Recently, the six-arm integrated fully synchronized bolt tensioning robot independently developed by Leiming Cyber was successfully completed the second round of engineering verification in the major overhaul of the "Hualong One" global first unit - Fuqing Nuclear Power Plant's 504 unit. The equipment operated stably and reliably, and the efficiency of the main bolt insertion/rotation process was improved by 30% compared to the traditional solution. It was highly praised by units such as Fuqing Nuclear Power Plant and China National Nuclear Maintenance. This indicates that the maturity and reliability of this equipment in the nuclear power operation field have been fully verified, providing a strong technical guarantee for the safe and stable operation of China's nuclear power units. 

Nuclear-grade demand-driven: Solving the core pain points of global nuclear power operation and maintenance

The operation of the reactor pressure vessel's cover opening and closing is a "key path equipment" for the major overhaul of the "Hualong One" reactor, directly determining the operation efficiency and safety boundary of the power plant. The technical difficulty and reliability requirements are at the global leading level. Since its first application in 2019, the first generation (V1.0) and second generation (V2.0) of the bolt tensioning robots developed by Leiming Cyber have cumulatively completed 63 successful operations in domestic nuclear power plants such as Fuzhou Units 5 and 6 (V1.0), Tianwan Units 5 and 6, Zhangzhou Units 1 and 2, and Changjiang Units 3 and 4 (V2.0), becoming a reliable core equipment in the field of nuclear power operation and maintenance. 

In response to the extreme pursuit of efficiency and reliability in third-generation nuclear power, the team focused on two common problems in the industry and continued to conduct in-depth research and development: 

The traditional radial floating hydraulic cylinder has a limited floating range and is difficult to adapt to the complex deviation of the main bolt operation conditions. 

The single-process operation mode results in excessively long time required for inserting/extracting the main bolts, which hinders the overall efficiency improvement of the major overhaul. 

Technological Innovation Breakthrough: Dual-Dimension Upgrade to Create "Nuclear Power Manufacturing Benchmark"

In response to industry pain points, Leiming Cyber, after multiple rounds of technical verification and simulation tests, has launched a systematically innovative third-generation (V3.0) integrated full-synchronous bolt tensioning robot, establishing dual technological advantages: 

Core component innovation: The world's first "radial + axial bidirectional fully floating cylinder" is introduced. It breaks through the limitations of traditional single-directional floating design, enabling comprehensive adaptive compensation for the main bolt operation, significantly enhancing the reliability in complex working conditions. 

2. Collaborative Control Breakthrough: For the first time, the 6 mechanical arms adopted a fully synchronized collaborative technology. Through high-precision kinematic modeling and distributed control algorithms, the efficiency of key processes was increased by 30%, significantly reducing the critical path time for major overhauls. With the strong support of Fuzhou Nuclear Power and China National Nuclear Maintenance, this equipment completed the third-generation (V3.0) full system optimization and upgrade in 2025, becoming the first intelligent equipment to achieve "bidirectional floating + multi-hand synchronization" for main bolt operations. 

Engineering verification results: Practical tests showcase technical strength

At the 603 major overhaul and 504 major overhaul sites of Fuzhou Nuclear Power Plant, the Remon Cyber team worked closely with cooperating units and successfully completed all-scenario verification: 

Reliability verification: The bidirectional fully floating cylinder precisely compensates for multi-dimensional deviations, enabling stable operation with zero failures. 

2. Efficiency improvement: The 6 robotic arms synchronization technology reduces the time for key processes by 30%, shortens the overhaul cycle, and generates an economic benefit of approximately 1-2 million yuan per overhaul (Electricity generation economic benefit: 56,000 yuan per hour). 

3. Adaptive Expansion: Perfectly matching the structural characteristics of "Hualong One", it provides a standardized solution for the adaptation of multiple types of machines. The verification results show that this robot has ranked at the forefront of the industry in terms of reliability and operational efficiency, providing a safer and more efficient intelligent equipment solution for the maintenance of third-generation nuclear power units. 

Industry value is profound: Empowering the autonomy and globalization of nuclear power equipment

As a landmark achievement of China's independent research and development of high-end nuclear power operation equipment, the successful application of this robot has three core significances: 

1. Technological Autonomy: Break the monopoly of foreign nuclear maintenance equipment, build a complete core technology system with independent intellectual property rights, and help achieve autonomous control of the "Hualong One" industrial chain. 

2. Safety and Efficiency: Significantly reduces the risk of human intervention, enhances the safety guarantee capability of the reactor, and provides a crucial support for "cost reduction and efficiency improvement" of nuclear power plants. 

3. International Leadership: The simultaneous and coordinated operation of multiple robotic arms in nuclear equipment applications provides a "Chinese solution" for the global intelligent upgrade of nuclear power plants, helping China's high-end nuclear power equipment enter the international market. 

4. Value-added Innovation: The current V1.0 and V2.0 versions of the bolt tensioning robot can all be upgraded to the V3.0 version. After the upgrade, it can generate approximately several million yuan in power generation economic benefits for each major overhaul of the nuclear power plant owner (Power generation economic benefit: 56,000 yuan per hour). 

In the future, Raymond Cyber will continue to deeply focus on the field of nuclear power intelligent equipment, driving industry upgrading through technological innovation, and contributing the power of Chinese manufacturing to the safe and efficient operation of global nuclear power!