Compound Salt Spray Test Chamber Manufacturer From China

  • 22 years of manufacturing & customizing compound salt spray test chamber

  • Simulate various environmental conditions, such as salt spray, humidity, and temperature
  • Offer customization options to tailor chambers according to your specific needs
  • Exclusive and original designs are available by our own designers

  • Supplier for many big-name companies, such as SGS. TUV, Intertek, TUV SUD. Bureau Veritas. UL Emerson Panasonic GP. Midea. GREE

  • Compound Salt Spray Test Chamber

Linkotest Compound Salt Spray Test Chamber

The Linkotest Compound Salt Spray Test Chamber is a crucial testing equipment used to study the environmental adaptability and reliability of various components, including automobiles. It plays a vital role in assessing the electrochemical corrosion resistance of metals subjected to severe environmental changes.

Our programmable compound salt spray testing chamber not only incorporates the fundamental features of a standard salt spray test chamber but also integrates the alternating cyclic salt spray test capabilities. This unique combination allows for the simulation of test environments that involve factors such as infatuated corrosion, filamentous corrosion, hot air drying, damp heat, and forced drying.

Compound Salt Spray Test Chamber Specification

Model JTCS-90 JTCS-120 JTCS-160 JTCS-200
Inside dimension(W x D x H) cm 90 x 60 x 50 120 x 80 x 50 160 x 100 x 50 200 x 120 x 60
Outside dimension(W x D x H) cm 141 x 88 x 128 190 x 110 x 140 230 x 130 x 140 270 x 150 x 150
Temperature & Humidity range 20℃, 10℃, RT ~80℃, 20~98%
External material Powder coated #304 Stainless Steel
Temperature range + 150℃~ – 70 ℃
Humidity range 5% ~ 98% R. H
Temperature resolution ℃ 0.01
Humidity resolution % R. H. 0.1
Temperature stability ℃ ±0.3
Humidity stability % R. H. ±2
Test room temperature Saltwater test(NSS ACSS): 35 ±1℃,  corrosion resistance test :50±1℃
Saltwater tank temperature Saltwater test(NSS ACSS): 35 ±1℃,  corrosion resistance test :50±1℃
Pressure barrel temperature Saltwater test(NSS ACSS): 35 ±1℃,  corrosion resistance test :50±1℃
Saltwater temperature Saltwater test(NSS ACSS):47 ±1℃,  corrosion resistance test :63±1℃
Liquid concentration 0.26% g for each addition of 5% sodium chloride solution or 5% sodium chloride solution
Air pressure 1.00 ±0.01kgf/cm²
Spray 1.0~2.0ml/80cm²/h
Potential of hydrogen  PH 6.5~7.2  3.0~3.2
Spray mode Continuous
Power Supply 220V 50Hz 15A 220V 50Hz 20A 220V 50Hz 25A 220V 50Hz 30 A

High Quality Compound Salt Spray Test Chamber

Linkotest provides high quality compound salt spray test chamber for salt spray humidity and heat alternating test, and also has the function of drying, which has been widely used and recognized in many automotive industries and auto parts companies.

Environmental Test Chamber Supplier

Compound Salt Spray Test Chamber Features

Linkotest provides high-quality compound salt spray test chambers for our clients in different industries.

  • Provide a comprehensive range of test environment
  • Offers precise control over test parameter
  • The alternating cyclic salt spray test function enhances the testing capabilities

  • Designed with strict adherence to quality control standards

Linkotest Compound Salt Spray Test Chamber After-Sales Service


We offer a comprehensive warranty on all our products. This warranty ensures that any manufacturing defects or malfunctions will be promptly addressed and resolved free of charge within the specified warranty period.

Technical Support

Our dedicated technical team is available to assist customers with any product-related issues. Whether it’s troubleshooting, installations, or general inquiries, our team is ready to provide prompt and efficient solutions.

