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Liaoyuan New Energy Co., Ltd. has been officially recognized by the Ministry of Industry and Information Technology of China as a National Specialized, Sophisticated, Unique and New “Little Giant” Enterprise, valid from July 1, 2025, to June 30, 2028. This prestigious recognition highlights Liaoyuan’s consistent focus on advanced manufacturing capabilities, technological innovation, and high-quality industrial production, reinforcing its position as a key partner for global OEMs in heavy-duty industrial equipment and energy sectors. Previously acknowledged at the provincial level, Liaoyuan’s elevation to national-level status reflects its sustained commitment to specialized manufacturing, continuous process improvement, and the development of critical forged components, including open die forgings, ring rolled forgings, machined shafts, machined rings, hubs & coupling components, and gearbox components. Liaoyuan receives ”National Little Giant Enterprise“ recognition The National “Little Giant” designation recognizes enterprises that demonstrate: Specialization: Mastery in niche manufacturing segments with significant technical depth. Innovation: Continuous investment in research, process optimization, and technology development. Quality and Reliability: Consistent delivery of high-performance components meeting global industrial standards. Growth Potential: Scalable production capabilities and long-term strategic vision. With this national recognition, Liaoyuan continues to strengthen its position as a trusted supplier of critical drivetrain and industrial components, leveraging its in-house quality assurance, controlled heat treatment, and integrated machining capabilities to meet the exacting requirements of leading OEMs worldwide. This achievement underscores Liaoyuan’s dedication to technological excellence, operational discipline, and sustainable growth, supporting customers across wind power, thermal power, heavy-duty industrial equipment, and energy systems.

On February 11th, 2026, Liaoyuan New Energy was honored with the Envision Energy Excellence in Business Partnership Award 2025, recognizing the company’s outstanding contributions to Envision Energy and its supply chain in the production of high-reliability planetary gears, gear rings, and shrink disc solutions. Liaoyuan has been a trusted supplier to Envision since 2015, consistently delivering forged and machined components for critical drivetrain systems. In 2025 alone, Liaoyuan supplied over 24,000 metric tons of forged components to Envision Energy, contributing to a total of nearly 70,000 deliveries across all customers that year. This award highlights Liaoyuan’s commitment to scalable Ring Rolled Forgings, Open Die Forgings, and integrated Machined Components, backed by robust in-house quality assurance and flexible production capabilities. It reflects the company’s ability to provide predictable delivery, consistent performance, and long-term partnership value for leading global OEMs in wind power and industrial equipment. Envision Energy Excellence in Business Partnership Award 2025 Liaoyuan continues to leverage its expertise in forged rings, machined rings, and shrink discs to support Envision Energy’s drivetrain platforms and broader industrial applications, reinforcing its role as a reliable partner within global high-performance supply chains.

