HJ Test System Co.,Ltd
  • Industry Applications of Helium Testing Equipment and Selecting a Source Manufacturer
    Industry Applications of Helium Testing Equipment and Selecting a Source Manufacturer Sep 01, 2025
    In modern manufacturing, product airtightness and reliability testing have become paramount for quality control. This is particularly true in sectors such as automotive parts, new energy batteries, refrigeration equipment, heat exchangers, and household appliances, where even the slightest leak can result in significant economic losses and safety hazards. Among numerous testing technologies, helium testing equipment, with its high sensitivity, fast detection speed, and strong stability, has gradually become the industry's preferred choice. The following details the industry applications of helium testing equipment, the importance of selecting a source manufacturer, and recommends a trustworthy source manufacturer, HJ Test System.   I. Major Industry Applications of Helium Testing Equipment 1.Automotive Parts New energy vehicles and traditional fuel vehicles have extremely stringent airtightness requirements. Key components such as battery packs, condensers, compressors, and oil coolers must undergo rigorous helium leak testing to ensure vehicle safety and long-term stability. 2. Refrigeration and Air Conditioning Industry In refrigeration systems, leaks not only reduce equipment performance but also pose environmental risks. Helium testing equipment can help manufacturers quickly locate leaks during the production process, significantly reducing after-sales repair costs and enhancing brand reputation. 3. New Energy and Energy Storage Industry The sealing performance of lithium battery and hydrogen fuel cell casings directly impacts the safety of energy storage systems. Helium testing technology ensures that battery casings and valves remain reliable under high temperatures and pressures, meeting international safety standards. 4. Heat Exchanger and Home Appliance Industry Whether it's a plate heat exchanger, refrigerator, or water heater, the sealing performance of welds and pipe connections directly determines the product's lifespan. Helium testing can help manufacturers control quality at the source and avoid post-sales risks.   II. Why Choose a Source Manufacturer of Helium Testing Equipment? Faced with numerous suppliers, companies are most concerned about equipment quality, price, and after-sales service. Choosing a source manufacturer offers the following advantages: Technical Support: Source manufacturers possess independent R&D capabilities, ensuring equipment accuracy and stability. Customization: We can tailor testing solutions to meet customers' diverse process requirements. Better Cost: We avoid multiple layers of agency markups, resulting in more reasonable prices. Comprehensive after-sales service: We provide installation and commissioning, training, and remote support to ensure long-term, stable equipment operation.   III. HJ Test System: A Trusted Source As a leading source manufacturer of helium testing equipment, HJ Test System has many years of experience in airtightness testing. Its products are widely used in various industries, including automotive manufacturing, new energy, refrigeration, home appliances, and heat exchangers. Core Advantages: Complete product range: including helium testing systems for plate heat exchangers, helium leak detection equipment for automotive parts, and battery housing airtightness testing systems. Strong R&D capabilities: We independently master core technologies, resulting in highly sensitive equipment and high testing efficiency. Customized services: We provide standardized and customized testing solutions based on customer process requirements. Comprehensive after-sales service: We provide rapid response, equipment installation, operator training, and remote technical support. Application Cases: Automotive Industry Client: After a new energy vehicle manufacturer implemented HJ Test System's battery pack helium testing system, they saw an 18% increase in product qualification rate and a significant reduction in after-sales issues. Refrigeration Industry Customer: A large air conditioning company has saved over 2 million yuan in annual after-sales costs by adopting a helium leak detection system.   IV. FAQ Q1: What is the detection accuracy of helium detection equipment? A1: Helium detection equipment has a sensitivity of up to 10⁻⁷ mbar·L/s, capable of detecting extremely small leaks, far exceeding traditional detection methods.   Q2: What products are suitable for helium detection equipment? A2: It is suitable for a variety of industries, including automotive parts (battery packs, compressors, condensers), refrigeration equipment, plate heat exchangers, energy storage batteries, and home appliances.   Q3: Is the HJ Test System customizable? A3: Yes. HJ Test System can provide customized helium detection system solutions based on customer process parameters and testing standards.   Q4: Is the helium detection equipment complex to maintain? A4: The equipment is well-designed, routine maintenance is simple, and we provide comprehensive training and technical support, allowing customers to quickly get started.   Q5: Why choose HJ Test System, a source manufacturer? A5: We have become a long-term partner of many manufacturers due to our independent R&D and production capabilities, high product precision, reasonable costs, and comprehensive after-sales service.   As global manufacturing continues to improve quality standards, the application of helium testing equipment will become even more widespread. Choosing a professional source manufacturer not only ensures testing accuracy and efficiency, but also reduces production and after-sales costs. As an experienced source manufacturer of helium testing equipment in the industry, HJ Test System has become the preferred partner of many companies with its superior technical strength and comprehensive service system. If you are looking for high-performance helium testing equipment and a reliable source manufacturer, HJ Test System is undoubtedly the best and most trustworthy choice.
