Application Research of Dust Chamber Manufacturer in Dust Environment Performance Testing of Multi-field Products

Abstract​
In industries such as electrical and electronic products, automobiles, and motorcycles, products are often exposed to the erosion of dust environments. Dust intrusion may lead to product structure damage, functional failure, and even safety hazards. This paper takes the LISUN SC-015 Dust Chamber Manufacturer as the research object, and based on international and domestic standards such as IEC 60529 and GB/T 4208, systematically expounds the design principles, core technical parameters, and testing procedures of this equipment. It focuses on analyzing its specific applications in fields such as electrical and electronic products, lamps, electrical cabinets, electrical components, automobiles, and motorcycle parts. A test parameter comparison table for different products is constructed to intuitively present the test conditions, and practical test cases are used to verify the practicability of the equipment. The research shows that the LISUN SC-015 Dust Chamber Manufacturer can accurately simulate dust climate conditions with different concentrations and particle sizes. By detecting the physical properties and functional integrity of products after exposure to dust environments, it provides a scientific basis for product design optimization, quality verification, and factory inspection, effectively helping enterprises improve the reliability and adaptability of their products in dust environments.

1. Introduction​
With the continuous development of industrial production and the consumer market, the application scenarios of electrical and electronic products, automobiles, motorcycles, and other products have become increasingly complex. Environments with high dust concentrations such as deserts, mines, and construction sites have become common application scenarios. If dust particles intrude into the interior of products, they may cause problems such as mechanical part wear, circuit short circuits, and reduced heat dissipation efficiency, which seriously affect the service life and safety of products. To standardize the performance testing standards of products in dust environments, the International Electrotechnical Commission (IEC) and China’s National Standardization Administration have formulated standards such as IEC 60529 Degrees of protection provided by enclosures (IP Code) and GB/T 4208 Degrees of protection provided by enclosures (IP Code). These standards clearly require that relevant products must pass dust-proof tests of specific levels before they can be marketed.​

Against this background, professional dust chamber manufacturers have become core equipment for enterprises and testing institutions to conduct compliance testing. As a leading enterprise in the testing equipment field, LISUN Group has developed the SC-015 Dust Chamber Manufacturer, which strictly complies with international and domestic standards. It can flexibly adjust parameters such as dust concentration and test duration according to the characteristics of different products to achieve accurate simulation of dust environments. This paper will comprehensively analyze the value of the LISUN SC-015 Dust Chamber Manufacturer from the dimensions of the equipment’s design standards, technical performance, and application scenarios, providing practical references for dust environment performance testing of multi-field products.

2. Technical Principles of LISUN SC-015 Dust Chamber Manufacturer​
2.1 Core Technical Principles​
The LISUN SC-015 Dust Chamber Manufacturer adopts the “circulating dust injection” technology, and its core structure consists of a dust storage and transportation system, a test chamber, a dust concentration control system, a temperature control system, and a detection system. During the test, first, according to the standard requirements of the product to be tested, the control system is used to set the dust concentration (50g/m³-500g/m³), test duration (1h-1000h), and test chamber temperature (room temperature-60℃). Then, the standard dust (usually dry dust with SiO₂ content ≥99% and particle size ≤75μm) in the dust storage system is evenly delivered to the test chamber through the transportation device. At the same time, the fan is activated to make the dust form a suspended state in the test chamber, simulating a real dust environment. During the test, the detection system continuously monitors the dust concentration (error ≤±5%) and temperature (error ≤±2℃) in the test chamber to ensure stable test conditions. After the test, the dust-proof performance of the product is comprehensively evaluated by observing indicators such as whether there is dust intrusion into the product shell, whether internal components work normally, and whether mechanical parts are worn.​

The key technical highlight of the equipment lies in the “accurate control of dust concentration”: it uses a dual monitoring method of weighing and optical sensors to monitor dust concentration. When the concentration is lower than the set value, dust is automatically supplemented; when the concentration is higher than the set value, the filtering device is activated for adjustment. This ensures that the dust concentration in the test chamber is always maintained within the set range, avoiding test result deviations caused by concentration fluctuations.