On February 8, Liaoyuan held its annual year-end conference and Chinese New Year gala, bringing together employees from across the organization to review achievements over the past year and outline strategic goals for the year ahead. The event highlighted not only operational growth, but also the shared commitment and teamwork that drive the company forward. A Year of Measurable Progress During the performance review session, management reported that in 2025, the company’s production volume increased by 40% compared with 2024, with annual revenue reaching RMB 1 billion. The year also marked important milestones in corporate development. Liaoyuan received several notable recognitions, including: Jiangsu Green Factory National Specialized, Sophisticated, Unique, New SME Star-Level Cloud Integration Enterprise Five new invention patents were added, reinforcing the company’s technological capabilities and long-term competitiveness.       Liaoyuan Annual Conference - Master Craftsman Award Presentation Recognizing Teams and Craftsmanship A central part of the event was the awards ceremony, honoring workshops, project teams, and individuals whose efforts contributed to safety, quality improvement, production efficiency, and technical innovation. Forging Workshop – Outstanding Production Performance Team Heat Treatment Workshop – Excellence in Safety Management Team Precision Machining Workshop – Excellence in Quality Management Team Several Machining and Processing Groups – 5S Management Model Teams Innovation project teams were also recognized for measurable improvements in process optimization, grain structure enhancement, inspection quality, and machining efficiency. Among the individual recipients, experienced forging equipment operator Xie Zhaohong was awarded the title of Master Craftsperson, representing the professionalism and technical strength of the forging workshop. Additional honors acknowledged outstanding team leaders, innovation contributors, high-performing new employees, collaborative role models, and long-serving employees who have dedicated more than a decade to the company’s development. Through these recognitions, Liaoyuan reaffirmed that sustainable growth is built by capable teams, disciplined execution, and shared responsibility. Commitment to the Year Ahead During the conference, six project responsibility commitments were formally signed, setting clear objectives for the new year in areas including capacity expansion, revenue growth, material efficiency, machining productivity, equipment reliability, and heat treatment quality enhancement. These commitments reflect a structured approach to continuous improvement and operational excellence in forging, heat treatment, and precision CNC machining. Appreciation and Celebration The evening concluded with a series of lucky draws and a traditional New Year banquet shared among all employees. Festive gifts were presented to express appreciation for a year of dedication and hard work. More than a celebration, the annual gathering served as a reaffirmation of unity and shared purpose. As the company enters a new year of development, Liaoyuan remains committed to strengthening teamwork, advancing technical capability, and building a resilient organization well-positioned to embrace future opportunities and challenges.     Liaoyuan Annual Conference - Master Craftsman Award Presentation     Liaoyuan Annual Conference - Project Recognition Award Presentation     Explore our Seamless Ring Rolling and  CNC Machining capabilities to select the right solution for your heavy-duty mining applications. Contact Our Engineering Team for tailored technical recommendations.

Entering 2026, Liaoyuan has established a clear business outlook, supported by strengthened cooperation and confirmed volume expectations from multiple leading global OEMs across wind power and industrial drivetrain applications.   Based on validated project pipelines and customer planning feedback, one key gearbox OEM has confirmed a planned increase of over 60% in sourcing machined shafts from Liaoyuan.     Actual product photo – Manufactured by Jiangyin Liaoyuan New Energy Co., Ltd.     Within the supplier ecosystem of another leading wind turbine OEM, Liaoyuan is expected to become the second-largest supplier of locking devices and shrink disc solutions, supporting approximately 30% of their related sourcing volume in 2026. Actual product photo – Manufactured by Jiangyin Liaoyuan New Energy Co., Ltd.     To support this growth, the company continues to strengthen its manufacturing readiness across open die forgings, ring rolled forgings, controlled heat treatment, integrated machining, and rigorous in-house quality assurance, ensuring predictable delivery and stable process control.   Looking ahead, Liaoyuan remains committed to scalable customized manufacturing, long-term partnership value, and reliable support for global OEM and Tier 1 customers in wind energy and heavy-duty industrial equipment.  

In 2025, Liaoyuan New Energy achieved the strongest business performance since the company’s founding in 1997. Annual sales reached RMB 1 billion, marking a significant milestone in the company’s long-term development as a manufacturer of high-reliability Forgings for global industrial and energy equipment. This performance was supported not only by sustained market demand, but also by continuous improvements in manufacturing governance, execution discipline, and customer-focused operations across the organization. Strengthened Position within Key Customer Supply Chains Over the past three years (2023–2025), Liaoyuan New Energy has steadily enhanced its position within the supplier networks of multiple leading global OEMs and system integrators: Within the supplier list of Client D – a leading manufacturer of wind power drivetrain systems, Liaoyuan New Energy has ranked among the top two suppliers for critical gearbox components, including forged ring and planetary gear-related parts. For Client S – a leading global manufacturer of large-diameter bearings, the company has become the largest supplier for bearing products above 800 mm and the second-ranked supplier overall for bearing ring solutions. In cooperation with Client E – a leading global wind power equipment supplier, Liaoyuan New Energy has established itself as the No.1 supplier for shrink disc solutions, while also supporting drivetrain systems with forged shaft and ring products. These achievements reflect the company’s ability to deliver consistent quality, stable lead times, and scalable customized production within demanding OEM supply environments. Manufacturing Capability as a Growth Foundation Throughout 2025, Liaoyuan New Energy continued to consolidate its manufacturing foundation across Ring Rolled Forgings, Open Die Forgings, and Forged Blanks, supported by controlled heat treatment and integrated Machined Components for critical interfaces. By combining customized engineering with batch-capable production planning, the company has maintained reliability across a wide range of transmission and structural applications in wind power, energy systems, and heavy-duty industrial equipment. Looking Forward The record performance in 2025 confirms not only market recognition, but also the effectiveness of Liaoyuan New Energy’s governance-driven management approach. Through disciplined self-review, process optimization, and continuous capability reinforcement, the company remains committed to serving global OEM and Tier 1 customers with predictable quality, delivery stability, and long-term partnership value.  

