Echoes of Precision by the Jiang and Hai Rivers
In Nantong, a land imbued with the entrepreneurial spirit of Zhang Jian, every pulse of manufacturing resonates with the grand narrative of China’s industrial economy. Recently, Shi Jinhua, Deputy Director of the Investment and Technology Renovation Division of Jiangsu’s Department of Industry and Information Technology and head of the Science and Technology Mayor Team of Hai’an City, led a delegation to Nantong Liyuanheng Machinery Co., Ltd. to conduct research and guidance focused on the production and innovation of Raymond mills. This was not an ordinary visit; it was an in-depth observation of how foundational equipment enterprises can strengthen their base, overcome bottlenecks, and lead the future in the context of Jiangsu Province’s push for high-end, intelligent, and green manufacturing.
On-Site Research — A Dialogue on “Industrial Mother Machines” Precision and Depth
The arrival of the research team brought fresh perspectives to the orderly production environment at Liyuanheng Machinery. Without ceremony, the team went straight to the production floor, focusing on core areas such as equipment, processes, and talent.
1.1 “Microscopic” Insights on the Production Line

In the heavy machining workshop, Deputy Director Shi carefully examined the welding process and precision control of large structural components. His attention was particularly drawn to the CNC machining centers for Raymond mill core components—grinding rollers and rings. He inquired about machining tolerances, tool life, and quality control systems. Learning that Liyuanheng had implemented an online measurement system achieving 100% inspection of key dimensions with a closed data loop, he praised their pursuit of extreme precision, noting, “The reliability of foundational equipment is built on the accumulation of micron-level accuracy.”
Members of the Science and Technology Mayor Team showcased their expertise. A university expert in mechanical engineering commended Liyuanheng’s progress in vibration analysis and noise control and discussed possibilities for further optimizing the overall structure through dynamic simulation. A professor specializing in automation focused on the assembly line, discussing torque parameters of the intelligent tightening system and the alignment with process documentation, emphasizing that “data-driven assembly is crucial for long-term operational stability.”
1.2 “Macroscopic” Focus in the Roundtable

During the subsequent roundtable, the conversation shifted from technical details to industry trends and corporate strategy. Deputy Director Shi stated directly: “High-quality development of Jiangsu’s manufacturing depends on ‘specialized, refined, distinctive, and innovative’ enterprises like Liyuanheng. As the ‘mother machine’ of the powder industry, Raymond mills determine the competitiveness and energy efficiency of downstream industries in construction, chemical, metallurgy, and non-metallic minerals. Our visit aims to understand the real demands and challenges enterprises face in technological transformation, R&D innovation, and upgrading along the value chain.”
Liyuanheng’s management and technical teams openly discussed critical issues: reliance on imported high-end bearings, building a powder processing database for different materials, bottlenecks in developing intelligent maintenance systems, and the cultivation and retention of compound technical talent. Each key topic affecting the enterprise’s present and future was laid on the table.
Liyuanheng’s “Hardware” — Hard-Core Strength Revealed in Details
Faced with in-depth inquiries, Liyuanheng showcased its expertise and ambition as an industry leader.
2.1 Dual Symphony of Craftsmanship Inheritance and Technological Iteration
Liyuanheng Machinery’s success in the Raymond mill field was not overnight. Its development mirrors China’s foundational equipment journey from “usable” to “good” to “exquisite.” The founders and technical teams, with deep understanding of powder milling mechanics, implemented dozens of improvements in core areas such as main machine structure, transmission methods, and air classification systems.
Structural Reinforcement: Using finite element analysis for topological optimization, the main machine achieves rigidity while reducing weight, enhancing stability and energy efficiency at the source.
Material Breakthroughs: Collaborating with research institutes, they developed grinding roller and ring assemblies from specialized alloys, and through advanced heat treatment increased wear resistance by over 30%, significantly extending the life of critical consumables and reducing total usage costs.
