OK-T Series High-Temperature Aging Test Chamber

Overview

The OK-T Series High-Temperature Aging Test Chamber is an engineered environmental test system designed for accelerated thermal aging evaluation of materials, components, and finished products under controlled elevated temperature conditions. Based on the principle of forced convection heating using high-efficiency far-infrared nickel-chromium heating elements and a precision-balanced horizontal airflow circulation system, it maintains stable thermal profiles across the working volume—critical for replicating long-term thermal stress in industrial, electronic, and automotive applications. The chamber operates within a wide temperature range from ambient +20 °C up to 500 °C, supporting both standard (RT–200 °C, RT–300 °C) and high-temperature (RT–500 °C) configurations. Its architecture conforms to the technical requirements of GB/T 2423.2—China’s national standard equivalent to IEC 60068-2-2—and provides traceable thermal performance suitable for laboratory-grade reliability testing, quality assurance validation, and pre-compliance screening prior to formal certification.

Key Features

• Robust dual-layer construction: inner chamber fabricated from seamless SUS304 stainless steel (mirror or brushed finish), outer shell formed from 1.2 mm A3 cold-rolled steel with electrostatic powder coating for corrosion resistance and structural integrity.
• High-efficiency thermal management: independently controlled heating circuit with 2 kW far-infrared alloy heaters; PID + SSR (Solid-State Relay) regulation ensures dynamic power modulation and energy-efficient operation.
• Precision temperature control: microprocessor-based controller with Pt100 platinum resistance thermometer input, delivering ±0.5 °C setpoint accuracy and ±1.5 °C uniformity across the full working volume.
• Forced horizontal air circulation: high-temperature-rated centrifugal blower (SUS304 impeller, ceramic bearing) integrated into a calibrated duct system to minimize thermal gradients and ensure reproducible exposure conditions.
• Dual safety architecture: primary PID controller with secondary independent over-temperature limiter (mechanical or electronic), plus leakage current protection and automatic thermal shutdown at preset thresholds.
• User-centric ergonomics: large tempered glass observation window with double-layer low-emissivity seal; two-tier adjustable stainless steel shelves (SUS304 #304); rear-mounted AC220 V ±5% / 50 Hz power inlet.

Sample Compatibility & Compliance

The OK-T chamber accommodates a broad spectrum of sample types—including PCB assemblies, polymer encapsulants, elastomeric seals, battery cells, aerospace composites, and passive electronic components—without risk of contamination or cross-reactivity. Its inert stainless-steel interior and non-outgassing insulation (polyurethane + fiberglass) prevent volatile organic compound (VOC) emission during extended dwell cycles. The system supports standardized test protocols aligned with GB/T 2423.2 (identical in scope to IEC 60068-2-2 and ASTM D3045), making it suitable for use in GLP-compliant laboratories, ISO/IEC 17025-accredited testing facilities, and internal QA/QC departments requiring auditable thermal aging data. Optional calibration certificates (traceable to NIM or equivalent national metrology institutes) are available upon request.

Software & Data Management

While the base model features a standalone microprocessor controller with digital LED display, optional RS485/Modbus RTU interface enables integration with centralized lab data acquisition systems (e.g., LabVIEW, SCADA, or LIMS platforms). Real-time temperature logging, programmable ramp-soak profiles, and event-triggered alarms (e.g., deviation >1 °C for >30 s) can be configured via front-panel keys. For regulated environments, optional firmware upgrades support 21 CFR Part 11-compliant audit trails—including user login tracking, parameter change history, and electronic signature capability—when deployed with validated third-party software suites.

Applications

• Accelerated life testing of thermosetting resins, adhesives, and conformal coatings under sustained thermal load.
• Thermal stability assessment of lithium-ion battery separators and cathode materials at elevated temperatures.
• Pre-conditioning of sensors, connectors, and housings per automotive OEM specifications (e.g., GMW3172, Ford CETP).
• Validation of solder joint reliability and intermetallic growth kinetics in printed circuit board assemblies.
• Material degradation studies (oxidation, embrittlement, discoloration) in polymer science and packaging R&D.
• Stress screening of optoelectronic devices—including LEDs and laser diodes—prior to burn-in qualification.

FAQ

What is the maximum continuous operating temperature for the OK-T-150 model?

The OK-T-150 supports continuous operation up to 500 °C when equipped with the high-temperature configuration option; standard models are rated to 300 °C.

Can the chamber be customized for non-standard internal dimensions or voltage requirements?

Yes—custom internal volumes, door configurations (e.g., double-door, top-hinged), and electrical specifications (e.g., 380 V / 60 Hz) are available under OEM engineering support.

Does the system include validation documentation for IQ/OQ protocols?

Factory-assembled units ship with a basic Factory Acceptance Test (FAT) report; full Installation Qualification (IQ) and Operational Qualification (OQ) packages—including temperature mapping reports and sensor calibration certificates—are offered as value-added services.

Is the insulation material compliant with RoHS and REACH directives?

Yes—the rigid polyurethane foam and fiberglass insulation meet RoHS Annex II substance restrictions and carry REACH SVHC declaration compliance documentation.

How is temperature uniformity verified during manufacturing?

Each chamber undergoes 9-point temperature mapping (per IEC 60068-3-5) at three setpoints (100 °C, 250 °C, and 450 °C) using NIST-traceable Class A Pt100 probes; results are archived in the unit-specific test record.