  • Addressing Common Issues in Natural Gas Cooker Performance Testing Equipment
    Addressing Common Issues in Natural Gas Cooker Performance Testing Equipment Aug 03, 2025
    Addressing Common Issues in Natural Gas Cooker Performance Testing Equipment Ensuring kitchen safety and efficiency starts with reliable performance testing. This guide explores frequent challenges with natural gas cooker testing equipment and actionable solutions.   1. Understanding Testing Equipment Natural gas cooker performance testers evaluate critical parameters: Combustion efficiency (gas-to-heat conversion rate) Flame stability (resistance to lift-off/flashback) Gas leakage (detection sensitivity: ≤0.1% concentration) Surface temperature distribution (infrared thermal mapping)Without precise testing, safety risks become invisible threats.   2. Why Testing is Non-Negotiable Key consequences of inadequate testing:⚠️ Critical Hazards Gas accumulation → Explosion risk Incomplete combustion → CO poisoning (>50ppm danger threshold) Flame failure → Unburned gas release 💡 Operational Benefits 30% longer appliance lifespan (ISO 23555-1 compliance) 15-25% reduced gas consumption Real-time fault diagnostics   3. Top Testing Challenges & Solutions Problem Solution Tool Requirement Inconsistent flame readings Calibrate with reference burners Automated flame analyzer Micro-leak undetection Use ultrasonic detectors 0.01 L/min sensitivity sensors False efficiency results Standardize test gas composition Wobbe index controller Overheating risks Thermal imaging during stress tests IR camera + data logger   4. Equipment Selection Checklist Certification: EN 437 / GB 16410 compliance Accuracy: ≤±1.5% measurement tolerance Connectivity: Bluetooth/WiFi for data export Maintenance: Self-diagnostic firmware Usability: Touchscreen interface with preset protocols   5. Optimal Testing Frequency Usage Level Test Interval Critical Tests Residential (Daily) Annual Leakage, CO emission, Ignition Commercial (High-use) Quarterly Full performance + safety audit Post-repair Immediate Pressure integrity + flame profile   Conclusion: Proactive Protection Regular performance testing isn’t optional—it’s your first defense against kitchen disasters. Invest in precision equipment, adhere to scheduled maintenance, and transform your kitchen into a truly safe haven.