Process Innovation: Introducing laser trackers and other precision measuring equipment ensures assembly accuracy of large components. Eco-friendly powder coating and automated spraying lines improve aesthetics and corrosion resistance, embodying green manufacturing principles.
2.2 Forward-Looking Layout Amid the Wave of Intelligence
Under the “Industry 4.0” paradigm, Liyuanheng is upgrading Raymond mills from isolated machines to interconnected intelligent nodes.
Condition Monitoring: Sensors for vibration and temperature are embedded in new models to provide real-time operational data for predictive maintenance.
Remote Maintenance: A cloud platform allows engineers to diagnose faults, optimize parameters, and perform online software upgrades, greatly enhancing service response and customer experience.
Process Integration: Beyond selling individual machines, Liyuanheng offers system solutions for industries like deep calcium carbonate processing and solid waste utilization, integrating process design, equipment selection, and intelligent control, transitioning from equipment manufacturer to “powder technology solution provider.”
Collaborative Strength — Government, Industry, and Academia Shaping a New Ecosystem
The core value of this research lies in its demonstration of how government, industry, and academia can form effective synergy to drive industrial advancement.
3.1 “Targeted Irrigation” of Policy Resources
Deputy Director Shi, with his dual perspective of macro strategy and practical implementation, introduced Jiangsu’s policies encouraging enterprise technological transformation, promotion of first-of-a-kind equipment, and cultivation of specialized and innovative enterprises.
Technology Renovation Guidance: Support for investment in intelligent upgrades, digital transformation, and green improvements, with clear subsidy and tax benefit pathways.
Innovation Support: Directing projects like intelligent maintenance systems and new material applications toward provincial funds and key technology initiatives.
Ecosystem Building: Promoting high-end equipment development through initiatives like “Intelligent Renovation, Digital Transformation, Network Integration,” supporting the coordinated growth of chain-leading and supporting enterprises.
3.2 Science and Technology Mayor Team as a “Bridge”
The team, composed of university researchers and government officials, acts as a catalyst, breaking information barriers and facilitating rapid connection of innovative resources.
Technical Advisory: Led by Senior Engineer Shi, the team provided real-time technical guidance.
Talent Referral: Assisting Liyuanheng in connecting with universities to establish graduate workstations, organize recruitment events, and implement tailored training.
R&D Collaboration: Linking material science and intelligent system projects with university labs for joint applications to provincial and national research projects, combining market insights with research capacity.
Looking Ahead: Infinite Possibilities from “One Grain of Powder” to “One Chain”
Although the research visit concluded, its impact continues to unfold. For Liyuanheng, the visit offered both external benchmarking and a consensus-building opportunity. The company’s future development path is increasingly clear:
Deepening Technological Innovation: Pursuing intelligent, green, and customized solutions, aiming not only for domestic leadership but also global competitiveness.
Building Industrial Alliances: With support from the mayor team and industry authorities, forming alliances with upstream and downstream enterprises, universities, and research institutes to collaboratively tackle common technological challenges.
Expanding Application Boundaries: Applying advanced powder technology to emerging sectors such as new energy battery materials, electronic ceramics, and pharmaceutical powders, driving strategic emerging industries through core equipment advancement.
Deputy Director Shi’s visit and the Science and Technology Mayor Team’s engagement with Nantong Liyuanheng Machinery Co., Ltd. represented a focused, substantive, and deeply interactive initiative. It transcended simple “guidance” to create a multi-party, innovation-driven scenario for joint development. In Jiangsu’s grand journey from a “manufacturing province” to a “manufacturing powerhouse,” it is these grounded investigations, pragmatic dialogues, and precise policies that form the driving force propelling the industrial engine forward. Enterprises like Liyuanheng, dedicated to “grinding every grain of powder well,” stand as the firmest and most inspiring cornerstone of this momentum. Their growth is not only about their own destiny but also defines the resilience and confidence of Chinese manufacturing on the global stage.