3. Core Technical Parameters and Product Test Parameter Comparison Table of LISUN SC-015 Dust Chamber Manufacturer​
3.1 Core Technical Parameters​
The technical parameters of the LISUN SC-015 Dust Chamber Manufacturer directly determine its testing capability and application scope. The specific parameters are as follows:​
• Test chamber volume: 150L (internal dimensions: W500mm×H500mm×D600mm);​
• Dust concentration control range: 50g/m³ – 500g/m³ (higher concentrations can be customized according to requirements);​
• Dust particle size: ≤75μm (SiO₂ content ≥99%, meeting the requirements of ISO 12103-1 standard A2 dust);​
• Test chamber temperature range: Room temperature (RT) – 60℃ (temperature uniformity: ±2℃, fluctuation: ±1℃);​
• Test duration: 1h – 1000h (can be accurately controlled by a timer, supporting continuous testing);​
• Dust circulation method: Forced ventilation circulation (wind speed: 1m/s – 2m/s, ensuring uniform dust suspension);​
• Sample rack load capacity: ≤30kg (height adjustable to adapt to samples of different sizes);​
• Control system: Touchscreen operation, supporting parameter storage (can store 50 sets of test programs) and data export (supporting USB interface);​
• Safety protection: Equipped with over-temperature protection, dust blockage alarm, and overload protection functions to ensure safe operation of the equipment.​

3.2 Test Parameter Comparison Table for Different Field Products​
For different application scenarios of electrical and electronic products, lamps, electrical cabinets, electrical components, automobiles, and motorcycle parts, the LISUN SC-015 Dust Chamber Manufacturer needs to be matched with different test parameters. The specific comparison table is as follows:

Note: The parameters in the table can be adjusted according to the actual protection level requirements of the product. For example, when testing products with IP6X level (completely dust-proof), the dust concentration can be increased to 500g/m³ and the test duration extended to 100h to ensure that the product can still work normally in extreme dust environments.​

4. Application Scenarios and Practical Test Cases of LISUN SC-015 Dust Chamber Manufacturer​
4.1 Dust-proof Performance Testing of Electrical and Electronic Products​
Outdoor electrical and electronic products such as routers and switches are often installed in open-air environments and are vulnerable to dust erosion, leading to signal transmission interruptions. When using the LISUN SC-015 Dust Chamber Manufacturer for testing, parameters are set in accordance with GB/T 4208 standard: dust concentration 200g/m³, test duration 24h, test chamber temperature 40℃.​

Before the test, the router is connected to a power source and network, and fixed on the sample rack to ensure that the heat dissipation holes, interfaces, and other parts of the router face the dust circulation direction. During the test, the network connection status and temperature changes of the router are continuously observed through the monitoring software built into the equipment. After the test, the power supply is disconnected, the router is disassembled to check for internal dust intrusion, and then the power is turned on again to test the stability of signal transmission. When an electronic enterprise used this equipment to test a new type of outdoor router, it was found that a small amount of dust intruded into the router interface, causing occasional network interruptions. By adding a silicone sealing ring at the interface and optimizing the shell structure, the router fully met the standard requirements after re-testing, and the product’s dust-proof level was upgraded from IP54 to IP65.​

4.2 Dust-proof Performance Testing of Automotive Electronic Components​
Automotive electronic components such as car navigation systems and driving recorders are installed inside the car, but dust may still enter through door gaps and air conditioning ducts, affecting component functions. According to QC/T 413 standard, the LISUN SC-015 Dust Chamber Manufacturer is used with the following parameters: dust concentration 250g/m³, test duration 36h, test chamber temperature 60℃.​

Before the test, the car navigation system is fixed on a mounting rack simulating the car interior, and connected to a car power simulator to simulate the power supply state during normal driving. During the test, functions such as map navigation and music playback of the navigation system are activated every 6h to check whether they work normally. After the test, the surface dust of the navigation system is cleaned, and the touch sensitivity of the screen, sound output quality, and GPS signal strength are checked. When an automotive electronics enterprise tested a car navigation system, it was found that the touch function of the navigation screen occasionally failed in a high-temperature and dusty environment. After investigation, it was found that dust adhered to the internal touch panel of the screen. Later, by adding a dust-proof net between the screen and the shell, the problem was solved, and the product successfully passed the automobile manufacturer’s certification.​

4.3 Dust-proof Performance Testing of Motorcycle Engine Parts​
If dust enters motorcycle engine parts such as air filters and spark plugs, it will lead to increased engine wear and reduced power. In accordance with GB/T 10485-2007 standard, the LISUN SC-015 Dust Chamber Manufacturer is used with the following parameters: dust concentration 400g/m³, test duration 100h, room temperature.​