2025 Annual Management Review and Organizational Alignment In January 2026, Liaoyuan New Energy completed its 2025 annual management review, reinforcing the company’s commitment to structured governance, operational transparency, and continuous improvement as a manufacturer of critical forgings for global industrial equipment and power generation systems. The management review covered core operational functions, including production operations, quality control, planning, sales, human resources, and financial management. Each function assessed performance outcomes alongside identified gaps, with a clear focus on manufacturing consistency, execution discipline, and cross-functional coordination for high-reliability transmission components. Forged component under CMM inspection At the company level, executive management conducted an integrated assessment of overall operational performance and organizational effectiveness. Looking ahead to 2026, Liaoyuan New Energy will prioritize the improvement of both production efficiency and organizational work efficiency, supported by strengthened foundational infrastructure. These initiatives aim to enhance process stability, decision clarity, and execution reliability across the manufacturing value chain, supported by scalable customized production, robust in-house quality control systems, and flexible production planning. The review confirmed that 2025 represented the strongest and most stable business performance in the company’s history. Alongside sustained growth, Liaoyuan New Energy further consolidated its manufacturing capabilities, quality systems, and delivery reliability across key products serving applications such as wind power and heavy-duty mechanical systems. Moving forward, the company will continue to operate under a customer-driven and governance-focused management framework. Through disciplined self-review, efficiency enhancement, and infrastructure reinforcement, Liaoyuan New Energy remains committed to delivering predictable quality, stable lead times, and long-term value to OEM and Tier 1 customers worldwide.

On December 25, 2025, an industry forum focusing on key materials and critical components for wind power equipment was held in Jiangyin, Jiangsu Province. The event brought together companies from across the wind power supply chain to discuss practical manufacturing requirements related to material performance, component reliability, and supply coordination. As a manufacturer serving the energy equipment sector, Liaoyuan was invited to participate in the forum and engaged in discussions with representatives from wind turbine OEMs, component manufacturers, and materials suppliers. During the event, industry organizations and participating companies shared insights into renewable energy development trends, wind power equipment manufacturing characteristics, and material technology applications. Several wind power equipment manufacturers outlined their technical considerations for key materials and load-bearing components based on real project requirements, while materials suppliers introduced their product capabilities from an engineering application perspective. During the networking and technical discussion sessions, Liaoyuan focused on topics related to the performance stability, dimensional consistency, and manufacturing reliability of large-scale forged components and seamless rolled rings used in wind power equipment. The company exchanged views with upstream and downstream partners on specific application scenarios and potential technical collaboration. Liaoyuan has long been supplying forged components for the energy and heavy equipment industries, with integrated manufacturing capabilities covering open-die forging, seamless ring rolling, heat treatment, and machining. Participation in this industry forum further strengthened the company’s understanding of evolving manufacturing requirements and material application trends in wind power equipment, supporting future project-specific discussions and engineering collaboration.   This event information is shared for industry exchange purposes.   Related Capabilities: Open-Die Forging · Seamless Ring Rolling · Heat Treatment · Machining

