With the rapid growth of data centers, AI computing, high-performance servers, electric vehicles, and energy storage systems, high-power and high-heat-flux equipment is placing increasing demands on thermal management efficiency. As a result, liquid cooling technology is becoming increasingly important across servers, AI chips, battery systems, and other advanced thermal management applications.
As critical components of liquid cooling systems, cold plates, cooling pipes, coolant distribution units (CDUs), heat exchangers, and related thermal management equipment directly affect coolant flow, heat transfer efficiency, and overall system reliability. However, the internal structures of these components—including small-diameter pipes, narrow flow channels, curved passages, and enclosed cavities—can make quality inspection particularly challenging.
On September 10–11, 2026, The 3rd China International Liquid Cooling Technology Innovation Development Forum will take place in Shanghai, China.
Coantec Automation Technology Co., Ltd. will showcase its M40 and C40 industrial borescope series at Booth 72, focusing on non-destructive visual inspection solutions for liquid cooling systems. During the forum, Coantec will explore how industrial borescope technology can support internal inspection throughout product development, manufacturing, quality control, maintenance, and troubleshooting.
Why Is Internal Inspection of Liquid Cooling Systems So Challenging?
Liquid cooling systems often contain internal structures that are difficult to access and inspect directly. Narrow flow channels, small-diameter tubing, curved passages, and complex enclosed cavities can prevent inspectors from easily observing internal conditions using conventional inspection methods.
In components such as cold plates, cooling pipes, CDUs, and heat exchangers, internal issues may include foreign objects, manufacturing residue, blockages, corrosion, scratches, deformation, and other machining abnormalities. If these issues cannot be identified in time, they may affect coolant circulation, heat transfer performance, manufacturing quality, or long-term system reliability.
In practical inspection, the challenge is often straightforward: you cannot see inside, you cannot easily access the inspection area, and disassembly may not be practical.
Closed internal channels make potential defects difficult to locate. Small-diameter pipes and narrow passages place strict requirements on probe size, while curved structures can create visual blind spots. At the same time, disassembling critical components can be time-consuming and may affect component integrity or production efficiency.
Industrial borescopes provide a practical solution by enabling inspectors to access internal spaces and obtain real-time visual information while minimizing disassembly.
From Invisible to Visible: Industrial Borescopes for Liquid Cooling System Inspection
Coantec industrial borescopes can enter equipment through inspection ports, pipe connections, service openings, and other available access points, providing real-time high-definition images of internal conditions.
For liquid cooling inspection applications, different components may require different probe diameters, articulation capabilities, imaging configurations, and environmental protection levels. Coantec's industrial borescope solutions are designed to provide greater flexibility when inspecting a wide range of internal structures.
With probe diameter options ranging from 1.8 mm to 6 mm, the systems can be adapted to different access openings and confined spaces, including small-diameter cooling pipes and narrow cold plate channels.
For curved pipes and complex internal structures, the insertion probe supports 360° all-direction articulation and up to 160° single-direction bending. This allows inspectors to adjust the viewing direction and improve visual coverage inside curved passages and enclosed cavities, helping reduce inspection blind spots.
High-intensity illumination combined with high-definition imaging also helps improve visibility inside narrow and enclosed spaces. Internal conditions such as foreign objects, manufacturing residue, corrosion, scratches, and blockages can be observed more clearly, providing valuable visual information for quality inspection and troubleshooting.
The modular design further improves flexibility during on-site inspection. Different probes and insertion tubes can be quickly replaced according to the inspection task, with lens replacement in as little as 3 seconds and insertion tube replacement in approximately 5 seconds. This helps reduce equipment changeover time when moving between different inspection conditions.
With IP68 protection, the equipment and insertion probes are also designed to withstand demanding industrial environments where water, coolant, oil contamination, dust, and other environmental factors may be present.
From Cold Plates to CDUs: Supporting Inspection of Key Liquid Cooling Components
Industrial borescope inspection can support a wide range of components used in liquid cooling systems.
For cold plates, an industrial borescope can be used to inspect internal flow channels for foreign material, manufacturing residue, blockages, corrosion, scratches, deformation, and machining abnormalities. This can provide valuable support for quality inspection during the manufacturing process.
For cooling pipes and tubing, especially small-diameter or curved lines, visual inspection can help identify internal contamination, foreign objects, residue, corrosion, and potential blockages. This makes industrial borescopes useful for both manufacturing quality control and on-site troubleshooting.
