Salt spray corrosion chamber - Understand the equipment and applications

The salt spray corrosion chamber is an efficient testing device, specifically designed to study the corrosion resistance of materials in a salt spray environment. This test chamber not only can simulate the real corrosion environment but also has a precise temperature and humidity control system to ensure the reliability of the test results. By using the salt spray corrosion test chamber, users can easily evaluate the performance of materials in harsh environments, effectively enhance the durability and safety of products, and ultimately achieve higher market competitiveness.

Key Features of the Salt Spray Corrosion Chamber：
Our salt spray corrosion test chamber has the following features, allowing you to easily conduct corrosion tests on various materials.

1、High-precision salt spray generation
Ensures uniform salt spray distribution, enhancing the accuracy of test results.

2、Intelligent control
Equipped with an intelligent control system, simplifying operation and improving test efficiency.

3、Durable materials
Made of high-quality materials, with a long service life, suitable for various testing environments.

4、Environmentally friendly
Designed with environmental protection in mind, reducing the impact of tests on the environment.

5、Suitable for multiple industries
Meets the testing requirements of multiple industries such as automotive, electronics, and aviation.

6、Flexible test specifications
Offers multiple functions and specifications to meet different standard requirements for testing.

Salt spray corrosion chamber Technical basis:
Operation settings are in accordance with the standard parameters of JIS, ASTM, CNS, and GB.
1、Salt spray test: NSS
Test chamber: 35℃ ± 1℃, pressure air tank: 47℃ ± 1℃.
2、Corrosion resistance test: CASS
Test chamber: 50℃ ± 1℃, pressure air tank: 63℃ ± 1℃.

Salt spray corrosion chamber Spray method:

1、The Bernoulli principle is used to draw salt water and then atomize it. The atomization is uniform and there is no clogging or crystallization phenomenon, ensuring continuous operation of the test.

2、The nozzle is made of tempered glass and can adjust the spray volume and spray angle.

3、The spray volume is adjustable from 1 to 2 ml/h (the standard requirement is to test for 16 hours and calculate the average value at a rate of ml/80cm2/h). The metering cylinder is installed in an embedded manner, with a neat and beautiful appearance, convenient for observation, and reducing the installation space of the instrument.

Salt spray test chamber body structure:

1、The box body is made of fiberglass reinforced plastic (FRP) through one-time molding, featuring resistance to acid and alkali, corrosion, high temperature, and impact, as well as being easy to clean.

2、The salt spray machine box cover is designed in a conical shape with a 120° apex angle, which helps prevent the liquid droplets generated by the salt spray from directly dripping onto the test samples, ensuring the accuracy of the test samples.

3、The cover of the equipment box and the box body are provided with a water-sealing groove, which has good air tightness and is equipped with a water drainage device.

4、The bottom of the Φ studio is equipped with a water barrier ring, and there is an overflow outlet in the middle. This design not only maintains a certain water level to prevent the box from aging but also discharges the excess water outside the box.

5、The material of the box cover is made of transparent acrylic board with a thickness of 5mm. It is also corrosion-resistant, anti-aging and easy to clean.

Derui Environment Test Chamber has a material testing laboratory and equipment manufacturing base, achieving full-process control from R&D to production. The equipment has passed CNAS certification, and the test data is globally recognized.

Our products are exported to over 100 countries, providing reliable environmental simulation solutions for global customers.

Model	Studio size(DWH)mm	External dimensions(DWH)mm
DR-H304-108	450×600×400	780×1140×1050
DR-H304-270	600×900×500	960×1460×1150
DR-H304-412	750×1100×500	1100×1730×1240
DR-H304-663	850×1300×600	1230×2150×1410
DR-H304-816	850×1600×600	1230×2450×1460
DR-H304-1080	900×2000×600	1280×2850×1460

Parameter Category	Parameter Name	Value/Range	Unit
Temperature Range	Chamber Temperature	RT+5℃ to 55℃	℃
	Saturator Temperature	RT+10℃ to 70℃	℃
Temperature Accuracy	Temperature Uniformity	≤2℃	-
	Temperature Fluctuation	±0.5℃	℃
Salt Spray Performance	Salt Spray Deposition Rate	1～2ml/80 cm².h (16-hour average)	ml/(80cm²·h)
Air Supply Requirement	Compressed Air Pressure	2.00±0.01 (kg/cm²)	kg/cm²
Spray Control	Spray Mode	Continuous/Periodic (selectable)	-
Time Settings	Test Duration	1～9999 H/M/S (adjustable)	H/M/S
	Cycle Duration	1～99 H/M/S (adjustable)	H/M/S
Specimen Rack	Inclination Angle	15°, 30°	°
Test Standards	Test Methods	NSS, AASS, CASS	-

1、What is the testing principle of the salt spray test chamber?
It atomizes a solution containing 5% sodium chloride into acidic salt spray through compressed air to simulate a marine climate environment and test the corrosion resistance of materials.

2、 What are the commonly used testing standards for salt spray test chambers?
International standards such as ASTM B117, ISO 9227, and GB/T 10125.

3、What types of salt spray tests are there?
Neutral salt spray test (NSS), acetic acid salt spray test (AASS), and copper-accelerated acetic acid salt spray test (CASS).

4、What is the temperature range of the salt spray chamber?
A: The standard temperature range is 35℃ to 50℃. Some high-end models support low-temperature cycles (-20℃ to +80℃).

5、What is the standard salt spray deposition rate?
It is usually required to be 1 to 2 mL/80 cm²/h, which can be adjusted by the nozzle angle and air pressure.

6、 How is the concentration of the salt solution controlled?
An automatic mixing system maintains a NaCl concentration of 5% ± 0.1%. Some models support real-time pH monitoring.

7、How is the uniformity of the salt spray chamber ensured?
A multi-nozzle three-dimensional layout and air flow equalizing plate design are adopted to ensure that the salt spray distribution uniformity inside the chamber is ≥ 95%.

8、What is the corrosion-resistant material of the test chamber?
A: The chamber body is made of PVC reinforced plastic or acid and alkali resistant PP sheet, and the internal accessories are made of high-temperature resistant PP or PTFE.

9、How to prevent condensation water from affecting the test?
A dehumidification system and drainage device are equipped to ensure that the humidity inside the chamber is stable at 95% to 98%.

10、Besides salt spray chambers, what other products do you have?

As a professional manufacturer of environmental test chamber, Derui is committed to providing customers with comprehensive environmental simulation solutions. Its product line is rich and diverse, covering various types of test equipment. The products include temperature test chambers, thermal shock test chambers, walk-in test chambers, battery test chambers, salt spray chambers, aging test chambers, weather resistance test chambers, height test chambers, incubators and other products. If you have specific testing requirements, Derui can also carry out customized design and production according to your requirements to meet personalized needs.