BenAng BA-YWP120 Salt Spray Test Chamber

Overview

The BenAng BA-YWP120 Salt Spray Test Chamber is a rigorously engineered environmental test system designed to replicate accelerated corrosive conditions found in marine, industrial, and coastal atmospheres. It operates on the principle of continuous or cyclic nebulization of a standardized sodium chloride (NaCl) solution—typically 5% w/w—into a controlled, temperature-regulated chamber environment. The resulting salt-laden aerosol simulates long-term exposure to saline mist, enabling quantitative evaluation of corrosion resistance for metallic substrates, coated surfaces, electroplated layers, and polymer-based protective systems. This chamber is not intended for real-time atmospheric monitoring but serves as a reproducible, standardized platform for comparative durability assessment under defined test conditions aligned with internationally recognized corrosion testing protocols.

Key Features

• Chamber construction using 6 mm thick German-sourced gray PVC plates—engineered for thermal stability, chemical inertness against NaCl solutions, and mechanical impact resistance.
• Integrated saturation air tank fabricated from 2 mm stainless steel with automatic water-level regulation, ensuring consistent air pre-heating and humidity conditioning prior to雾化.
• Conical chamber lid (120° apex angle) minimizes direct droplet impingement on test specimens, preserving test integrity and reducing measurement artifacts.
• Precision PYREX® glass spray nozzles (originally imported from Taiwan) deliver uniform fog distribution across the test zone; cone-type disperser allows fine-tuning of spray intensity and coverage pattern.
• Dual independent PID temperature control loops: one for chamber air (0–99.9 °C, ±0.1 °C resolution), another for saturated air tank (0–99.9 °C, ±0.1 °C resolution), both utilizing VT4810 controllers for stable thermal management.
• Two-stage pressure regulation system: primary regulator (2–2.5 kg/cm²) followed by secondary adjustable regulator (0–4.0 kg/cm²), enabling precise control of atomization pressure at 1.0 kg/cm² for compliant fog deposition rates.
• Standardized fog collection system includes an imported 80 cm² funnel collector and 50 mL graduated cylinder, facilitating verification of deposition rate (1–2 mL/h/80 cm²) per ASTM B117 and ISO 9227 requirements.

Sample Compatibility & Compliance

The BA-YWP120 accommodates flat-panel specimens up to 150 × 70 mm, mounted at either 15° or 30° angles via adjustable PVC racks—supporting up to 20 or 15 samples respectively. Its internal volume (600 L) and dimensional envelope permit evaluation of medium-scale components including printed circuit boards, automotive fasteners, connector housings, painted sheet metal, and galvanized brackets. The chamber meets the core technical criteria of GB/T 2423.17 (equivalent to IEC 60068-2-11), GB/T 10587-1989, and GJB 150.11A-2009. While not certified to ISO/IEC 17025, its design enables traceable execution of qualification tests required under QC/QA workflows in electronics manufacturing, aerospace subcontracting, and automotive Tier-1 supplier environments.

Software & Data Management

The BA-YWP120 employs discrete hardware-based controllers without embedded software or network connectivity. All operational parameters—including chamber temperature, saturation air temperature, elapsed test time (0–9999.9 h), and cycle mode—are displayed via dual-digit LED interfaces and managed through dedicated analog/digital modules (e.g., ANV AH5R-2 timer, RISESEN hour meter). Data logging requires external recording; however, the system supports GLP-aligned manual documentation practices through calibrated instrumentation (±0.1 °C sensors, 0.1 kg/cm² pressure gauges) and built-in audit-ready status indicators (three warning lamps, dual overtemperature cutouts, water-level alarm). For regulated environments requiring electronic records, integration with third-party data acquisition systems is feasible via analog voltage outputs or relay-status signals.

Applications

This chamber is routinely deployed in quality assurance laboratories for evaluating coating adhesion, plating integrity, passivation effectiveness, and base-metal corrosion kinetics. Typical use cases include: validation of zinc-nickel electroplating on brake calipers per SAE J2334; comparative assessment of powder-coated aluminum enclosures under cyclic salt fog per ISO 11997-2; screening of conformal coatings on PCBs per IPC-TM-650 2.6.17; and qualification of stainless steel grades used in marine instrumentation housings. It also supports failure analysis investigations where corrosion initiation sites must be isolated and correlated with microstructural features observed post-test via SEM/EDS.

FAQ

What standards does the BA-YWP120 comply with?
It is configured to meet the physical and operational requirements of GB/T 2423.17, GB/T 10587-1989, and GJB 150.11A-2009—Chinese national and military standards equivalent in scope to ASTM B117 and ISO 9227.
Can the chamber perform cyclic corrosion testing (CCT)?
No—the BA-YWP120 supports only static salt fog exposure (continuous or intermittent spray modes) and lacks programmable multi-phase cycling (e.g., dry/humid/salt phases) required for CCT protocols such as VDA 621-415 or GMW 14872.
Is the PYREX® spray nozzle replaceable, and are spares available?
Yes—the nozzle is a field-replaceable component; BenAng supplies OEM-compatible replacements with documented dimensional and flow-rate specifications.
Does the unit include calibration documentation?
It ships with a factory calibration certificate for temperature sensors and pressure gauges, along with a full set of technical schematics (electrical diagram, pneumatic layout, chamber assembly drawing) and multilingual operating instructions.
What maintenance intervals are recommended?
Daily visual inspection of water levels and nozzle condition; weekly cleaning of the saturation tank and collection funnel; quarterly verification of temperature uniformity using NIST-traceable thermocouples placed at nine designated chamber locations per ISO 9227 Annex B.