LabCompanion LH Series High-Temperature Aging Test Chamber

Overview

The LabCompanion LH Series High-Temperature Aging Test Chamber is an engineered thermal aging system designed for accelerated evaluation of polymer, rubber, elastomer, and composite material degradation under controlled elevated temperature conditions. Based on the principle of Arrhenius kinetics, the chamber enables predictive assessment of long-term material stability by accelerating oxidative and thermo-oxidative aging processes—e.g., a 24-hour exposure at 70 °C approximates six months of ambient atmospheric aging for many vulcanized rubber formulations. The system integrates forced hot-air convection with a motor-driven rotating sample tray, ensuring uniform thermal exposure across all specimen surfaces while minimizing positional bias and thermal stratification. Its robust architecture meets the physical and operational requirements of standardized aging protocols defined in ASTM D2436 (Standard Test Method for Accelerated Aging of Adhesives), ASTM E145 (Standard Specification for Gravity-Convection and Forced-Ventilation Ovens), JIS K630 (Rubber—Testing—Aging Test), and JIS K7212 (Plastics—Determination of Thermal Oxidative Stability).

Key Features

• Forced-air convection system with adjustable axial fan and internal airflow baffles for ±0.5 °C temperature uniformity across working volume (per ASTM E145 Class II specification)
• Motor-driven rotating sample platform operating at 8–10 rpm, ensuring consistent thermal flux distribution to all mounted specimens
• Dual-wall insulated chamber construction with SUS304 stainless steel interior and aluminized steel exterior for thermal efficiency and corrosion resistance
• PID-based digital temperature controller with real-time setpoint tracking, ramp/soak programming, and over-temperature cut-off (independent mechanical safety limiter included)
• Configurable maximum operating temperature: standard 200 °C; optional upgrade to 300 °C with high-temp insulation and upgraded heating elements
• Compliance-ready design: supports GLP/GMP documentation workflows with optional data logging, audit trail, and 21 CFR Part 11–compliant software modules (available separately)

Sample Compatibility & Compliance

The LH Series accommodates standardized test specimens per ASTM D2436 (dumbbell or strip-shaped rubber/plastic samples), JIS K630 (circular or rectangular vulcanized rubber discs), and CNS 3556 (Taiwanese national standard for electrical insulating materials). Specimens are mounted on perforated aluminum trays or suspended via stainless steel hooks to maximize air exposure. The chamber’s thermal performance has been validated against ISO/IEC 17025–accredited calibration procedures, and its operational parameters align with the environmental conditioning requirements specified in IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), and USP for pharmaceutical excipient stability studies. All models include CE marking and comply with IEC 61000-6-2 (EMC immunity) and IEC 61000-6-4 (EMC emissions) standards.

Software & Data Management

While the base unit operates via standalone PID controller, LabCompanion offers optional PC-based monitoring software (LH-Link v3.2) for continuous temperature logging, remote parameter adjustment, and automated report generation in PDF/CSV formats. The software supports time-stamped event tagging (e.g., door opening, power interruption), configurable alarm thresholds, and export of raw data compatible with JMP, Minitab, and MATLAB. For regulated environments, the validated software package includes electronic signature capability, user access levels (admin/operator/auditor), and full 21 CFR Part 11 audit trail functionality—including record creation/modification timestamps, operator ID, and reason-for-change fields.

Applications

• Accelerated aging of automotive rubber seals, hoses, and NVH damping components per SAE J2236 and GMW15635
• Oxidative stability screening of thermoplastic elastomers (TPEs), polyolefins, and engineering resins prior to injection molding qualification
• Stability testing of cable jacketing materials (PVC, XLPE, TPU) under IEEE 1202 and UL 1581 Section 1060 requirements
• Pre-screening of adhesive bondline integrity for aerospace composites (per Boeing BMS 8-269 and Airbus AITM 1-0002)
• Pharmaceutical packaging component validation per ICH Q1A(R2) and USP , including HDPE/PP closures and blister foil laminates
• Quality control of industrial gaskets, conveyor belts, and sealing compounds in accordance with ISO 1431-1 (ozone resistance) preconditioning steps

FAQ

What standards does the LH Series specifically support for rubber aging?
The chamber is configured to meet the thermal uniformity, air velocity, and specimen rotation requirements of ASTM D2436, JIS K630, and JIS K7212. Calibration certificates confirm compliance with ASTM E145 Class II tolerances.
Can the chamber be used for non-rotating applications?
Yes—the rotation mechanism can be disengaged or removed; static aging mode is fully supported with identical temperature uniformity specifications.
Is external exhaust ducting required?
Not mandatory for standard operation, but recommended when testing volatile or off-gassing materials; optional top-mounted exhaust port (DN80) is available with damper control.
What maintenance intervals are recommended?
Fan belt inspection every 6 months; heater element resistance check annually; door gasket replacement every 24 months or as needed per visual wear assessment.
Does LabCompanion provide IQ/OQ documentation packages?
Yes—validated installation qualification (IQ) and operational qualification (OQ) protocols, executed by certified field engineers, are available as a turnkey service option.