  • Uncover the Mystery of Electric Water Heater Safety Compliance Tester and Its Applications
    Uncover the Mystery of Electric Water Heater Safety Compliance Tester and Its Applications Jun 13, 2025
    Explore the Function, Importance and Daily Applications of Electric Water Heater Safety Compliance Tester Electric Water Heater Safety Compliance Tester Basics Electric water heaters have become an indispensable household appliance in modern homes. However, have you ever considered the hidden safety risks behind this convenience? This is where the Electric Water Heater Safety Compliance Tester comes into play!   What is an Electric Water Heater Safety Compliance Tester? In short, an Electric Water Heater Safety Compliance Tester is a key device to meet various challenges. It ensures the safety, control, protection and reliability of the safety mechanism during the operation of the electric water heater.   How Electric Water Heater Safety Compliance Tester Works: These testers simulate different electrical environments to conduct a comprehensive evaluation of electric water heaters. They monitor parameters such as motor performance, voltage, temperature, current and load under various conditions to ensure their normal operation. For example, the tester applies a specific voltage to check for power failures to prevent leakage accidents.   Why choose an Electric Water Heater Safety Compliance Tester? Safety First: These testers are powered by a DC power supply, which can effectively prevent potential dangers. User-friendly operation: Features such as automatic signal conversion or line disconnection simplify adjustments, even for manual circuit adjustments. Efficient: Professional diagnosis quickly identifies problems without tedious manual inspections.   How to use an electric water heater safety compliance tester? Using this device is very simple, but requires some technical knowledge: Make sure the electric water heater is turned on. Start the tester and verify that the readings match the actual situation. In a few minutes, you can assess the safety status of your water heater - very convenient!   The importance of regular maintenance and testing: Although safety compliance testers can help detect potential problems, regular maintenance is still crucial. Regularly check the power cord and plug for wear, descale and keep them clean to ensure safe operation.   The electric water heater safety compliance tester is not just a diagnostic tool, but also a guardian of home safety. With the reasonable use of this device, we can reduce risks and enjoy a comfortable life. Remember: safety is no small matter. Protecting yourself and your family is everyone's responsibility!
  • What causes the outlet pressure to drop when the compressed air booster pump is started?
    What causes the outlet pressure to drop when the compressed air booster pump is started? May 14, 2025
    Compressed air booster pumps are widely used in the industrial field, but in actual use, many users report that the outlet pressure drops instead of rises after startup. This phenomenon seems contradictory, but it involves multiple factors such as aerodynamic principles, system design defects, and insufficient operation and maintenance management. This article will combine professional theory with actual cases to analyze the core reasons for the pressure drop and provide optimization solutions.   1. Core reason: imbalance between compressed air supply and demand The air booster pump is essentially a pneumatic device, and its working power depends on the supply of external compressed air. When the booster pump starts, it will consume additional compressed air flow. If the air compressor's air supply capacity is insufficient, the total system pressure will inevitably drop. Data case: Assuming that the displacement of an air compressor is 1 m³/min, the original equipment (such as dry gas seal) consumes 0.6 m³/min, and the system pressure can be maintained at 0.6 MPa. If the booster pump needs to consume an additional 0.5 m³/min after starting, the total demand reaches 1.1 m³/min, which exceeds the air compressor's supply capacity, and the pressure drops sharply from 0.6 MPa to a lower level.   Theoretical basis: According to the Bernoulli equation, the law of conservation of fluid energy shows that when the flow demand exceeds the supply, the ratio of kinetic energy converted into pressure energy is unbalanced, resulting in a pressure drop. At the same time, the relationship between flow and pressure follows the formula:   Q = A × v   (where Q is flow, A is cross-sectional area, and v is flow velocity) When the flow velocity increases, the pressure can decrease, further exacerbating the insufficient outlet pressure.   2. Analysis of common specific reasons   1.Improper selection or performance degradation of air compressor Selection error: The superimposed flow requirements of the booster pump and the original equipment were not calculated, resulting in insufficient air compressor capacity.   Performance degradation: After long-term use of the air compressor, problems such as piston wear and filter element clogging will reduce the actual displacement. For example, due to improper maintenance of the air compressor by a user, the actual displacement dropped from the nominal 1 m³/min to 0.8 m³/min, which could not meet the requirements of the booster pump.   2. Leakage or component failure of the air system Pipeline leakage: Loose joints or damaged pipes will cause compressed air to lose and pressure cannot be effectively maintained.   Check valve failure: If the check valve is not sealed tightly, the pressurized air will flow back to the low-pressure side, forming pressure fluctuations or even continuous leakage.   Filter clogging: Filter clogging will increase air path resistance, resulting in local pressure loss and reducing effective output.   3. Insufficient air tank capacity The air tank is used to balance system pressure fluctuations. If the capacity is too small, it will not be able to buffer the instantaneous flow demand when the booster pump is started, and the pressure drop will be more significant. For example, in one case, after the user replaced the 5L gas tank with a 50L one, the pressure stability increased by 40%.   3. Solutions and optimization suggestions   1. Accurate selection and flow calculation Flow calculation: Before selecting the booster pump, the total required flow must be calculated (Qtotal = Qequipment + Qbooster pump), and the air compressor displacement must be at least 1.2 times the total demand.   Matching gas tank capacity: Recommended gas tank volume V≥Qtotal×t/60, where t is the shortest working cycle of the booster pump (unit: second).   2. System maintenance and troubleshooting Regular inspection: Check the pipeline sealing, filter status and check valve function every month, and replace aging parts in time.   Air compressor maintenance: Clean the filter element and replace the lubricating oil according to the manual to ensure stable displacement. For example, Atlas Copco's preventive maintenance contract can reduce energy efficiency losses by 30%.   3. Technology upgrade and redundant design Dual pump parallel: For high reliability scenarios, a dual booster pump parallel design is adopted. When a single pump fails, the other pump automatically fills the position.   Intelligent monitoring: Install pressure sensors and IoT modules to monitor pressure fluctuations in real time and issue early warnings. For example, Atlas Copco’s “Intelligent Star” system can identify leakage risks in advance.    
