{"id":8339,"date":"2026-08-14T15:00:26","date_gmt":"2026-08-14T07:00:26","guid":{"rendered":"https:\/\/www.air-tester.com\/?p=8339"},"modified":"2026-08-14T15:52:24","modified_gmt":"2026-08-14T07:52:24","slug":"qi-che-qi-mi-xing-jian-lou-zhuang-bei","status":"publish","type":"post","link":"https:\/\/www.air-tester.com\/en\/qi-che-qi-mi-xing-jian-lou-zhuang-bei.html\/","title":{"rendered":"Applications of JCGK Leak Detection Equipment from Jingcheng Engineering in the Automotive Industry: From Component Testing to Supply Chain Collaboration"},"content":{"rendered":"

On a new energy vehicle production line, a battery pack, a thermal management system, a valve assembly, or even a connector,Any product with internal gas or liquid passages or sealed chambers must pass a gas tightness test before leaving the factory.<\/strong>The<\/p>\n\n\n\n

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New Energy Vehicle Production Line<\/em><\/figcaption><\/figure>\n\n\n\n

In the past, this type of testing was mainly done in laboratories, where a few samples were taken and analyzed.Now it goes straight into the smart manufacturing production line, where every product is inspected.<\/strong>The
This is because the sealing requirements for new energy vehicles are much higher than those for gasoline-powered vehicles. Even a small leak of water or air can trigger a chain reaction of problems.<\/p>\n\n\n\n

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Shenzhen Jingchenggongke Technology Co., Ltd.<\/a>(JCGK) has long been deeply involved in the automotive parts and new energy sectors, establishing a comprehensive portfolio ranging fromAirtightness testing equipment<\/a>, from inspection fixtures to automation integration and data traceability<\/strong>its comprehensive solution capabilities. According to publicly available information, Jingcheng Engineering has served more than 3,600 well-known clients worldwide, spanning industries such as new energy, automotive parts, consumer electronics, medical devices, robotics, aerospace and defense, and liquid cooling.<\/p>\n<\/blockquote>\n\n\n\n

Q1: Why is airtightness testing becoming increasingly important in the automotive industry?<\/h2>\n\n\n\n

As automobiles are evolving from mechanical products into highly integrated mechatronic systems, the consequences of seal failure are becoming increasingly complex.<\/strong><\/p>\n\n\n\n

The Era of Traditional Gas-Powered Vehicles<\/strong>, Leak testing primarily focuses onEngine, transmission, fuel system, braking system, air conditioning system, and certain valve bodies and lines<\/strong>. The inspection requirements for these components are relatively fixed, and the overall scope is limited.<\/p>\n\n\n\n

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Leak Testing in the Automotive Industry<\/em><\/figcaption><\/figure>\n\n\n\n

Since the advent of new energy vehicles<\/strong>, the scope of the inspection has been expanded toPower battery packs, battery enclosures, battery cooling systems, liquid-cooled plates, drive motors, electronic control systems, thermal management systems, various valve assemblies, automotive sensors, connectors, and pipe fittings, etc.<\/strong>. Jingcheng Engineering\u2019s automotive industry solutions also list a variety of airtightness testing application cases, including automotive sensors, diaphragm pumps, water-cooled plates, brakes, and instrument panels.<\/p>\n\n\n\n

In the automotive industry, air-tightness testing is expanding from a few key assemblies to cover an increasing number of components as part of quality control processes.<\/strong><\/p>\n\n\n\n

Q2: Why is airtightness testing particularly important for new energy vehicles?<\/h2>\n\n\n\n

Because new energy vehicles incorporate a large number of systems that are highly sensitive to sealing performance, a failure in any one of them could trigger a chain reaction.<\/strong><\/p>\n\n\n\n

Power batteries not only need to prevent the ingress of external moisture and dust, but their internal structure also imposes strict requirements on sealing reliability.In a liquid-cooling system, any leak in the liquid-cooling plate, cooling lines, or fittings can result in the loss of coolant, which directly affects the normal operation of the thermal management system and, in severe cases, may even pose a safety hazard.<\/strong>The<\/p>\n\n\n\n

For mass-production companies, airtightness testing is no longer \u201cLet's take a few samples and take a look.<\/strong>\" quality spot checks. The real challenge lies in:How can inspection be reliably integrated into the production line to ensure it is fast, repeatable, and traceable?<\/strong>
This is precisely the key driver behind the transition of automotive parts airtightness testing equipment from laboratory instruments to in-line testing systems.<\/p>\n\n\n\n

Q3: What methods are generally used to test the airtightness of automotive parts?<\/h2>\n\n\n\n

