Millimeter-Level Precision Empowers Infrastructure! Steel Bar Processing Equipment Usher in Fully Automated Revolution

2025/10/28 09:53

"In the past, two workers had to carry and process 20mm deformed steel bars, and the dimensional deviation often reached several centimeters; now, we just input parameters, and the equipment automatically calibrates and processes, with the error stably controlled at the millimeter level." At the 4,800-square-meter intelligent steel bar processing center of the Nanyanzhuang Beam Fabrication Yard for the Xiong'an-Xinzhou High-Speed Railway under China Railway Sixth Group, Master Li, a steel bar worker, held the newly produced component in his hand and directly felt the industry transformation. Behind this production revolution taking place at the frontline of infrastructure construction is the leapfrog upgrade of steel bar processing equipment from "manual dependence" to "intelligent autonomy".

Since 2025, with the implementation of intelligent construction policies and the upgrading of major project demands, the steel bar processing equipment industry has entered a period of technological explosion. At the recently concluded BICES 2025 Beijing International Construction Machinery Exhibition, the "Steel Bar Prestressing Zone" jointly built by nine industry leaders focused on displaying innovative achievements such as full-process automated production lines and modular processing systems, marking that China's steel bar processing equipment has ranked among the international advanced ranks. From high-speed railway beam fabrication yards to cross-sea bridge construction sites, intelligent equipment is reshaping the industry's production paradigm.

Full-process automation is the core breakthrough of this technological upgrade. The intelligent numerical control steel cage workstation launched by Zhongji Luyuan Machinery integrates eight processes including main bar sawing, thread rolling, grinding and welding. Through a 6-axis robotic arm welding mechanism and a servo fixed-spacing system, it realizes the standardized production of steel cages with pile diameters ranging from 800mm to 2400mm. Compared with traditional processes, its efficiency is increased by more than 3 times, and raw material loss is reduced by 8%. In the Xiong'an-Xinzhou High-Speed Railway project, the application of the same type of equipment enables the one-time welding forming of the bottom web and longitudinal bars of U-shaped steel cages, completely eliminating secondary processing, and shortening the steel bar processing cycle of a single box girder to less than 4 hours.

Precision control and flexible adaptation capabilities have become the focus of competition. The newly authorized patent for steel bar processing equipment of Zhongji Luyuan Machinery adopts a three-dimensional constraint structure of "double traction wheels - dynamic bending module - anti-lifting limit", which reduces the deformation defect rate of simultaneous processing of multiple steel bars by 30% and can flexibly adapt to diverse scenarios such as prefabricated building components and bridge steel structures. The double-threaded sleeve steel bar connection technology developed by Beijing Wulongxing has achieved a revolutionary breakthrough: without moving the fixed steel bars, it only takes an ordinary wrench to complete the workload that traditionally requires 2 to 5 hours within 30 minutes. The joint performance has passed 2 million fatigue tests and has been successfully applied to major projects such as Xiong'an High-Speed Railway Station.

The intelligent upgrade is bringing significant economic and social benefits. The popularization of numerical control systems has freed steel bar processing from reliance on skilled workers. The intelligent center of the Xiong'an-Xinzhou High-Speed Railway Beam Fabrication Yard only needs 8 operators to complete the workload that traditionally requires 30 people, reducing labor costs by more than 60% and achieving zero safety accidents during the processing process. In terms of environmental protection, integrated equipment reduces steel waste by an average of 15% through precise batching and waste recycling systems, helping the infrastructure industry achieve the "dual carbon" goals.

Behind technological innovation is the continuous increase in R&D investment by enterprises. The annual number of patent applications of enterprises such as Zhongji Luyuan Machinery has increased by 25% in recent years, with core technologies covering the entire chain of processing, connection and testing. Industry experts point out that with the integrated application of technologies such as 5G remote control and AI quality inspection, steel bar processing equipment will achieve intelligent upgrades featuring "automatic process optimization, self-diagnosis of faults and autonomous capacity allocation" in the future.

From the millimeter-level precision of the Xiong'an-Xinzhou High-Speed Railway to the efficient construction of cross-sea bridges, intelligent steel bar processing equipment is becoming the "invisible backbone" for the high-quality development of infrastructure. This industry revolution centered on automation, precision and green development not only solves the pain points of low efficiency and unstable quality of traditional processes, but also builds a replicable and promotable standardized production model, laying a solid foundation for China's intelligent construction industry to move towards the world's leading level.