  • Unveiling the Relay Ceramic Shell Helium Detection Equipment
    Unveiling the Relay Ceramic Shell Helium Detection Equipment Jun 06, 2025
    Explore the latest advances in relay ceramic shell helium detection equipment and its industrial significance.   What is relay ceramic shell helium detection equipment? In modern industry, relay ceramic shell helium detection equipment plays a vital role in ensuring product stability and safety. In short, it is a device used to test the sealing integrity of components, using hydrogen as a detection medium to quickly and accurately identify potential leaks.   Growing market demand In recent years, rapid technological advances have driven the growing demand for such equipment, especially in the aerospace, automotive and electronics fields. Even minor leaks can jeopardize product safety, prompting companies to invest in cutting-edge detection solutions to meet stringent quality standards.   Technological innovation Traditional leak detection methods are time-consuming and labor-intensive, while modern relay ceramic shell helium detection systems now use intelligent algorithms to provide results within minutes, significantly improving efficiency.   How to choose the right equipment? There are many types of equipment on the market, and key factors include: 1. Corrosion resistance: Prioritize ceramic shell equipment to ensure durability in harsh environments. 2. Technical support: Choose a supplier that provides comprehensive after-sales service to ensure long-term reliability.   Opportunities and Challenges Relay ceramic housing helium detection equipment is indispensable in industrial applications. While technological advances are expected to further innovate, the increasingly fierce market competition also brings challenges to those companies that strive to stand out. In the future, this field is expected to achieve breakthroughs and has great potential.
  • Extreme Testing of New Energy Vehicles: Three Highs Testing, Component Environmental Testing, and Durability Testing
    Extreme Testing of New Energy Vehicles: Three Highs Testing, Component Environmental Testing, and Durability Testing Feb 10, 2025
    In the era of the rapid development of new energy vehicles, the discussion of their extreme testing is no longer a topic limited among technicians; instead, it is closely related to the vital interests of every consumer. As the market demand for new energy vehicles continues to grow, the performance of vehicles in extreme environments has become a key criterion for measuring their performance and reliability.   From the stringent tests of the vehicle's three highs testing, to the meticulous inspection of components, and then to the long - term challenge of the vehicle's durability testing, each link is a deep exploration of the technological limits of new energy vehicles. These tests not only showcase the forefront of technology but also provide a comprehensive guarantee for the vehicle's safety and durability. Therefore, understanding the details of these extreme tests is an important window for each of us to perceive the future development trends of automobiles.   Vehicle Three Highs Testing: The Ultimate Inspection in Extreme Environments   Vehicle three highs testing is one of the standard tests for new energy vehicles, and its importance cannot be overstated. This series of tests includes three major links: high - temperature, high - altitude, and high - cold, aiming to test the performance and reliability of the entire vehicle under the harshest natural conditions.     First is the high - temperature test, usually carried out in Turpan, Xinjiang, where the surface temperature in summer can reach up to 70°C. Under such extreme high - temperature conditions, the vehicle's thermal management system and the safety performance of the battery will face severe challenges. It tests whether the vehicle can maintain normal operation in an overheated environment and whether it has effective heat dissipation strategies and overheat protection mechanisms.   Test Conditions: High - temperature exposure > 6h Temperature higher than 35°C Total driving mileage should be no less than 10,000 km, with no less than 2,000 km on urban roads, no less than 3,000 km on rural roads, and no less than 5,000 km on highways. Subjective Evaluation Tests: Evaluation of power performance, drivability, NVH performance, electrical performance, etc. Evaluation of air - conditioning cooling and comfort Inspection of daily function operations Objective Evaluation Tests: Collection of key - point temperatures during the test under different working conditions Monitoring of temperature changes and working status Engine - related Tests: Engine Shutdown Protection (Test condition: Temperature 40°C - 60°C): To prevent the engine from being damaged due to overheating, which may affect its service life. Engine Matching Test (Test condition: Temperature 40°C - 60°C): To ensure the matching of the engine and its accessory systems (such as the cooling system, fuel system, and emission system) under high - temperature conditions. Other Tests: Light Aging Test (Test condition: Temperature 40°C - 60°C): To evaluate the performance and durability of automotive components, materials, and the