Salt Spray Corrosion Testing Machine

1. Basic Specifications
Power supply: Single-phase AC220V, total power 2KW, 50Hz

2. Product Application
This salt spray tester artificially simulates salt fog corrosive environment. Compared with outdoor natural exposure tests, it features controllable corrosion environment, excellent test repeatability and greatly shortened test cycle, which saves massive labor, cost and material resources.
It supports multiple test modes: neutral salt spray test (NSS), acetic acid salt spray test (AASS), copper accelerated acetic acid salt spray test (CASS) and alternating salt spray test.
By spraying saline or acidic saline solution under fixed temperature and humidity, the machine accelerates material corrosion, reproducing the corrosion damage degree of samples within a short period.
It is used to evaluate the salt fog corrosion resistance of raw materials and their protective coatings, compare surface treatment quality of different protective layers, and test the anti-corrosion performance of special industrial components.
It complies with national standards GB/T2423.17, GB/T2423.18, GB/T10125, GB/T10587 and international equivalent standards including IEC, MIL, DIN, ASTM.
3. Structural & Material Features
Cabinet Body
Inner and outer tank adopts 5mm thick imported German A-grade grey PVC material, high temperature, high humidity and strong corrosion resistance. Adopts 3D reinforced welding technology, solid and non-deformable, suitable for NSS, AASS, CASS all test types.

Hidden integrated liquid storage bottle for test chemical, easy disassembly for cleaning and simple operation.
Pressure Saturation Tank
Made of imported German A-grade grey PVC, tank-type exquisite structure, high temperature/pressure/corrosion resistant, never rust; solves stainless steel tank long-term rust failure problem.
Sample Rack inside Chamber
V-shaped support strips + 10mm carbon fiber O-shaped positioning rods, test angle adjustable 15°~30° freely; flat indexing sample holders, uniform fog coverage on all surfaces of samples, large sample placement capacity and accurate test results.
Transparent Top Cover
8mm thick imported high-toughness acrylic plate, 100° ridge design formed by physical bending. Condensed dew flows down the cover into water sealing groove to avoid dripping on test samples.
Fog Sealing Groove
Adopts eco-friendly water seal design to fully prevent salt fog leakage.
Spray Tower & Nozzle
Conical fog disperser with fog guiding, fog volume adjustment and uniform fog falling functions. Nozzle made of PYREX tempered glass, adjustable spray flow & spray angle, anti-crystallization blockage for continuous 10,000 hours operation.
Spraying System
Atomization follows Bernoulli principle, salt liquid atomization even without crystallization blockage. Spray volume adjustable within 1~2mL per hour (per 80cm² measuring area); embedded measuring cylinder, space-saving, easy observation.
Heating System
Direct heating design with fast temperature rise and short standby time, auto constant temperature after reaching set value, low power consumption. Pure titanium heating tube, acid & alkali resistant, ultra-long service life.
4. Control System Features
Core processor: Freescale 32-bit automotive high-speed processor, stable operation.
LCD digital display panel, human-friendly interface, all parameters clearly displayed.
Timer range: 0.1 second ~ 999999 hours, auto stop upon completion of test.
Dual control modes: fully automatic / manual mode switchable freely.
PID precise temperature control with calibration function, temperature control error ±0.5℃.
Pure silver contact relay, service life up to 5 million times.
Multiple safety protection: low water level alarm, dual over-temperature protection, power-off timing memory function; after power recovery, machine continues unfinished test according to original timing.
Auto/manual water replenishment, auto water refilling without test interruption when water insufficient.
Full digital circuit layout, imported high-quality electrical components, reasonable wiring, long service life.
Buzzer alarm will sound automatically once test cycle finished.
5. Test Technical Parameters & Air Supply System
Test Temperature Standard
NSS & AASS Test: Chamber temperature 35℃±1℃, saturation bucket temperature 47℃±1℃
CASS Copper Accelerated Test: Chamber temperature 50℃±1℃, saturation bucket temperature 63℃±1℃
Air Supply System
Two-stage air pressure adjustment:
First stage coarse adjustment: max 2kg/cm², equipped with imported drain air filter
Second stage precise adjustment: 1kg/cm², equipped with 1/4 high precision pressure gauge