Repair and Replacement

In the event that a product requires repair, we offer convenient repair services through authorized service centers. Our skilled technicians will diagnose and fix any issues, ensuring that the product performs optimally.

Spare Parts Availability

We maintain an inventory of commonly required spare parts to facilitate quick repairs. This helps minimize downtime, ensuring that our customers can continue using our products without significant interruptions.

Customer Feedback and Complaint Handling

We value our customers’ feedback and take complaints seriously. Our customer service team is committed to resolving any customer concerns promptly, ensuring their satisfaction with our products and services.

Product Upgrades and Enhancements

We continuously strive to improve the quality and features of our products. When applicable, we offer product upgrades or enhancements to provide our customers with the latest technology and improved functionality.

Training and Manuals

We provide comprehensive product training to our customers, ensuring that they fully understand the features and operation of our products. Additionally, we offer detailed instruction manuals and documentation to assist customers in using our products effectively.

Extended Support Contracts

For customers who require additional support beyond the standard warranty period, we offer extended support contracts. These contracts provide continued access to technical support, repairs, and other services, offering peace of mind and additional value.

Steps To Order Compound Salt Spray Test Chamber


Choose the types of compound salt spray test chamber based on the necessary function, and then the right model based on the test specifications.


Prepare a comprehensive quotation based on the customer’s requirements, including the cost, delivery details, and any additional services or customization requested.

Contract Execution

Engage in negotiation with the customer to finalize the terms of the order, including pricing, payment terms, and delivery schedule. Once all details are agreed upon, obtain the customer’s confirmation to proceed with the order.

Producing Schedule

Ensure that the equipment is manufactured to the highest quality standards. Conduct rigorous quality control checks and inspections at every stage of the production process to guarantee the system’s reliability and accuracy.


Coordinate with the customer to arrange the shipment. Provide regular updates on the shipping status, including tracking information, to keep the customer informed about the progress of their order.


Offer installation services and provide on-site training to the customer’s staff upon delivery. Ensure that the customer understands how to operate and maintain the system properly.

Compound Salt Spray Test Chamber Supplier FAQ

Yes, as a leading supplier of compound salt spray test chambers, we can provide you with comprehensive information about our product specifications and features. Our chambers have programmable capabilities, alternating cyclic salt spray test function, and the ability to simulate various environmental conditions. We can share technical data sheets and provide detailed explanations to help you understand the capabilities of our chambers.

The delivery time for our compound salt spray test chambers may vary depending on factors such as the quantity ordered and customization requirements. As a general guideline, we strive to deliver our chambers within [insert estimated delivery time]. However, we recommend contacting our sales team for an accurate delivery schedule based on your specific requirements.

Yes, we offer installation and training services for our compound salt spray test chambers. Our team of experienced technicians will ensure proper installation and provide comprehensive training on how to operate and maintain the chambers. We believe in establishing long-term relationships with our customers and strive to provide excellent after-sales support.

We provide a one year warranty on our compound salt spray test chambers. This warranty covers any manufacturing defects or malfunctions that may occur during normal use. Our chambers are built with high-quality materials and undergo rigorous quality control checks to ensure durability and reliability. In the unlikely event of any issues, our dedicated support team will assist you in resolving them promptly.

Yes, we understand that different industries may have unique testing needs. We offer customization options for our compound salt spray test chambers to meet your specific requirements. Whether it’s modifying chamber dimensions, integrating additional features, or incorporating specific testing parameters, our engineering team will work closely with you to deliver a tailored solution.

The cost of our compound salt spray test chambers depends on various factors such as the chamber size, features, customization requirements, and additional accessories. We offer competitive pricing while ensuring the highest quality standards. To receive a detailed quotation, please contact our sales team with your specific needs, and we will provide you with a comprehensive pricing proposal.

Compound Salt Spray Test Chamber Supplier
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Compound Salt Spray Test Chamber FAQ Guide

All your questions about the compound salt spray test chamber are answered in today’s guide. Whether you want to learn about definitions, functions, features, or applications, you can find everything here. Read on to learn more.