entire vehicle under long - term exposure to sunlight. High - temperature Range Test (Test condition: Temperature higher than 35°C): The vehicle drives from SOC100 to 0%, and the vehicle's range and energy consumption rate are statistically analyzed. High - temperature Charging Test (Test condition: Temperature higher than 35°C): The power battery is discharged to SOC 0% and then charged to full. The charging efficiency = (electricity entering the power battery / electricity from the charging network) * 100%. Also includes forward function testing, reverse function testing, software function testing, scenario simulation testing, extreme function testing, user function experience testing, etc. And temperature testing of the ECU (Electronic Control Unit) and various sensors, electrical system performance testing, basic calibration (such as chassis system calibration), etc.   The high - cold test is completely the opposite. It is often carried out in places like Heihe and Hailar, where the ambient temperature is as low as - 30°C. In such a low - temperature environment, the chemical reaction rate of the battery will drop significantly, affecting the vehicle's range and power output. The focus of the test is the response speed and efficiency of the battery heating system, as well as the battery's discharge performance and low - temperature protection mechanism in severe cold conditions. Test Road Types: High - speed snow loop, snow dynamic square, ice dynamic square, ABS open - circuit, ice and snow roundabout, handling stability road, checkerboard road, snow - melting pool, split - slope ramp Test Conditions: Vehicle soaking > 12h Temperature lower than - 10°C Total driving mileage should be no less than 10,000 km, with no less than 2,000 km on urban roads, no less than 3,000 km on rural roads, and no less than 5,000 km on highways. Subjective Evaluation Tests: Evaluation of power performance, drivability, NVH performance, electrical performance, controllability, braking performance, suspension system performance, etc. Objective Evaluation Tests: Starting Performance Test (Test condition: Ambient temperature - 20°C to - 40°C): To evaluate the cold - start performance, power, efficiency, and reliability of the engine. Heating Performance Test (Test condition: Ambient temperature - 20°C to - 40°C): Collection of key - point temperatures during the test under different working conditions, and monitoring of the temperature changes and working status of the ECU (Electronic Control Unit) and various sensors. Defrosting Performance Test (Test condition: Ambient temperature - 20°C to - 40°C): With the blower at the maximum setting and full - warm defrosting, pay attention to the field of view of the front windshield area and the exterior rear - view mirror during the test. Other Tests: Snow - covered Area Passability Test (Test condition: Ambient temperature - 10°C to - 40°C): Tests include snow - covered road passability test and snow - covered slope passability test. Snow - blowing Test (Test condition: Ambient temperature - 20°C to - 40°C, with a snow - blower set on the high - speed snow loop): To detect whether there is snow accumulation and icing in the front cabin, fan, trunk, lamps, etc., and the operation of functions. Low - temperature Range Test (Test condition: Ambient temperature - 20°C to - 40°C): The vehicle drives from SOC100 to 0%, and the vehicle's range and energy consumption rate are statistically analyzed.   Low - temperature Charging Test (Test condition: Ambient temperature - 20°C to - 40°C): The power battery is discharged to SOC 0% and then charged to full. The charging efficiency = (electricity entering the power battery / electricity from the charging network) * 100%. Also includes forward function testing, reverse function testing, scenario simulation testing, software function testing, extreme function testing, user function experience testing, etc. And calibration of various system and performance parameters of the vehicle in a cold environment, such as engine performance calibration, air - conditioning system performance calibration, basic calibration, "three - electric" system calibration, thermal management system calibration, chassis system calibration.   Finally, the high - altitude test is mainly carried out in areas above 4,000 meters above sea level to detect the electrical safety of new energy vehicles in a low - oxygen environment and the stability of the motor and electronic control systems. In the high - altitude environment, the air is thin, and the insulation performance between electrical equipment will be tested, and arcs are likely to occur. Therefore, this test focuses on whether the vehicle's electrical system can maintain stable operation under oxygen - deficient conditions and the effectiveness of its safety protection measures.   Typical regions for three - high tests   Through vehicle three highs testing, not only can the adaptability of new energy vehicles in extreme environments be comprehensively evaluated, but also direct and effective data support can be provided for subsequent technological improvements, ensuring that new vehicle models have sufficient environmental adaptability and safety guarantees when they are launched on the market.  
