Anhui Gadro Industrial Technology Co., Ltd. highlights vacuum helium leak detection as a non-destructive testing (NDT) solution for liquid coolers used in electric vehicles, data centres, energy storage systems and high-performance electronics. Its customised helium detection equipment is designed to identify microscopic leaks in liquid cooling components while supporting the inspection requirements of modern manufacturing lines.
As liquid cooling systems become increasingly important for thermal management, preventing coolant leakage is essential to protecting sensitive electronic components and maintaining system reliability. Liquid cooling plates used in electric vehicle batteries and server cold plates require precise inspection to identify potential leakage paths that may compromise performance over time.
Helium Leak Detection for Liquid Cooling Components
Gadro's customised equipment uses vacuum chamber technology to inspect liquid coolers for leaks. According to the company, its helium leak detection technology can identify leak rates as low as (1 \times 10^{-10}) mbar·l/s.
Helium is used as a tracer gas because of its small atomic size and chemical inertness, allowing the method to detect very small leakage paths. Compared with conventional air-under-water testing and pressure decay methods, helium detection can provide greater sensitivity for applications requiring stringent leak-rate limits.
This capability is relevant to liquid cooling components in which even small leaks can create risks for electronics, battery systems and other equipment operating in demanding environments.
Supporting Production Efficiency and Quality Control
In addition to sensitivity, inspection speed is an important consideration for high-volume manufacturing. Gadro's automated production-line solutions are designed to support short inspection cycles while limiting the time required for vacuum stabilisation and signal analysis.
Integrating leak detection into production workflows can help manufacturers inspect components without creating unnecessary bottlenecks. The company positions its customised systems for manufacturers seeking to combine high-precision inspection with automated production processes.
Helium leak detection is also a non-invasive inspection method. Unlike water-submersion testing, it does not expose components to moisture during the test, helping avoid potential contamination associated with that approach.
Digital Monitoring and Inspection Data
Modern helium detection systems can display real-time helium concentration levels, providing operators with information about detected leakage. Gadro also describes integrating inspection data with industrial internet and big-data platforms.
Such data can support the analysis of recurring defects, help identify production trends and inform process optimisation. Linking inspection results with manufacturing data can improve traceability and help quality teams investigate potential issues across production batches.
CE Machinery Safety Requirements for European Markets
Compliance with machinery safety requirements is an important consideration for industrial equipment intended for the European market. The source material identifies the Machinery Directive 2006/42/EC as a relevant framework for machinery safety, including risks associated with mechanical design, electrical systems and pressurised equipment.
For manufacturers of leak detection systems, the applicable conformity assessment process depends on the machinery's design, intended use and relevant legal requirements. CE marking indicates that a product has been assessed for conformity with the applicable European Union legislation; it should not be treated as a general certification of product quality or inspection performance.
Manufacturers seeking to supply equipment to European customers must determine which requirements apply and complete the relevant conformity procedures before placing the machinery on the market.
By combining vacuum helium leak detection, automated inspection and digital data integration, Gadro aims to support liquid cooler manufacturers in addressing leakage risks and production quality requirements across automotive, electronics and other industrial applications.