There is no single method that works for all automotive parts. The actual selection depends on a comprehensive balance of factors such as product volume, allowable leakage rate, test pressure, production cycle time, and inspection accuracy.<\/strong><\/p>\n\n\n\n

direct pressure<\/strong>The most direct way is,Gas is introduced into the test piece at a specified pressure, and leaks are detected by measuring the rate of pressure drop.<\/strong>. This method has a clear principle, offers fast testing speeds, and involves relatively simple system setup, making it suitable for batch inspection of large quantities of standard industrial components.<\/p>\n\n\n\n

differential pressure<\/strong>It is better suited for applications that require sensitivity to minute pressure changes and high repeatability.Pressure is applied simultaneously to the reference chamber and the workpiece under test, and a high-precision differential pressure sensor is used to compare the pressure changes on both sides to detect leaks.<\/strong>Precision Engineering's JC-C10005<\/a> The series differential pressure measurement, combined with temperature compensation, effectively reduces the impact of environmental factors on test results.<\/p>\n\n\n\n

flow rate method<\/strong>pass (a bill or inspection etc)Monitor the flow rate of the gas required to maintain the test pressure to estimate product leakage.<\/strong>, and offers good engineering compatibility with certain automotive components.<\/p>\n\n\n\n

High-Sensitivity Detection Methods, Such as Helium Mass Spectrometry<\/strong>This is reserved for products with specific requirements regarding maximum leakage rates.<\/p>\n\n\n\n

However, in actual mass production environments, not all automotive components require inspection methods with the highest sensitivity.Test accuracy that is sufficient for the application, cycle time matching, reasonable costs, and the ability to achieve stable mass production are often more important than simply pursuing higher sensitivity.<\/strong><\/p>\n\n\n\n

Q4: Why is there an increasing emphasis on automation in leak testing for automotive parts?<\/h2>\n\n\n\n

This is because what the automotive industry really cares about isn\u2019t \u201cwhether it can be tested,\u201d but \u201cwhether every product can be tested consistently.\u201d<\/strong><\/p>\n\n\n\n

A single production line produces thousands\u2014or even more\u2014parts every day. If we continue to rely on manual labor to complete the entire process\u2014including clamping, applying pressure, waiting, taking readings, making judgments, and recording data\u2014efficiency is a problem, but data integrity and consistency of results are even bigger issues\u2014Errors in manual readings, missed inspections, incorrect inspections, and inability to trace batches<\/strong>...Any of these issues could create potential problems in subsequent quality control.<\/p>\n\n\n\n

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Precision EngineeringFour-channel airtightness meter<\/a>Applications in Customer Automation Workshops<\/em><\/figcaption><\/figure>\n\n\n\n

As a result, leak testing for modern automotive parts is increasingly moving towardAutomatic loading + automatic clamping + automatic inflation + automatic inspection + automatic evaluation + automatic recording<\/strong>A complete closed-loop system.Jingcheng Engineering currently offers direct-pressure, differential-pressure, flow-based, fixed-volume, and positive\/negative pressure hybrid types, among others.Air tightness testing equipment<\/a>, and supports multi-channel and custom solutions<\/strong>The<\/p>\n\n\n\n

Q5: Why do auto parts manufacturers still need custom tooling?<\/h2>\n\n\n\n

Because the sealing interfaces, connections, and cavity structures of different components vary significantly, generic tooling cannot address customized sealing challenges.<\/strong><\/p>\n\n\n\n

Sensors require seals designed for their interface locations; water-cooling plates require precise sealing of their inlet and outlet ports; valve bodies must be compatible with different gas ports; battery enclosures require fixtures designed around the overall sealing perimeter; and connectors must address sealing issues at ports and wiring harness interfaces.<\/p>\n\n\n\n

This means that a true airtightness testing solution is usually not \u201cJust buy one instrument and you're done<\/strong>\", but ratherleak detector <\/a>+ Tooling and Fixtures + Pneumatic Systems + PLC + Automation Mechanisms + Data Systems<\/strong>together form a complete testing unit. This is also why Jingcheng Engineering has expanded its focus from simply supplying equipment to \u201cFully automated airtightness testing program<\/strong>\"The root cause of .\"<\/p>\n\n\n\n

Q6: Why is the automotive industry placing increasing importance on test data?<\/h2>\n\n\n\n

This is because the automotive supply chain of the future will require not only that \u201cproducts meet specifications,\u201d but also that \u201cit can be demonstrated why the products meet those specifications.\u201d<\/strong><\/p>\n\n\n\n

After an automotive component undergoes a leak test, a complete data record is generated that includes the product number, test pressure, hold time, leakage rate, pass\/fail result, test time, and production batch. By connecting to systems such as PLCs and MES via a communication interface, it is possible to establishProduct\u2014Test Data\u2014Production Batch<\/strong>The traceback relationship between them.<\/p>\n\n\n\n