LIB Industry
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LIB's NSS ASS CASS Mist Corrosion Salt Spray Test Machine is available in multiple capacities ranging from compact laboratory units to large-volume chambers exceeding 1600 L, making it suitable for both R&D testing and production-level quality verification. The chamber interior is manufactured from corrosion-resistant materials designed for continuous exposure to 5 % NaCl solutions under high humidity and elevated temperature. An inverted-V transparent lid prevents condensate from dripping onto specimens, protecting test integrity and reducing result variability.
Performance Advantages
1. Stable and Uniform Salt Fog Generation: the salt spray system operates at a constant spray pressure of 83 kPa, producing a controlled salt fog deposition rate of 1–2 mL/80 cm²/h, fully compliant with ISO 9227 and ASTM B117. Precision atomization nozzles combined with a preheated saturated air barrel ensure uniform fog distribution throughout the chamber. This consistent salt mist coverage minimizes position-related variation, allowing all test specimens to experience the same corrosion stress and significantly improving test repeatability and result reliability.
2. High Accuracy Temperature and pH Control: the chamber maintains a standard test temperature of 35 ± 2 °C, with temperature fluctuation controlled within ±0.5 °C during continuous operation. High-precision PT-100 Class A sensors with a resolution of 0.001 °C provide real-time monitoring and accurate feedback. The system supports precise salt solution pH control of 6.5–7.2 for NSS and 3.1–3.3 for ASS/CASS, ensuring strict compliance with international corrosion test specifications and stable test conditions over long durations.
3. Flexible Sample Loading and Wide Capacity Range: LIB salt spray chambers are available in multiple internal volumes ranging from approximately 110 L to 1600 L and above, supporting both laboratory R&D testing and highthroughput production validation. Standard V-groove and round-rod sample holders allow adjustable specimen angles from 15° to 30°, enabling simultaneous testing of panels, fasteners, and complex components without shielding effects. This flexibility allows users to test a wide variety of sample sizes and shapes within a single system.
4. Durable Construction for Long-Term Testing: the chamber interior is manufactured from corrosion-resistant materials designed for continuous exposure to 5 % NaCl solution, high humidity (95–98 % RH), and elevated temperature. The inverted-V transparent lid effectively prevents condensate from dripping onto specimens, preserving test validity. This robust construction supports hundreds to thousands of continuous operating hours, reducing maintenance frequency and extending the overall service life of the equipment.
5. Intelligent Control and Safety Protection: the programmable PID controller supports up to 120 programs with 100 steps per program, allowing continuous or cyclic salt spray testing. Automated water replenishment and dry-burn protection stop the system when water levels fall below safe limits, protecting heaters and key components. Additional safety features include over-temperature protection, over-current protection, water shortage alarms, and earth leakage protection, ensuring safe, stable, and unattended long-term operation.
6. Easy Maintenance and Global Support: smooth interior surfaces and accessible spray components simplify routine cleaning and reduce downtime between tests. LIB provides a 3-year warranty, lifetime technical support, and a global service network with critical spare parts delivered within 7–15 days. This comprehensive support system ensures long-term reliability, low operating cost, and peace of mind for users worldwide.