The compound salt spray test chamber is mainly used for auto parts, aviation equipment, photographic devices, building materials, electroformed coatings, electronic motor systems, and other metals under harsh environmental changes in electrochemical corrosion resistance.

According to the survey, the corrosion of metal materials mostly occurs in the atmosphere. The atmosphere contains oxygen, humidity, temperature changes, pollutants, and other corrosive components and corrosion factors. However, the corrosion of metal salts by salt spray is mainly due to the electrochemical reaction of the conductive salt solution entering the metal. Thus, a micro-battery system of “low potential metal electrolyte solution – high potential impurity” is formed. Finally, electron transfer occurs and the metal dissolves as an anode.

In fact, the main action of the composite salt spray corrosion process is chloride ions. Because it has a strong penetrating force, it is easy to penetrate the metal oxide layer into the metal and destroy the passivation state of the metal. At the same time, the hydration energy of chlorine is low. It is easily adsorbed on the metal surface and replaces oxygen in the oxide layer. To protect the metal from damage.

Moreover, the compound salt spray test chamber has the functions of the basic composite salt spray test chamber. Combined with the function of alternating cycle salt spray test, it can provide a test environment such as forced corrosion and filamentary corrosion. Such as hot air drying, hot wet drying, and forced drying.

Linkotest designs and manufactures environment test chambers including temperature humidity chambers, walk-in test chambers, thermal shock test chambers, fast change rate test chambers, agree-on chambers, xenon arc test chambers, uv test chambers, accelerated aging test chambers, rain & spray test chamber, salt spray test chamber, compound salt spray test chamber, laboratory oven, and other products to meet your different environmental test needs.

It doesn’t take much evidence to understand how corrosion can negatively impact our lives. And it goes beyond the outdated view of rust.

In general, climate drivers are well aware of the importance of corrosion-resistant materials. Salt buildup on winter roads wreaks havoc on the landing gear of cars, especially those known as “eggbeaters” or “clunky” cars. Ultimately, corrosion poses a threat to the safety of drivers and everyone else on the road.

Additionally, just as automobile companies focus part of their research efforts on the development of corrosion-resistant components. Municipalities are also looking at the roads themselves. In fact, the combination of salt and water corrodes asphalt and concrete, and sometimes just below the surface.

Potholes followed. It is understood that the researchers are working to solve this problem by developing water-resistant and salt-resistant pavement solutions.

There is also a very real public health problem. A 2019 report by the National Society of Corrosion Engineers estimated that the direct cost of corrosion of drinking water and sewer systems in the United States is $80 billion. If this problem is not addressed, contaminated water will pose a threat to citizens across the country.

Compound Salt Spray Test Chamber

  • Equipped with a spray adjuster for easy adjustment of spray density.
  • A heater is installed at the bottom of the test chamber to heat the water and maintain the temperature.
  • Equipped with a sealed sink to avoid spray leakage, the principle of water sealing is adopted.
  • The inner shell of the salt spray test chamber is made of PVC material, which effectively prevents corrosion.
  • The test cover is clear and easier to observe the test conditions.
  • Low load thresholds for loading and unloading.
  • Large capacity floor-standing salt solution reservoir.
  • Calibration certificate.
  • Canopy color selection.
  • One set of sample holders.
  • Interior picture windows.
  • Consumable spare parts kit.
  • Easy-to-access salt mist nebulizer made of transparent, wear-resistant acrylic.
  • Purges the cabinet interior with fresh air after testing and before opening the chamber.
  • Additional features for a premium salt spray chamber:
  • Touch screen, full-color user control interface, the latest version of our highly intuitive operating software, easy to program and use.
  • The operating software has a very large capacity and can be used to create complex multi-step test programs, so it can accommodate the widest possible test profile.
  • The icon-based control interface provides several built-in languages for ease of understanding and use.

