As AI server power and rack density continue to increase, traditional air cooling can no longer meet heat dissipation requirements, and liquid cooling is becoming an important technology route for data centers. In the precision assembly of core components such as liquid cooling servers, CDUs, cold plates, UQDs, and pipelines, the tightening quality of a single screw directly affects heat dissipation efficiency, system sealing, and long-term reliability——fastening failure can, at best, affect heat dissipation performance, and at worst, cause downtime of the entire data center.

However, currently, a large number of liquid cooling server production lines still rely on clutch screwdrivers for tightening operations. This method has three unavoidable shortcomings:

01

Visible Results, Invisible Process

Clutch screwdrivers lack data communication capabilities. When tightening defects occur, there is a lack of torque, angle, and curve data as a basis for analysis. Is the problem in the tool, the process, or the incoming materials? One can only guess based on experience, making it difficult to meet the quality traceability requirements of intelligent manufacturing.

02

Anomalies Occur, No Data to Trace

Clutch screwdrivers lack systematic product data management capabilities, with no product number, workstation information, or assembly time records, making it impossible to establish associations between different products at the same workstation or the same product at different workstations. When quality anomalies occur, it is impossible to trace which workstation, which tool, and what time a specific product was assembled. Without product data archives, quality traceability is out of the question.

03

OK and NOK Scattered Across Different Workstations, Difficult to Close the Loop on Quality Judgment

Clutch screwdrivers lack systematic product data management capabilities, with no product number, workstation information, or assembly time records, making it impossible to establish associations between different products at the same workstation or the same product at different workstations. When quality anomalies occur, it is impossible to trace which workstation, which tool, and what time a specific product was assembled. Without product data archives, quality traceability is out of the question.

04

Full-Stack "All-in-One": One-Stop Upgrade from Tightening to Full-Element Assembly Capabilities

Deep Integration of Tightening and Feeding Technology

DEPRAG digital tightening screwdrivers combine brushless motor drive technology with the AST12 controller (with built-in torque and angle monitoring system) to precisely control the entire tightening assembly process. The torque range of the digital tightening screwdrivers covers 0.008Nm–70Nm, fully meeting the diverse tightening needs of liquid cooling data center infrastructure, from tiny screws to large fasteners. At the same time, combined with the DEPRAG automatic feeding system, it achieves full-process automation from feeding to tightening.

Digital Platform Connects the Entire Process

The DEPRAG PLUS digital tightening system is compatible with serial ports, fieldbuses, Ethernet, and other communication methods, and supports various protocols such as OPC UA, MQTT, REST, and FTP, enhancing production-line-level data availability, effectively reducing the generation of "data silos" on the production floor, and achieving two-way interaction between assembly data and upper-level systems.

"Cloud Realm" Ecological Closed-Loop Empowerment

From the hardware layer to the application layer, DEPRAG provides full-stack solutions to assist industry partners in digital transformation and upgrading.

The data from DEPRAG's "Cloud Realm · Digital Cockpit" digital platform can be integrated into customers' MES, IoT, and other systems to uniformly manage all tightening systems on the production floor, achieving data collection, status monitoring, and data analysis, conducting trend identification and predictive maintenance, continuously monitoring and analyzing tightening tasks, and achieving continuous process optimization.

From cold plates to CDUs, from quick-disconnect couplings to pipeline sealing, DEPRAG takes precision tightening technology as its core, integrates assembly automation and digital capabilities, and continues to provide high-value "all-in-one" precision assembly solutions in hot fields such as liquid cooling data centers and optical communication modules.

As a premier event in the intelligent assembly and automation industry, AHTE is committed to building a cross-border empowerment platform for high-end intelligent automated manufacturing driven by "new quality productive forces." It is dedicated to enhancing the resilience of China's supply chain, empowering the world with technology, and offering a one-stop gathering of global advanced manufacturing and assembly testing solutions, helping you carry out global sourcing and supply chain optimization and restructuring to achieve cost reduction and efficiency enhancement.

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