  • How to choose equipment suitable for performance testing of new energy vehicle parts?
    How to choose equipment suitable for performance testing of new energy vehicle parts? Jan 02, 2025
    Clarify the test requirements Determine the type of parts: There are many new energy vehicle parts, such as power batteries, drive motors, charging systems, thermal management systems, body and chassis systems, electronic control systems, etc. The test requirements of different parts vary greatly, and the corresponding test equipment needs to be determined according to the specific parts. Understand the test items: Clarify the test items to be carried out, such as power batteries need to be tested for electrical performance, safety performance, environmental adaptability, etc.; drive motors need to be tested for power performance, reliability, electromagnetic compatibility, etc., and select equipment with corresponding functions according to these items.   Pay attention to equipment performance indicators Accuracy: For measuring equipment, such as battery charging and discharging test equipment, motor performance tester, etc., accuracy is crucial. High-precision equipment can provide more accurate test results and help accurately evaluate component performance. Stability: The equipment should maintain stable performance during long-term operation and multiple tests to ensure the consistency and reliability of the test results and avoid inaccurate test data due to equipment fluctuations. Speed: On the production line or in large-scale testing, equipment with faster test speeds can improve test efficiency and shorten the test cycle, but it is also necessary to ensure that the speed does not affect the test accuracy and quality.   Consider compatibility and scalability Compatibility: The equipment should be able to adapt to the testing of new energy vehicle parts of different models and specifications, and have certain versatility and compatibility. For example, battery charging and discharging test equipment should be compatible with various types of power batteries. Scalability: With the development of new energy vehicle technology and the continuous improvement of testing requirements, the selected equipment should have certain scalability to facilitate subsequent upgrades or add new test functions to meet future testing needs.   Investigate equipment quality and reliability Brand and reputation: Choose equipment from well-known brands. Usually these brands have a certain reputation and credibility in the market, and the product quality and after-sales service are more guaranteed. You can understand the brand's reputation through online evaluation, industry recommendations, etc. Certification and qualifications: Check whether the equipment has passed the relevant standard certification and qualification review, such as ISO and other quality management system certification, metrology certification, etc. These certifications are a reflection of the quality of the equipment.   Evaluate after-sales service Maintenance service: Understand the maintenance service capabilities of the equipment supplier, including maintenance response time, maintenance cycle, maintenance costs, etc., to ensure that the equipment can be repaired in time when it fails and reduce downtime. Technical support: The supplier should be able to provide professional technical support, including equipment operation training, test method guidance, troubleshooting, etc., to help users better use and maintain the equipment.   Consider cost factors Purchase cost: According to the budget and actual test needs, choose reasonably priced equipment to avoid blindly pursuing high-end equipment and causing excessive costs, but also ensure that the equipment performance meets basic test requirements. Use cost: Including equipment energy consumption, consumables, maintenance costs, etc., choose equipment with low energy consumption, low frequency of consumables replacement, and simple maintenance, which can reduce long-term use costs.

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