controller logs temperature, oxygen concentration, elapsed time, and aging current/voltage at user-configurable intervals (1–600 seconds). Data exports directly to USB-stored CSV files for post-processing in Excel or MATLAB. Optional Ethernet module enables Modbus TCP communication for integration into LabVIEW, SCADA, or MES platforms. Audit trail functionality records all parameter changes, operator logins, and alarm events with timestamps—supporting 21 CFR Part 11 compliance when paired with third-party electronic signature software. Firmware updates are performed via secure USB key with SHA-256 checksum verification.
Applications
- Accelerated thermal aging of automotive-grade PCBAs under nitrogen atmosphere (AEC-Q200 qualification)
- High-temperature storage testing of lithium-ion battery management systems (BMS) per UN 38.3 T.4
- Reliability screening of solder joints, conformal coatings, and underfill materials under inert conditions
- Outgassing studies for space-grade electronics requiring ultra-low oxygen environments
- Process validation of reflow-compatible adhesives and encapsulants prior to volume production
- Long-duration burn-in of optoelectronic modules (VCSELs, photodiodes) where oxidation-induced drift must be eliminated
FAQ
What nitrogen purity is required to achieve ≤1.0 % v/v O₂ inside the chamber?
Industrial-grade nitrogen (≥99.5 % purity, dew point ≤−40 °C) is sufficient when used with the dual-flow meter configuration and proper purge sequencing.
Can the aging power supply operate independently of the thermal cycle?
Yes—the 50 V DC output is electrically isolated and can be enabled/disabled via touchscreen or digital I/O, allowing bias application before heating or during cooldown.
Is the chamber suitable for vacuum operation?
No—the YL-AO-300 is designed exclusively for positive-pressure inert gas environments; it lacks vacuum-rated seals or structural reinforcement.
How is temperature uniformity validated across the working volume?
Per ASTM E2207, uniformity is verified using nine calibrated Class A PT100 probes placed at standardized locations; full mapping reports are included with factory calibration certificate.
Does the system support remote monitoring via cloud platform?
Not natively—but the Modbus TCP interface allows connection to third-party IIoT gateways (e.g., Siemens Desigo, Ignition SCADA) for cloud telemetry and alerting.