Although it is called salt spray test and salt spray test chamber, the name is somewhat misleading. Because the spray usually comes in the form of fog or ultra-fine fog. This creates an environment that accelerates corrosion. In fact, this condition can also be isolated by controlling the ambient temperature at 95°F(35°C) and PH.

Salt spray testing is used to determine the corrosion resistance of a material. These typically include the following:

  • Phosphating the surface followed by paint, primer, varnish, or anti-rust treatment
  • Galvanized and zinc alloys
  • Electroplated chrome, nickel, copper, and tin
  • Coatings that are not electrolyzed, such as zinc sheet coatings
  • Organic coatings
  • Paints and coatings

Compound Salt Spray Test Chamber

Here are the installation steps for the compound salt spray test chamber.

1) Open the packaging of the compound salt spray test chamber

  • Be careful when opening the package. While the transparent sheets used in the compound salt spray chambers, which are usually made of fluorite, are fairly durable, the transport may be rough enough to cause damage. Be sure to check the salt spray chamber for cracks that may occur during transportation.
  • If you notice cracks or debris in fluorite, contact your manufacturer immediately. Just like a car windshield, cracks widen over time.
  • Find a hard, flat surface with plenty of ventilation to be a resting place for the salt spray chamber.
  • You want to have plenty of space around the room in a well-ventilated room. (See below for more information on ventilation.)

2) Electricity and utility requirements

Electrical panels and chambers are fully wired and ready for use. Keep in mind that in most cases, the power supply must be grounded.

You also need a reliable source of water. It is worth noting that the salt spray chamber requires distilled (demonstrated) water. Before putting untreated tap water into the chamber, you always want to feed it through a desalination filter.

Although the amount of water consumed in the tank varies by model. But here’s a little formula to help determine the capacity of the desalination cylinder:1600 TDS / 17.12 ppm = capacity (gallons). When three-quarters of the particle has turned into the color it used, you should replace the cartridge.

3) Salt spray nozzle assembly

The compound salt spray chamber is equipped with atomizing nozzle. But if you need to replace it, you may need to do the following:

  • Apply a quarter-inch-wide Teflon tape strip to all joints. Avoid letting the tape get inside the pipe.
  • It is best to place the tape at least two to three lines from the end of the pipe.
  • While preventing any foreign objects from entering the pipe, screw the acrylic quarter-inch fitting into the tape hole inside the chamber. You should be able to easily tighten it by hand.
  • After tightening by hand, adjust the nozzle so that the spray faces the front of the chamber, while another tape hole in the nozzle points downwards.
  • Tighten the long acrylic quarter-inch threaded tube into the tape hole at the bottom of the nozzle until it fits snugly. (This tube is called a siphon tube.)
  • Place the nylon mesh filter on the other end of the siphon and secure it in place with a rubber band. If using a special MIL-STD-202 or MIL-STD-810 filter, connect it to the end of the siphon.
  • Place the lid of the salt bank on top of the salt bank and you are done.

4) Salt spray chamber ventilation

What’s more, in order to prevent back pressure in the chamber, you have to exhaust it. When setting up the chamber, you are sure to install a non-corrosive three-inch pipe from the exhaust chamber to a point outside the building. The exhaust port should be short and straight. And gently slope down from the chamber to avoid any liquid traps. Finally, it should be shielded from wind or airflow.

What you need to know is that while flexible hoses are an option, you must ensure that the hose does not sag. If it sags, it creates a liquid trap. If your exhaust pipe is longer than 10 feet, a two-inch line should be used. If your pipe must exit from the roof up, use a T-joint instead of a bend. Adjust T so that an 18-inch drop line and drain can be added. Finally, ensure that the exhaust line is always clear.

5) Salt chamber for gas supply

Moreover, Compound salt spray chambers require clean, oil-free compressed air. A valve marked “air” is also installed at the rear end of the composite salt spray chamber. Compressed air flow SCFM typically ranges from 1.5/0.71 (l/s) to 4.0/1.89. The pressure of the PSIG will run between 6-10, depending on the model.