Main Parameters
| Model | S-150 | S-250 | S-750 | S-010 | S-016 | S-020 |
| Internal dimensions (mm) | 590*470*400 | 1000*640*500 | 1100*750*500 | 1000*1300*600 | 900*1600*720 | 1000*2000*800 |
| Overall dimensions (mm) | 1460*760*1140 | 1850*960*1350 | 1950*1030*1350 | 2000×1300×1600 | 2300×1300×1700 | 2700×1300×1900 |
| Interior Volume (L) | 110 | 320 | 410 | 780 | 1030 | 1600 |
| Temperature Range | Ambient ～ +60 ℃ | |||||
| Temperature Fluctuation | ± 0.5 ℃ | |||||
| Temperature Deviation | ± 2.0 ℃ | |||||
| Humidity Range | 95% ~ 98% RH | |||||
| Salt Fog Deposition | 1～2ml / 80cm2 · h | |||||
| Spray Type | Continuous / Periodic | |||||
| Salt Fog Collected | Fog collector and fog measure cylinder | |||||
| Air Preheating | Saturated air barrel | |||||
| Spraying System | Atomizer tower and Spray nozzles | |||||
| Controller | PID controller | |||||
| Safety Device | Humidifier Dry-combustion Protection; Over-temperature Protection; Over-current Protection; Water Shortage Protection; Earth leakage Protection | |||||
| Material | Glass fiber reinforced plastics | |||||
| Standard Configuration | 6 round bars and 5 V-shaped grooves | |||||
Typical Tests
The NSS ASS CASS Mist Corrosion Salt Spray Test Machine is designed for a wide range of corrosion testing of metals, coatings, fasteners, and surface-treated components. It performs Neutral Salt Spray (NSS) tests using 5 % NaCl solution at pH 6.5–7.2 and 35 ± 2 °C with a deposition rate of 1–2 mL/80 cm²/h, revealing early corrosion patterns in 24–48 h. Acetic Acid Salt Spray (ASS/AASS) tests with pH 3.1–3.3 accelerate corrosion on decorative and electroplated coatings, simulating several years of outdoor exposure within 72–96 h. For harsher environments, Copper-Accelerated Acetic Acid Salt Spray (CASS) tests add 0.26 g/L CuCl₂, running at 35 ± 2 °C for 24–96 h, providing fast evaluation of high-performance coatings. The chamber also supports cyclic corrosion tests combining wet salt fog and drying phases, such as 8 h fog at 35 °C followed by 16 h drying at 50 °C, over 10–20 cycles to simulate real-world alternating conditions. High-temperature corrosion aging can be performed at 60–80 °C and 95 % RH under continuous fog for 48–72 h. Multiple specimens, including fasteners, panels, and small components, can be tested simultaneously, while continuous monitoring of temperature, spray deposition, and solution pH ensures reliable, repeatable, and traceable results across all testing scenarios.
Video
FAQs
Q 1: What controller types are available for this salt spray test machine?
Smaller models such as S-150, S-250, and S-750 are equipped with button-type PID controllers as standard, with touchscreen controllers available as an option. Larger models including S-010, S-016, and S-020 come standard with full touchscreen control.
Q 2: What routine maintenance is required?
Routine maintenance includes cleaning spray nozzles and the test chamber to prevent salt crystallization, periodically replacing water in the saturated air barrel, and keeping electrical components free from dust to ensure safe and stable operation.
Q 3: What air supply is required?
All models use a standard air supply of 40 L capacity at 0.8 MPa. Using a larger air source is recommended to reduce operating noise and improve long-term stability.
LIB's NSS ASS CASS Mist Corrosion Salt Spray Test Machine is available in multiple capacities ranging from compact laboratory units to large-volume chambers exceeding 1600 L, making it suitable for both R&D testing and production-level quality verification. The chamber interior is manufactured from corrosion-resistant materials designed for continuous exposure to 5 % NaCl solutions under high humidity and elevated temperature. An inverted-V transparent lid prevents condensate from dripping onto specimens, protecting test integrity and reducing result variability.
Performance Advantages
1. Stable and Uniform Salt Fog Generation: the salt spray system operates at a constant spray pressure of 83 kPa, producing a controlled salt fog deposition rate of 1–2 mL/80 cm²/h, fully compliant with ISO 9227 and ASTM B117. Precision atomization nozzles combined with a preheated saturated air barrel ensure uniform fog distribution throughout the chamber. This consistent salt mist coverage minimizes position-related variation, allowing all test specimens to experience the same corrosion stress and significantly improving test repeatability and result reliability.
2. High Accuracy Temperature and pH Control: the chamber maintains a standard test temperature of 35 ± 2 °C, with temperature fluctuation controlled within ±0.5 °C during continuous operation. High-precision PT-100 Class A sensors with a resolution of 0.001 °C provide real-time monitoring and accurate feedback. The system supports precise salt solution pH control of 6.5–7.2 for NSS and 3.1–3.3 for ASS/CASS, ensuring strict compliance with international corrosion test specifications and stable test conditions over long durations.
3. Flexible Sample Loading and Wide Capacity Range: LIB salt spray chambers are available in multiple internal volumes ranging from approximately 110 L to 1600 L and above, supporting both laboratory R&D testing and highthroughput production validation. Standard V-groove and round-rod sample holders allow adjustable specimen angles from 15° to 30°, enabling simultaneous testing of panels, fasteners, and complex components without shielding effects. This flexibility allows users to test a wide variety of sample sizes and shapes within a single system.
4. Durable Construction for Long-Term Testing: the chamber interior is manufactured from corrosion-resistant materials designed for continuous exposure to 5 % NaCl solution, high humidity (95–98 % RH), and elevated temperature. The inverted-V transparent lid effectively prevents condensate from dripping onto specimens, preserving test validity. This robust construction supports hundreds to thousands of continuous operating hours, reducing maintenance frequency and extending the overall service life of the equipment.
