Combined Salt Spray, Dry Heat & Humidity Cycling Test Chamber
| Key | Brand: Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 12,500 (FOB) |
| Temperature Range | RT to +80°C / 0°C to +80°C / −10°C to +80°C |
| Humidity Range | 20–98% RH |
| Temp. Control Accuracy | ±0.5°C |
| RH Control Accuracy | ±2.0% RH |
| Temp. Uniformity | ±2.0°C |
| RH Uniformity | ±3.0% RH |
| Salt Spray Temp. (NSS/ACSS) | 35±1°C |
| CASS Test Temp. | 50±1°C |
| Pressure Tank Temp. (NSS/ACSS) | 47±1°C |
| CASS Pressure Tank Temp. | 63±1°C |
| Salt Solution | 5% NaCl or 5% NaCl + 0.26 g/L CuCl₂·2H₂O |
| Compressed Air Pressure | 1.00±0.01 kgf/cm² |
| Fog Deposition Rate | 1.0–2.0 mL/80 cm²/h (avg. over ≥16 h) |
| Refrigeration System | Hermetic dual-stage compressor with R404A/R23 eco-refrigerants |
| Controller | 7″ color TFT touchscreen, bilingual (EN/CN), RS232 interface |
| Program Capacity | 140 patterns × 1400 steps, max. 99 repeats per segment, full-cycle repeat up to 999× |
| Power Supply | 220V±5% / 50±0.5 Hz or 380V±5% / 50±0.5 Hz AC |
Overview
The Combined Salt Spray, Dry Heat & Humidity Cycling Test Chamber is an engineered environmental simulation system designed to replicate and accelerate real-world corrosion mechanisms through precisely orchestrated sequences of salt fog exposure, high-temperature dry phases, and high-humidity condensation cycles. Unlike single-mode salt spray chambers governed solely by ASTM B117 or ISO 9227, this tri-combined chamber integrates thermodynamic, hygric, and electrochemical stressors in programmable temporal sequences—enabling evaluation of material degradation under conditions that closely mirror field service environments for automotive components, aerospace hardware, coated metallic substrates, and outdoor electronic enclosures. The chamber operates on a Couette-type air circulation principle with laminar flow distribution, ensuring uniform thermal and humidity gradients across the test volume. Its corrosion test modes comply with NSS (Neutral Salt Spray), ACSS (Acetic Acid Salt Spray), and CASS (Copper-Accelerated Acetic Acid Salt Spray) protocols as defined in ASTM G85 Annex A1–A5 and JIS Z2371.
Key Features
- Tri-stress integration: Simultaneous and sequential control of salt fog generation, temperature (−10°C to +80°C), and relative humidity (20–98% RH) within a single test volume.
- Programmable multi-phase cycling: Supports up to 140 independent test patterns, each containing up to 1400 discrete operational steps; individual segments support repeat counts from 1 to 999, enabling realistic duty-cycle emulation.
- Intelligent controller with data logging: 7-inch capacitive-touch TFT display with real-time graphical plotting of chamber temperature and humidity profiles; built-in non-volatile memory retains program state during power interruption (auto-resume function).
- Corrosion-specific fluid management: Dual-temperature pressure tank system maintains precise saturation temperatures (47°C for NSS/ACSS, 63°C for CASS) to ensure consistent fog droplet size distribution and deposition rate stability (1.0–2.0 mL/80 cm²/h, verified per ISO 9227).
- Low-noise dual-refrigeration architecture: Hermetically sealed two-stage compressor system using R404A (high-stage) and R23 (low-stage) refrigerants enables rapid transition between sub-zero cooling and high-humidity conditioning without thermal shock or condensate carryover.
- Modular chamber construction: Stainless steel 316L inner chamber with PTFE-coated nozzles and corrosion-resistant ductwork ensures long-term reliability and compliance with ISO/IEC 17025 calibration traceability requirements.
Sample Compatibility & Compliance
This chamber accommodates test specimens up to 120 × 80 × 50 cm (W×H×D) internal volume, supporting standard corrosion test panels (e.g., ASTM G101 reference coupons), functional assemblies (brake calipers, engine manifolds), and finished goods (smart meters, EV battery housings). It meets structural and operational requirements of ISO 16750-4 (road vehicles—environmental conditions), MIL-STD-810H Method 509.6 (salt fog), IEC 60068-2-52 (cyclic salt mist), and GB/T 2423.17–2008. All control algorithms and data logs are structured to support GLP/GMP audit readiness, including user access levels, electronic signature capability, and time-stamped event history compliant with FDA 21 CFR Part 11 when paired with validated software extensions.
Software & Data Management
The embedded controller firmware supports RS232 serial communication for external PC-based monitoring and remote parameter upload/download. Optional Ethernet-enabled gateway modules allow integration into centralized lab information management systems (LIMS) or MES platforms via Modbus TCP or OPC UA protocols. Logged data—including chamber setpoints, actual values, spray duration, and fault events—is exportable in CSV format with ISO 8601 timestamps. All measurement channels undergo factory calibration against NIST-traceable references, with certificate of calibration provided upon delivery. Firmware updates are performed via USB flash drive with cryptographic signature verification to maintain integrity.
Applications
- Automotive: Evaluation of galvanized steel fasteners, aluminum alloy chassis components, and e-coated body panels under cyclic coastal/marine exposure profiles.
- Aerospace: Qualification of titanium alloy landing gear fittings and composite-metal hybrid joints per SAE AMS 2700 and Boeing D6-17487.
- Electronics: Reliability screening of conformally coated PCBAs, IP67-rated connectors, and outdoor LED drivers subjected to combined thermal shock and chloride ingress.
- Construction: Corrosion resistance validation of stainless steel cladding anchors, zinc-aluminum-magnesium coated roofing sheets, and architectural aluminum extrusions tested per EN 1670.
- Energy: Long-term performance assessment of photovoltaic module frame alloys and offshore wind turbine nacelle housings under accelerated aging per IEC 61701 and ISO 20673.
FAQ
What standards does this chamber support for salt spray testing?
It fully complies with ASTM B117 (NSS), ASTM G85 Annex A1 (ACSS), Annex A3 (CASS), ISO 9227, JIS Z2371, and DIN 50021.
Can the chamber perform humidity-only or temperature-only cycles without salt spray?
Yes—each environmental parameter (temperature, humidity, salt fog) can be activated or suppressed independently within any program step.
Is the controller compatible with third-party LIMS or SCADA systems?
Standard RS232 interface is included; optional Ethernet expansion supports Modbus TCP and OPC UA for enterprise-level integration.
How is calibration traceability maintained?
Each unit ships with a NIST-traceable calibration certificate covering temperature, humidity, and spray deposition rate; annual recalibration services are available under ISO/IEC 17025 accreditation.
What safety certifications does the chamber hold?
CE marking per Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU; electrical design conforms to IEC 61000-6-2/6-4 for EMC immunity and emissions.
