Luoyang Xinqianglian Slewing Bearing Co., Ltd.

Company Profile

1. Personnel Strengths During the reporting period, the Company’s core management and key technical personnel remained stable without significant changes. These personnel have extensive theoretical and practical experience, a deep understanding of industry trends, and solid theoretical foundations and advanced design concepts for product development. By integrating theory with practice and adapting to customer design requirements, they have innovated and optimized manufacturing processes and workflows for various slewing ring products to meet diverse customer needs. Leveraging its location in the Luoyang Bearing Industrial Base—one of China’s five major bearing industry clusters—the company attracts outstanding graduates from bearing-related university programs to build a young technical talent pipeline. Simultaneously, it has taken multiple measures to retain talent in R&D and production teams, including establishing the “University-Enterprise R&D Center for Intelligent Manufacturing of High-End, Extra-Large Slewing Bearings” with local universities and signing a cooperation agreement with Longmen Laboratory to jointly establish an industrial research institute, ensuring its competitive edge in the industry. 2. Advantages in High-End Manufacturing Equipment Slewing bearing manufacturing is capital-intensive, requiring substantial specialized equipment whose performance and machining capabilities determine a company’s production capacity, efficiency, and competitiveness. To meet development needs, the company has procured high-end machining equipment globally, including large-scale CNC machines such as fully CNC-controlled quenching machines from SAI (Italy), CNC high-speed precision gear hobbing machines, fully CNC five-axis machining centers, and CNC superfinishing machines. It also owns wind turbine main shaft bearing test machines capable of simulating operational temperature, vibration, and noise under various conditions, providing effective test data for product design. These advanced production, machining, and testing facilities lay a solid foundation for the company’s new product expansion and the development of large-sized, high-megawatt wind turbine bearings. The company has formulated an equipment upgrade plan to promptly acquire advanced machining and testing equipment in line with industry technological trends and product R&D needs. It is also strengthening cooperation with equipment suppliers to establish long-term strategic partnerships, ensuring timely equipment supply, technical support, and after-sales service. 3. Advantages in Patented and Non-Patented Technologies As of the end of the reporting period, the Company and its subsidiaries held 161 patents in total, including 33 invention patents and 128 utility model patents, demonstrating strong technological R&D and innovation capabilities. The company’s independently developed main shaft bearing for 14-meter-class ultra-large shield machines passed the scientific and technological achievement appraisal by the Henan Society of Mechanical Engineering, filling a domestic gap and reaching internationally advanced levels. Utilizing self-supplied core components such as forgings and rolling elements, it achieves full process autonomy from materials to manufacturing, resolving the long-term reliance on imported main bearings for ultra-large shield machines. The company supplied key components (main drive disc, sealing devices) for the “CRCC 1294” earth pressure balance shield machine (cutterhead diameter 13.65 meters) exported by China to Turkey. As China’s largest-diameter exported shield machine, its successful launch verified the reliability of the company’s products under complex geological conditions. The company participated in formulating the national mechanical industry standard “Rolling Bearings—TBM Main Bearings” and won the Second Prize of the “China Machinery Industry Science and Technology Award” for the project “Research and Application of TBM Series Main Bearings.” Its 8.01-meter-diameter “Wall Breaker” main bearing passed evaluation by an expert panel led by a Chinese Academy of Sciences academician. With a load-bearing capacity of 100,000 kN and a design life exceeding 10,000 hours, some performance indicators are internationally leading, marking China’s entry into the global forefront of shield machine main bearing technology. The company’s 12MW offshore typhoon-resistant wind turbine main shaft bearing was recognized as Henan Province’s first major set of key technical equipment. It overcame high-power wind turbine bearing technical challenges, was successfully installed, entered mass production, and reached internationally advanced technological levels. The company obtained a “Utility Model Patent” for “An Anti-Collision Support Device for Induction Hardening Sensors Without Soft Zones in Large Wind Turbine Bearings.” This device, related to heat treatment safety protection for large wind turbine bearings, uses a reliable mechanical structure to maintain a safe distance between the sensor and workpiece, effectively preventing collisions, improving equipment utilization and production efficiency, and reducing production costs. Its 18-meter-diameter split-type three-row cylindrical roller slewing ring for 3,500-ton cranes represents an internationally advanced technological achievement, marking a new breakthrough for Chinese enterprises in offshore engineering equipment slewing rings. In October 2025, multiple core R&D achievements independently developed or co-developed by the company won national and provincial awards, demonstrating its strong technical capabilities and leading industry position in high-end equipment key bearings. The company-led project “R&D and Industrialization of Key Technologies for Ultra-Large Slewing Bearings” won the Second Prize for Scientific and Technological Progress at the China Machinery Industry Science and Technology Awards, a high industry recognition of its technological innovation. Additionally, two collaborative projects won the First Prize of the 2025 Henan Provincial Mechanical Industry Science and Technology Award: “Research and Development of Key Technologies for Main Shaft Bearings of Large Wind Turbines and Their Application” (with Shengjiu Forgings and Haipusen) and “Research and Development of Key Common Technologies for Extra-Large Slewing Bearings and Their Industrialization” (with Shengjiu Forgings, Haipusen, Henan University of Science and Technology, and Luoyang Institute of Technology). These honors affirm the company’s long-term commitment to technological advancement and overcoming challenges, testifying to its dedication to high-quality development through innovation. Its recognition as a “High-Tech Enterprise,” “Henan Provincial Leading Innovation Enterprise,” and recipient of the “Henan Provincial Science and Technology Progress Award” fully demonstrates its comprehensive strengths in patented and non-patented technologies, reflecting the multifaceted value of technological innovation.