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Industry News

Airtightness Testing_LED Lamps Case

When the same product is tested twice, the results get lower each time—it’s not a problem with the airtightness equipment; it’s a flaw in the method.

2026-09-11

This article explains that the phenomenon of initially high data readings followed by a gradual decrease in airtightness testing is not due to instrument malfunction, but rather to an improper testing method. The root cause lies in the elastic deformation that occurs when the product is pressurized for the first time; if testing continues without sufficient depressurization and recovery, the stress release process in the material will be superimposed on the leakage values, resulting in a systematic drift in the data. Standard procedures require complete depressurization, allowing sufficient recovery time, controlling temperature, and ensuring fixture consistency; only under these conditions can the repeatability of the equipment be truly evaluated.

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Jingcheng Engineering’s Battery Housing Inspection Solution

Air Tightness, Hydrostatic Pressure, and Flow Rate Testing for New Energy Battery Cases: How Many Pieces of Equipment Are Needed for These Three Types of Tests?

2026-09-04

This article presents a comprehensive solution for inspecting new energy battery casings and points out that airtightness testing alone is insufficient to meet the quality requirements for complex casings. For structures such as battery top and bottom covers, it is recommended to use Jingcheng Engineering’s dual-channel airtightness tester in conjunction with a dual-station fixture to improve mass production efficiency; at the same time, separate equipment for testing the water pressure resistance and flow rate of waterproof-breathable membranes must be configured. The article also emphasizes the importance of automated decision-making logic, data traceability management, and solution scalability, and outlines four core dimensions for evaluating testing solutions.

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A Comprehensive Testing Protocol for Waterproof and Breathable Membrane Materials

Can a waterproof and breathable membrane water-barrier tester only measure one pressure level? Jingcheng Engineering’s multi-stage pressure solution is here.

2026-08-28

This article introduces the multi-stage pressure water-blocking and air-permeability tester for waterproof and breathable membranes launched by JCGK. This device overcomes the limitations of traditional single-pressure-point testing by automatically performing continuous multi-stage pressure testing. It simultaneously records pressure, leakage volume, and results for each stage, and supports visual analysis using an electron microscope, providing more comprehensive performance boundary data for the R&D validation and quality control of waterproof and breathable membranes.

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Software Copyright Certificate – Automated Control Software for Interlinked Airtightness Testing on Production Lines

Jingcheng Engineering Secures Three More Software Copyrights: How Did the Airtightness Tester Evolve from a “Standalone Instrument” to an “Intelligent Production Line System”?

2026-08-21

This article reports that Shenzhen Jingcheng Engineering Technology Co., Ltd. was granted three computer software copyrights on August 19, 2026, focusing on assembly line automation control, comprehensive airtightness and pressure resistance testing of seals, and testing of chamber air resistance and pressure resistance limits. The article notes that competition in the airtightness testing equipment sector is shifting from hardware specifications to software algorithms and automation integration capabilities, marking the evolution of domestically produced testing equipment from “instruments” to “testing systems.”

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Leak Testing in the Automotive Industry

Applications of JCGK Leak Detection Equipment from Jingcheng Engineering in the Automotive Industry: From Component Testing to Supply Chain Collaboration

2026-08-14

This article analyzes the reasons behind the surge in demand for airtightness testing in the new energy vehicle industry: Sealing requirements for new energy vehicles are far stricter than those for gasoline-powered vehicles, involving several new critical systems such as battery packs, liquid cooling systems, and thermal management. The article introduces testing methods such as direct pressure, differential pressure, and flow rate testing, emphasizing that automated testing and data traceability have become essential industry requirements. It also highlights the comprehensive solution capabilities of Shenzhen Jingcheng Engineering Technology Co., Ltd. (JCGK) as an industry leader.

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About our JCGK company

Who is Jingcheng Engineering (JCGK)? A domestic air-tightness testing brand dedicated to helping the manufacturing industry detect leaks.

2026-08-07

This article introduces JCGK, founded in 2016, a leading domestic brand of airtightness testing equipment that specializes in helping manufacturing companies identify the risk of micro-leaks in their products through airtightness leak detection, sealing tests, and other technologies. Its core strengths lie in independent R&D, production line integration capabilities, and localized services. The company’s business spans multiple industries, including new energy, automotive, consumer electronics, medical devices, and liquid cooling, and is committed to providing end-to-end reliability assurance—from product testing to the establishment of quality management systems.

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NVIDIA AI Liquid-Cooled Servers

How to Choose a Leak Test Solution for Liquid-Cooled Plates? A Decision-Making Model Based on Three Factors: Leak Rate Requirements, Daily Production Volume, and Operating Costs

2026-07-31

This article addresses the scenario of 100% inspection on production lines in the airtightness testing industry, emphasizing that repeatability is more critical than accuracy. Based on 11 consecutive sets of actual measurement data from the JCGK Direct-Pressure Airtightness Tester by Jingcheng Engineering, the study verifies that its leakage values remain stable at 6–7 Pa, with fluctuations of only ±1 Pa. The paper analyzes the three key technological pillars supporting this performance—high-precision sensors, proprietary gas path control, and temperature drift compensation algorithms—and concludes with recommendations for selecting the appropriate model for different pressure scenarios.

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Differential Pressure Leak Tester

Can Domestic Airtightness Testers Replace Imported Ones? A Guide to Selecting Equipment: From “Replacing Individual Machines” to “Reducing Costs and Improving Efficiency on Production Lines”

2026-07-24

This article explains that the core rationale behind replacing imported equipment with domestically produced airtightness testers has shifted from “low-cost substitution” to “value surpassing.” Taking the Jingcheng Engineering JC-C10005 series as an example, domestically produced equipment has achieved parity with imported counterparts in terms of differential pressure measurement accuracy and has established differentiated advantages in areas such as automation integration, service response speed, and total cost of ownership. Currently, substitution is well established in mainstream mass-production scenarios such as new energy, automotive, and home appliances; only in extreme scenarios such as aerospace does a gap remain.

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Jingcheng Gongke airtightness tester in the automated production line application

The Logic Behind Selecting a Leak Tester Brand for New Projects: How to Ensure Zero-Risk Production Line Implementation Using Proven Case Studies

2026-07-17

This article explains how the manufacturing industry’s approach to purchasing airtightness testers is shifting from “buying standalone units” to “selecting comprehensive solutions.” Companies are no longer focusing solely on price but are instead viewing the equipment as a core quality control point on the production line. JCGK, a leading domestic brand, has become the designated supplier for projects in the new energy, automotive, and consumer electronics sectors thanks to its end-to-end solutions, rapid customization for non-standard requirements, localized services, and mass-production validation across multiple industries, successfully replacing imported products in high-end applications.

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