5. Intelligent Control and Safety Protection: the programmable PID controller supports up to 120 programs with 100 steps per program, allowing continuous or cyclic salt spray testing. Automated water replenishment and dry-burn protection stop the system when water levels fall below safe limits, protecting heaters and key components. Additional safety features include over-temperature protection, over-current protection, water shortage alarms, and earth leakage protection, ensuring safe, stable, and unattended long-term operation.
6. Easy Maintenance and Global Support: smooth interior surfaces and accessible spray components simplify routine cleaning and reduce downtime between tests. LIB provides a 3-year warranty, lifetime technical support, and a global service network with critical spare parts delivered within 7–15 days. This comprehensive support system ensures long-term reliability, low operating cost, and peace of mind for users worldwide.
Main Parameters
| Model | S-150 | S-250 | S-750 | S-010 | S-016 | S-020 |
| Internal dimensions (mm) | 590*470*400 | 1000*640*500 | 1100*750*500 | 1000*1300*600 | 900*1600*720 | 1000*2000*800 |
| Overall dimensions (mm) | 1460*760*1140 | 1850*960*1350 | 1950*1030*1350 | 2000×1300×1600 | 2300×1300×1700 | 2700×1300×1900 |
| Interior Volume (L) | 110 | 320 | 410 | 780 | 1030 | 1600 |
| Temperature Range | Ambient ～ +60 ℃ | |||||
| Temperature Fluctuation | ± 0.5 ℃ | |||||
| Temperature Deviation | ± 2.0 ℃ | |||||
| Humidity Range | 95% ~ 98% RH | |||||
| Salt Fog Deposition | 1～2ml / 80cm2 · h | |||||
| Spray Type | Continuous / Periodic | |||||
| Salt Fog Collected | Fog collector and fog measure cylinder | |||||
| Air Preheating | Saturated air barrel | |||||
| Spraying System | Atomizer tower and Spray nozzles | |||||
| Controller | PID controller | |||||
| Safety Device | Humidifier Dry-combustion Protection; Over-temperature Protection; Over-current Protection; Water Shortage Protection; Earth leakage Protection | |||||
| Material | Glass fiber reinforced plastics | |||||
| Standard Configuration | 6 round bars and 5 V-shaped grooves | |||||
Typical Tests
The NSS ASS CASS Mist Corrosion Salt Spray Test Machine is designed for a wide range of corrosion testing of metals, coatings, fasteners, and surface-treated components. It performs Neutral Salt Spray (NSS) tests using 5 % NaCl solution at pH 6.5–7.2 and 35 ± 2 °C with a deposition rate of 1–2 mL/80 cm²/h, revealing early corrosion patterns in 24–48 h. Acetic Acid Salt Spray (ASS/AASS) tests with pH 3.1–3.3 accelerate corrosion on decorative and electroplated coatings, simulating several years of outdoor exposure within 72–96 h. For harsher environments, Copper-Accelerated Acetic Acid Salt Spray (CASS) tests add 0.26 g/L CuCl₂, running at 35 ± 2 °C for 24–96 h, providing fast evaluation of high-performance coatings. The chamber also supports cyclic corrosion tests combining wet salt fog and drying phases, such as 8 h fog at 35 °C followed by 16 h drying at 50 °C, over 10–20 cycles to simulate real-world alternating conditions. High-temperature corrosion aging can be performed at 60–80 °C and 95 % RH under continuous fog for 48–72 h. Multiple specimens, including fasteners, panels, and small components, can be tested simultaneously, while continuous monitoring of temperature, spray deposition, and solution pH ensures reliable, repeatable, and traceable results across all testing scenarios.
Video
FAQs
Q 1: What controller types are available for this salt spray test machine?
Smaller models such as S-150, S-250, and S-750 are equipped with button-type PID controllers as standard, with touchscreen controllers available as an option. Larger models including S-010, S-016, and S-020 come standard with full touchscreen control.
Q 2: What routine maintenance is required?
Routine maintenance includes cleaning spray nozzles and the test chamber to prevent salt crystallization, periodically replacing water in the saturated air barrel, and keeping electrical components free from dust to ensure safe and stable operation.
Q 3: What air supply is required?
All models use a standard air supply of 40 L capacity at 0.8 MPa. Using a larger air source is recommended to reduce operating noise and improve long-term stability.
