Jiangsu Dongfei Precision Machinery Co., Ltd.

Jiangsu Dongfei Precision Machinery Co., Ltd.

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  • Domestic High-End 5-Axis CNC Machines Mass-Supplied to BYD, Core Component Machining Achieves Self-Reliance
    A milestone achievement has been made in China’s high-end equipment manufacturing industry as a leading domestic CNC machine tool enterprise officially announced the mass supply of high-end 5-axis CNC machines to BYD. This collaboration marks the first time that domestic high-end 5-axis CNC equipment has been adopted in large-scale production of new energy vehicle (NEV) core components, realizing the critical breakthrough of self-reliance in the machining of key automotive parts such as drive motors and battery packs.   As the "brain" and "hands" of high-end manufacturing, 5-axis CNC machines are crucial for processing complex, high-precision components. Previously, the machining of BYD’s NEV core components relied heavily on imported 5-axis CNC machines from Europe and Japan, which faced challenges such as high procurement costs, long delivery cycles, and limited after-sales support. The domestic high-end 5-axis CNC machines supplied this time have undergone rigorous testing and verification, with key performance indicators such as machining accuracy, stability, and efficiency reaching international advanced levels.   According to relevant person in charge of BYD, the domestic 5-axis CNC machines have been put into use in multiple NEV production bases. They are mainly used for machining high-precision components such as motor stators, rotors, and battery pack casings. The application data shows that compared with imported equipment, the domestic machines reduce the unit machining cost by about 30% and shorten the production cycle by 20%, while ensuring the consistency and reliability of product quality. "This cooperation is a win-win for both parties. It not only enhances the cost competitiveness of our products but also promotes the upgrading of the domestic CNC machine tool industry," the person in charge added.   Industry experts pointed out that the mass supply of domestic high-end 5-axis CNC machines to BYD is a significant symbol of the maturity of China’s high-end CNC equipment industry. It breaks the long-term monopoly of foreign brands in the high-end NEV component machining field and strengthens the independent controllability of the domestic automotive industrial chain. With the accelerating development of the NEV industry, the demand for high-precision CNC machining equipment will continue to grow, providing broad space for the development of domestic CNC machine tool enterprises.   The domestic CNC machine tool enterprise stated that it will continue to deepen technological research and development, optimize product performance, and expand cooperation with more key enterprises in the automotive, aerospace, and other fields. It aims to contribute more to the localization of high-end equipment and the high-quality development of China’s manufacturing industry.

    2025 12/16

  • Technological Breakthrough! Domestic Ceramic-Coated Fasteners Pass 1000-Hour Salt Spray Test, Ending Import Dependence
    A major technological milestone has been achieved in China’s fastener industry as a domestic research team, in collaboration with a leading manufacturing enterprise, announced that their independently developed ceramic-coated fasteners have successfully passed the 1000-hour neutral salt spray test. This breakthrough not only verifies the superior corrosion resistance of domestic ceramic-coated fasteners but also marks China’s official end to long-term dependence on imported high-performance corrosion-resistant fasteners, filling a key gap in the country’s high-end fastener supply chain.   Fasteners are critical basic components widely used in aerospace, marine engineering, offshore wind power, and other high-end equipment fields. In harsh environments such as high humidity, salt fog, and chemical corrosion, the corrosion resistance of fasteners directly determines the safety and service life of the entire equipment. Previously, high-performance ceramic-coated fasteners relied heavily on imports from Europe and Japan, with high procurement costs and long supply cycles, restricting the independent development of China’s strategic emerging industries.   The newly developed ceramic-coated fasteners adopt an innovative plasma spraying technology, which forms a dense, uniform ceramic coating on the surface of the fasteners. Unlike traditional coating technologies, this new process enhances the bonding strength between the coating and the fastener substrate, effectively avoiding coating peeling and cracking. According to the test report released by the National Fastener Quality Supervision and Inspection Center, after 1000 hours of continuous salt spray corrosion testing, the surface of the domestic ceramic-coated fasteners showed no signs of rust, corrosion, or coating damage, with a corrosion resistance level that meets or exceeds international advanced standards.   “The 1000-hour salt spray test is a strict benchmark for evaluating the corrosion resistance of high-end fasteners,” said Dr. Li Ming, the leader of the research team. “Our team has overcome key technical difficulties such as uneven coating thickness and poor bonding strength through three years of research and development, optimizing the coating material ratio and spraying process parameters repeatedly. The successful passing of the test means that domestic fasteners can fully meet the harsh environment application requirements of offshore wind power, marine engineering, and other fields.”   Industry insiders pointed out that this technological breakthrough will significantly reduce the procurement cost of high-performance fasteners for domestic enterprises. It is expected that the price of domestic ceramic-coated fasteners will be 30%-40% lower than that of imported products, while ensuring stable supply. This will not only enhance the core competitiveness of China’s equipment manufacturing industry but also provide strong support for the localization of key components in strategic industries such as new energy and aerospace.   At present, the research team has completed the industrialization transformation of this technology, and the first batch of domestic ceramic-coated fasteners has been put into trial application in a number of offshore wind power projects. The relevant enterprise stated that it will further expand production capacity and promote the wide application of this technology in more fields, contributing to the high-quality development of China’s fastener industry.

    2025 12/13

  • Smart Fasteners Empower High-End Manufacturing, Real-Time Monitoring Enhances Equipment Safety and Reliability
    The integration of smart technology into basic components has achieved new progress in China’s high-end manufacturing sector. A domestic high-tech enterprise recently launched a new generation of smart fasteners equipped with real-time monitoring functions, which have been successfully applied in precision machinery, aerospace, and new energy equipment fields. This innovation not only upgrades the traditional fastener from a "passive connection part" to an "active monitoring node" but also provides a reliable technical solution for improving the safety and operational reliability of high-end equipment.   Fasteners are the "joints" of industrial equipment, and their stability directly affects the overall performance of the equipment. In high-end manufacturing scenarios such as aerospace and intelligent production lines, traditional fasteners lack real-time status perception capabilities, making it difficult to detect hidden dangers such as loosening, fatigue, or corrosion in a timely manner, which may lead to equipment failure or even safety accidents. The newly developed smart fasteners solve this pain point by embedding micro-sensors and wireless transmission modules into the fastener structure.   According to the R&D director of the enterprise, the smart fasteners can real-time collect key data such as bolt preload, temperature, and vibration during equipment operation, and transmit the data to the central control system through low-power wireless communication technology. The system can automatically analyze the data and issue early warnings when abnormal values are detected, enabling maintenance personnel to carry out targeted maintenance before failures occur. Compared with traditional manual inspection, this mode reduces the maintenance cost by 40% and improves the equipment operation efficiency by 25%.   “Smart fasteners are an important part of the intelligent transformation of high-end manufacturing,” said an industry expert. “In the context of Industry 4.0, the demand for intelligent monitoring of equipment is increasing. The successful application of this technology fills the gap in domestic smart fastener research and development, breaking the monopoly of foreign brands in the high-end market.” It is reported that the smart fasteners have passed strict performance tests and have been adopted by several major domestic equipment manufacturers.   At present, the enterprise is accelerating the expansion of production capacity and optimizing the product series to adapt to different application scenarios. The relevant person in charge said that the future will further promote the combination of smart fasteners with big data and AI technologies, realize predictive maintenance of equipment, and inject new momentum into the high-quality development of China’s high-end manufacturing industry.

    2025 12/09

Total 3 News

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