Salt Spray Tester

Salt water spray testing machine is mainly used to test the corrosion resistance of products or metal materials by using the artificial simulated salt spray environment conditions created by the salt spray testing machine equipment. As one of the "three prevention" (humid heat, salt spray, and microorganisms) testing equipment for artificial climate environment, it is an important testing equipment for studying the adaptability and reliability of various environments in industries such as machinery, defense industry, light industry electronics, and instrumentation.

product details

Technical Specifications

Model	TA-SS
	60	90		120		160
Lab temp	Salt water test 35℃±1℃，corrosion resistance test 50℃±1℃
Saturation bucket temp	Salt water test 47℃±1℃，corrosion resistance test 63℃±1℃
PH value	Salt water test 6.5~7.2，corrosion resistance test 3.0~3.2
Temp deviation	±2℃
Inner size（WHDcm）	60x40x45		90x50x60		120x50x100		160x50x100
Outer size（WHDcm）	113x107x63		146x128x91		190x140x120		224x150x160
Water tank capacity (L)	15		25		40		60
Spray amount (ml/h)	1.0~2.0
Mist removal method	Air compression
Protector	Water level controller, 3 status warning lights, 2 sets of over temperature protection switches
Standard accessories	One set of storage sticks, 500g bottles of NaCl reagent, one saline mixing bucket, one 80cm ² standard collection cup, one 50ml measuring cylinder, and one detailed operating manual

Test Modes & Standards

NSS: Neutral Salt Spray Test.

AASS: Acetic Acid Salt Spray Test.

Conformity Standards: ASTM B117, ISO 9227, JIS Z2371, DIN 50021

Hardware Highlights

1.Box material: Uses P.V.C or P.P sheets (acid and alkali resistant, anti-aging, high-temperature resistant).

2.Precision nozzle: Utilizes specially designed glass nozzles (no crystalline blockage, uniform spray diffusion).

3.Top cover design: V-shaped or arc-shaped top cover (prevents condensate water from dripping onto the test sample).

4.Sealing method: Water-sealed structure.

5.Heating method: Steam heating method, with fast heating and uniform distribution.

Application

Surface treatment: Electroplating, anodizing, coating spraying.

Automotive parts: Fasteners, lamp housings, wheels.

Electrical and electronic products: Circuit boards, enclosures, connectors.

Hardware accessories: Locks, faucets, kitchen and bathroom supplies.

Video display

FAQ

1.Can the salt spray testing machine conduct the cyclic corrosion test (CCT)?

If your purpose is merely to meet basic production compliance requirements or conduct simple metal coating quality inspections, the standard salt spray testing machine is the most cost-effective option available. However, if you are involved in automotive, aerospace or high-performance coating research and development and need to simulate the corrosive environment of alternating dry and wet conditions found in the real world, then a cyclic corrosion test chamber (CCT) is your ideal choice.
2.How to calibrate the salt spray deposition rate？

1. Tools for preparation:
Use a standard funnel with a diameter of 100mm (with a collection area of approximately 80cm²) and connect it to a graduated cylinder.
2. Placement:
Place at least two collectors in the box: one close to the nozzle and one far from the nozzle. Ensure there is no sample obstruction above and no condensate dripping from the top cover is collected.
3. Test duration:
Conduct continuous spray tests for at least 16 hours (minimum of no less than 8 hours) to obtain accurate average values.
4. Criteria for judgment:
The volume of salt solution collected per hour should be between 1.0 and 2.0 ml / 80cm² / h.
5. How to adjust:
If the sedimentation rate is too low: Lower the top of the spray tower (diffusion cone) or slightly increase the intake pressure.
If the sedimentation rate is too high: Raise the top of the spray tower (diffusion cone) or slightly decrease the intake pressure.
3.What are the differences between the salt used for testing and industrial salt?

1. Purity requirement: The standard salt spray test (such as ASTM B117) stipulates that the purity of sodium chloride (NaCl) must be ≥ 99.5%.
2. Issues with table salt: Contains iodine (which interferes with the chemical reaction and affects the test accuracy) and anti-caking agents (which can clog the nozzle).
3. Problems with common industrial salt: Contains heavy metal impurities (such as copper and nickel), which accelerate corrosion and cause the test results to deviate from the standard.
Conclusion: Chemical purity (AR grade) or higher-purity dedicated test salt must be used to ensure the authenticity and validity of the test data and to protect the nozzle of the equipment.