Before the test, the air filter is installed on an engine simulation test bench, and connected to equipment such as a fuel consumption meter and a power meter. During the test, the motorcycle’s driving state in a dust environment is simulated (speed cycling between 2000r/min and 6000r/min), and the engine’s power, fuel consumption, and exhaust temperature are continuously monitored. After the test, the air filter is disassembled to check the filtering effect, and at the same time, the engine cylinder wall and piston ring are checked for abnormal wear. When a motorcycle enterprise tested an air filter, it was found that the filtering efficiency was only 88%, which was lower than the standard requirement of 95%. By optimizing the filter paper material of the filter (replacing ordinary filter paper with high-efficiency composite filter paper), the filtering efficiency was increased to 97% after re-testing, meeting the engine’s usage requirements.​

5. Product Advantages and Usage Precautions of LISUN SC-015 Dust Chamber Manufacturer​
5.1 Product Advantages​
• Wide Application Range: It can meet the testing needs of products in multiple fields such as electrical and electronic products, lamps, automobiles, and motorcycles. Whether it is small electrical components (such as relays) or large electrical cabinets and engine parts, tests can be completed by adjusting the height of the sample rack and the space of the test chamber without replacing equipment;​
• High Testing Accuracy: The dust concentration control error is ≤±5%, and the temperature uniformity is ±2℃, ensuring that the test conditions are highly consistent with the real dust environment. The test results have good repeatability, and the error rate of multiple tests on the same product is ≤3%;​
• Convenient Operation and Maintenance: It adopts touchscreen visual operation and supports Chinese-English interface switching. New users can master basic operations within 15 minutes. The dust transportation pipeline of the equipment adopts a detachable design, which is easy to clean. Only one routine maintenance (replacing the dust filter cotton and cleaning the fan) is required per month, resulting in low maintenance costs;​
• Reliable Safety Performance: Equipped with multiple safety protection functions, it automatically cuts off the heating power supply in case of over-temperature, and issues an alarm and stops dust transportation in case of dust blockage, effectively avoiding equipment damage and safety accidents and ensuring the safety of operators.​

SC-015_Dustproof Test Chamber

5.2 Usage Precautions​
• Standard Dust Selection: A2 dust that meets the ISO 12103-1 standard (SiO₂ content ≥99%, particle size ≤75μm) must be used. Dust containing impurities and moisture is prohibited, otherwise, it will cause blockage of the dust transportation pipeline and sensor failure, and affect the accuracy of test results. It is recommended to dry each batch of dust before use (drying temperature 80℃, time 2h) to ensure that the dust moisture content is ≤0.5%;​
• Reasonable Sample Installation: Samples must be fixed in accordance with their normal use conditions to avoid dust accumulation in local areas due to inclined installation, which affects the fairness of the test. For example, when testing lamps, it is necessary to ensure that key parts such as the light source and heat dissipation holes of the lamps are not blocked, and dust can contact them evenly. At the same time, a distance of ≥100mm must be maintained between the sample and the test chamber wall to ensure smooth dust circulation;​
• Strict Parameter Setting: Parameters must be set according to the standards corresponding to the product and cannot be adjusted arbitrarily. For example, when testing products with IP65 level, the dust concentration cannot be lower than 200g/m³, and the test duration cannot be less than 24h, otherwise, the test intensity required by the standard cannot be achieved. If parameters need to be changed, the reason for the change, the parameter values before and after the change, and the tester’s information must be recorded for subsequent traceability;​
• Post-test Cleaning and Maintenance: After the test, the dust transportation system must be turned off first. After the dust in the test chamber settles (about 30min), the test chamber door is opened to take out the sample to avoid dust leakage and environmental pollution. At the same time, the inner wall of the test chamber, the dust transportation pipeline, and the sensor must be cleaned, and the dust filter cotton must be replaced to ensure stable performance of the equipment for the next use.

6. Conclusion
As professional testing equipment that complies with international and domestic standards, the LISUN SC-015 dust test chamber accurately simulates dust climate conditions, providing a reliable solution for dust resistance testing of products in a variety of fields, including electronics, lighting, automobiles, and motorcycles. Its wide dust concentration adjustment range, high test accuracy, and convenient operation not only meet the needs of companies for product design optimization, quality verification, and factory inspection, but also help companies meet market access standards in different countries and regions, enhancing the international competitiveness of their products.