Compound Salt Spray Test Chamber

First, here are some things to know about the construction of a typical compound salt spray chamber.

Test chamber structure

  • The compound salt spray chamber uses a double-walled structure that provides warm air circulation between the inner and outer walls. The blower and heater located in the base circulate hot air in a closed loop.
  • The thermostat is located in the test area of the chamber and is factory set to keep the temperature at plus or minus 95 degrees Fahrenheit.
  • The salt atmosphere is created through a nebulization nozzle, which uses compressed air to siphon the salt solution from the tank. Compressed air is first heated and saturated by bubbling hot water stored in a saturation tower.
  • By saturating the air at temperatures higher than the air temperature near the salt spray nozzle, a small amount of condensed moisture constantly purges the nozzle, reducing the tendency of salt solution crystallization and blockage. This ensures consistent conditions of the nozzles, providing a uniform atmosphere in the test chamber.
  • The salt solution should be prepared according to any test specifications you are trying to meet. Many standards require a 20% saline solution, which means that each gallon of distilled or desalinated water contains two pounds of sodium chloride per ounce.
  • The thermostat located in the chamber test area controls the internal temperature, keeping it at plus or minus 2 degrees Fahrenheit (35 degrees Celsius). The thermostat also controls the air heater mounted on the blower. This thermostat is factory-set and should not be adjusted in any way.
  • If you need to change the temperature, you can modify the thermostat by turning the adjustment screw. The screw rotates clockwise to reduce the temperature. Before making other adjustments, be sure to allow enough time for stabilization.

Compound Salt Spray Test Chamber

You should follow the following sequence of actions at the beginning of each test:

1. Make sure the chamber is on a horizontal surface.

2. Connect the ventilation ducts to make sure they are not restricted.

3. Fill the tower reservoir.

4. Fill the salt tank to within one inch of the top and replace the lid.

  • When filling the reservoir, the temperature of the solution should be 95 degrees Fahrenheit or less.

5. Fill the top cover groove and close.

  • The top cover of the chamber has a water seal to prevent salt spray from entering the room.
  • Fill the tank regularly with distilled or desalinated water.
  • It is important that the chamber is properly leveled to provide a satisfactory seal.

6. Connect the chamber’s compressed air supply.

  • Now it is suitable for you to double-check that the air is supplied at the correct pressure.

7. Open the chamber air valve.

8. Turn on the compressed air supply.

9. Select the valve in the salt spray position and place the tower switch in the open position.

1) Other notes

10. Place the circulation switch and chamber switch in the open position and check the following:

  • Air should bubble through the saturation tower.
  • The atomization nozzle should produce fine fog.
  • Air flowing through the exhaust line is required for better ventilation of the machine.
  • There should not be any air bubbling through the water seal around the lid.

11. After the chamber temperature is stable (about 30 minutes after the chamber indicator first starts to cycle on and off), check the chamber and tower temperature.

  • Observe the temperature of all heating zones to ensure that the maximum temperature specified in the manual is not exceeded.
  • Check the correct operation of the thermostat by observing the electrical panel indicator.
  • These lights should cycle when various temperatures approach their set value.

12. Check the normal operation of the salt spray nozzle.

13. The chamber is now ready for use!

  • At the end of the test, place the start switch in the purge position. Ensure that air enters the chamber directly and flows freely from the exhaust pipe. This is roughly all you need to know when installing, setting up, and operating a new salt spray chamber.

Compound Salt Spray Test Chamber

In fact, the critical relative humidity for metal corrosion is about 70%. When the relative humidity reaches or exceeds this critical humidity, the salt dissolves to form an electrolyte with good electrical conductivity.

Conversely, when the relative humidity decreases, the salt solution concentration increases. Until the crystallization salt is out, the corrosion rate decreases accordingly. When the temperature increases, the molecular movement intensifies and the salt spray corrosion rate is high.

