China's first gas-insulated, fully enclosed transmission line intelligent equipment, the 2XWE67K-800T9000 two-machine linkage servo CNC pipe bending production line, has officially been put into operation at Jiangsu Donghai Group. This advanced system was specifically developed under the National 863 Program for ultra-high voltage (UHV) transmission lines, marking a significant step forward in China's power infrastructure technology.
The intelligent equipment is entirely independently developed by Donghai Group. Weighing 1,600 tons, it is capable of bending high-strength aluminum plates that are 18 meters long and 16 mm thick. The machine features an advanced vertical and horizontal dual-direction disturbance compensation worktable, which allows precise control over the amount of distortion during the bending process based on the material type. This ensures no surface scratches, maintaining the integrity and quality of the final product. Additionally, the CNC front and rear feeding mechanism, along with the material side-out support system, eliminates the need for manual pushing of large workpieces during tube bending. This not only reduces the physical workload for workers but also enhances product consistency and quality, filling a critical gap in China's intelligent forging machinery sector.
Donghai Group has been working closely with the Jinan Forging Research Institute since 2004, leveraging its technical expertise. Over the past decade, the company has built a strong in-house R&D team. From the moment the customer signed the contract to the official commissioning of the equipment, the entire process took less than two months, demonstrating the company’s efficiency and technological maturity. This achievement has significantly boosted the industrial reputation of forging machinery in Hai'an County, showcasing China's growing capabilities in advanced manufacturing.
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