In coolant distribution units (CDUs), inspection through service ports and other available access points can provide visual access to internal cooling lines, pipe connections, and flow channels. This can help inspectors identify foreign material, residual contamination, and potential structural abnormalities.
For heat exchangers, industrial borescopes can be used to inspect heat exchange tubes and internal cavities for corrosion, scale buildup, foreign material, blockages, and tube wall abnormalities. These capabilities can support both manufacturing inspection and equipment maintenance.
The same visual inspection approach can also be applied to condensers, evaporators, precision cooling systems, and other thermal management equipment where internal tubing and enclosed structures are difficult to inspect directly.
Across data centers, AI servers, electric vehicles, energy storage systems, and other advanced thermal management applications, industrial borescopes can provide a flexible method for obtaining visual information from otherwise inaccessible internal spaces.
M40 and C40 Industrial Borescopes for Different Liquid Cooling Inspection Requirements
The M40 series fully modular handheld industrial borescope is designed for flexible inspection across different working conditions. It features a 5-inch HD touchscreen and an IP68 waterproof insertion probe, while its fully modular structure supports rapid replacement of probes and insertion tubes with different diameters.
The M40 also features a quick-release magnetic base, making it easier to position the device during on-site inspection. Its modular design allows inspectors to adapt the system to different internal structures and access requirements, making it suitable for a variety of liquid cooling inspection applications.
The C40 series portable HD industrial borescope provides a lightweight solution for field inspection. As a German Red Dot Design Award-winning product, the C40 features 360° all-direction articulation and a replaceable insertion tube. With a total weight of approximately 0.45 kg, it is designed for convenient handling and rapid deployment.
Optional Wi-Fi image transmission and audio recording modules are also available, providing additional flexibility for inspection documentation and communication.
Together, the M40 and C40 series offer different configurations for inspectors working with complex internal structures, confined spaces, small-diameter pipes, and other demanding liquid cooling inspection environments.
About Coantec | 14 Years of Experience in Industrial Borescope Technology
Founded in 2012, Coantec Automation Technology Co., Ltd. is headquartered in Shenzhen, China. The company specializes in industrial visual inspection technology and integrates research and development, manufacturing, sales, and technical services.
With more than a decade of experience in industrial inspection, Coantec has developed a product portfolio covering industrial borescopes, industrial visual inspection systems, intelligent inspection robots, professional lighting equipment, specialized and non-standard equipment, and customized inspection solutions. Supported by in-house R&D and precision manufacturing capabilities, the company also provides professional OEM/ODM services.
Coantec products are used across industries including aerospace, energy and power, oil and gas, petrochemical, automotive manufacturing, machinery manufacturing, defense, and security. The company is also expanding into emerging applications such as AI robotics and liquid cooling systems, providing visual inspection solutions for complex structures and enclosed spaces.
From visualization and high-definition imaging to measurement and intelligent analysis, Coantec provides industrial visual inspection solutions designed to help users identify hidden issues, improve inspection efficiency, and support quality assurance.
Coantec has nearly 100 employees, with R&D and engineering personnel accounting for approximately 30% of its workforce. Its headquarters covers nearly 4,000 square meters, including more than 1,000 square meters dedicated to machine vision applications and precision machining R&D, supported by more than 100 precision manufacturing and testing devices.
The company has obtained ISO 9001 and GJB 9001C-2017 quality management system certifications and has accumulated more than 120 national patents, including 39 invention patents, as well as 15 registered computer software copyrights.
Coantec products have undergone a range of demanding tests and certifications covering areas such as high and low temperatures, drop resistance, waterproof and dustproof performance, explosion protection, and specialized industry requirements. The company has also obtained more than 70 international certifications, including CE, FCC, RoHS, and REACH.
The P40 (C40) industrial borescope series received the 2016 German Red Dot Design Award. Today, Coantec products are used in more than 120 countries and regions, serving more than 6,000 customers worldwide.
From industrial borescopes to intelligent inspection systems, Coantec continues to develop innovative and reliable technologies that help industrial users detect hidden defects, improve inspection efficiency, and maintain product quality.
Meet Coantec at Booth 72
From September 10–11, 2026, Coantec will showcase its M40 and C40 industrial borescope series at Booth 72 during The 3rd China International Liquid Cooling Technology Innovation Development Forum in Shanghai.
During the event, Coantec's technical team will demonstrate product operation and discuss practical inspection challenges involving liquid cooling systems, small-diameter pipes, narrow flow channels, and complex internal structures.
Coantec looks forward to connecting with industry professionals and exploring more efficient and flexible solutions for non-destructive visual inspection and liquid cooling system inspection.
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