The International Electrotechnical Commission pointed out that for every 10℃ increase in temperature, the corrosion rate is increased by 2 to 3 times, and the electrical conductivity of the electrolyte is increased by 10 to 20%. Therefore, for the neutral salt spray test, it is generally considered appropriate to choose a test temperature of 35℃.

When the concentration is less than 5%, the corrosion rate of steel, nickel, and brass increases with the increase of the concentration. On the other hand, when the concentration exceeds 5%, the corrosion rate of these metals decreases with the increase in the concentration.

This is because, in the low concentration range, the oxygen content increases with the salt concentration; When the salt concentration is increased to 5%. The oxygen content reaches relative saturation, and if the salt concentration continues to increase, the oxygen content decreases accordingly.

With the decrease in oxygen content, the depolarization ability of oxygen also decreases, that is, the corrosion effect is weakened. In short, for zinc, cadmium, copper, and other metals, the corrosion rate always increases with the increase of the concentration of the salt solution.

According to the observation, the salt spray sedimentation direction is close to the vertical direction. When the sample is placed horizontally, its projected area is the largest, and the sample surface is most affected by the salt spray, so the corrosion is the most severe.

The results show that when the steel plate is at a 45-degree Angle to the horizontal line, the weight loss is 250g per square meter. When the plane of the steel plate is parallel to the vertical line, the weight loss of corrosion is 140 grams per square meter. The GB/T 2423.17-93 standard stipulates that flat samples should be placed vertically at a 30-degree Angle.

Compound Salt Spray Test Chamber

Therefore, when we use the composite salt spray test chamber at the end of each test or test, the solution of the measuring cup should be emptied and washed in time. To avoid the salt solution crystallization accumulation, affect the settlement calculation.

When the machine is not used for a long time, you should drain the water in the saturated tank. During normal use, the water in the saturator should also be replaced normally within a certain period of time. When restarting the test, you should check all electrical systems.

1) Environmental requirements during use, salt spray test cases

  • The distance between the laboratory and the laboratory should be more than sixty centimeters.
  • The ambient temperature of the equipment should be kept stable between fifteen and thirty degrees Celsius.
  • Do not expose to sunlight or other strong light sources.
  • Avoid strong airflow. If it cannot be completely avoided, there should be no airflow directly to the box.
  • High concentrations of dust and corrosive substances are not allowed to enter the environment.
  • Voltage fluctuations are less than or equal to plus or minus 10%.
  • Air compressors for regular lubrication of test chambers.

2) When not in use for a long time, restart the machine for testing and check all electrical systems first

When you do not use the machine for a long time, you should restart the machine for testing. And check all electrical systems to ensure your safety.

3) Other precautions:

  • Use only parts from the manufacturer of the specific chamber.
  • Always connect the chamber to a grounded power source.
  • Always disconnect the chamber from all power sources before repairing it.
  • Do not expose the chamber to high concentrations of solvent. This can lead to cracking of the fluorite wall.
  • Do not dissolve salt in a salt bank tank with hot water. This can also lead to cracking of the fluorite wall.
  • Follow the recommended temperature outlined in the operating manual, which should always be kept next to the chamber.

What you need to know is that the compound salt spray test chamber has the ability to control humidity. And it is mainly used for salt spray wet heat alternating tests but also has a drying function. It has been widely used and recognized in many automobile industry and auto parts enterprises.

The most important thing is that the composite salt spray test chamber is one of the test equipment for “anti-moisture heat, anti-salt spray, and anti-mold” in the artificial climate environment. In addition, it is an important test equipment for the study of environmental adaptability and reliability of automobiles and other machinery. If the performance indicators are up to standard, they can be used for neutral salt spray tests and acetate spray tests.

  • Touch screen controller, complete recording of temperature and humidity test curves
  • Control mode: temperature, humidity, and temperature, and humidity programmable alternate control
  • The RS232 interface > test time adjustable
  • Unfinished tests can be continued after the power-off memory function is restored.