On December 24, 2025, Jiangyin Liaoyuan New Energy Co., Ltd. (“Liaoyuan New Energy”) completed its shareholding reform and officially changed its company name from Jiangyin Liaoyuan Equipment Manufacturing Co., Ltd. to Jiangyin Liaoyuan New Energy Co., Ltd. This milestone reflects the company’s continued commitment to strengthening corporate governance, ensuring long-term operational stability, and supporting sustainable growth across multiple industrial sectors. As part of the overall corporate restructuring, the company’s registered capital was increased from RMB 50 million to RMB 65 million, further supporting long-term operations and the execution of complex industrial projects. With extensive experience in manufacturing precision components for wind power systems, Liaoyuan New Energy has established a solid foundation in quality control, process reliability, and engineering collaboration. Building on this foundation, the company is expanding its capabilities to serve a broader range of industries, including hydropower, thermal power, nuclear power, oil and gas, heavy machinery, and mining equipment, supplying reliable forged and machined industrial components for long-cycle engineering applications. The completion of the shareholding reform and corporate upgrade enhances Liaoyuan New Energy’s ability to manage complex projects, maintain consistent product quality, and support dependable long-term partnerships. It also strengthens the company’s governance structure to better serve global customers in Europe, the Middle East, and other international markets. Looking ahead, Liaoyuan New Energy will continue to focus on its core strengths in precision forging, machining, and industrial engineering, reinforcing its role as a reliable long-term partner for customers across the energy and heavy industry sectors.  

Jiangyin, China – November 2025   Jiangyin Liaoyuan Equipment Manufacturing Co., Ltd. has officially commissioned its fourth forging production line, strengthening its position as a leading custom manufacturer of forged products for the wind power, energy, and heavy equipment industries.   The new line is equipped with advanced ring forging, open-die forging, and  heat treatment systems, enabling the production of large-diameter, high-strength forgings of up to 3 meters in diameter and 5 tons in weight.. Integrated heat treatment and semi-finishing processes provide stable and precise intermediate products for CNC machining and subsequent operations, ensuring consistent quality across the supply chain.    Since entering operation in July, the production line has manufactured 7,100 tons of forgings, significantly enhancing annual capacity and improving delivery responsiveness. Supported by Liaoyuan’s in-house quality assurance system—including CMM measurement, ultrasonic testing (UT), magnetic particle testing (MT), and a full ISO 9001 quality management system—every forging meets rigorous performance and traceability requirements.   Sales Director Xu, Junjun noted: “The launch of our fourth forging line is a major milestone. It improves production efficiency, stabilizes product quality, and allows us to respond more quickly to customer needs across wind power and other industrial machinery sectors.”   Liaoyuan remains committed to supplying high-quality forged components, heat-treated forgings, and precision-machined products, providing global customers with reliable and efficient manufacturing solutions supported by comprehensive inspection capabilities.     On-site equipment photo – Jiangyin Liaoyuan New Energy Co., Ltd.      

To strengthen team cohesion and enrich employees’ work-life balance, Liaoyuan Manufacturing organized a two-day team building retreat to Zhejiang’s scenic Qiandao Lake, held in two groups—August 7–8 and August 14–15, 2025—to ensure full participation for all employees. The staggered schedule ensured that every colleague had the opportunity to fully participate and enjoy the experience. Across both batches, employees shared memorable moments and activities that brought the team closer together. The first day featured the exhilarating Jiulongxi (Nine Dragons Stream) rafting experience. Colleagues teamed up in inflatable rafts, navigating clear, fast-moving waters while laughter, cheers, and splashes echoed through the valley. Beyond the excitement, the activity encouraged mutual trust, quick communication, and cooperation—key elements of strong teamwork. On the second day, the group explored the natural beauty of Qiandao Lake. A boat trip around the scattered islands and a climb to Meifeng Observatory offered breathtaking views of the lake’s crystal-clear waters and lush islands. The calm scenery provided a refreshing break from the busy work routine while giving team members a chance to connect and recharge. A highlight of the retreat was the shared meal featuring Qiandao Lake’s renowned fish head soup. Gathering around the table, colleagues enjoyed delicious local flavors and warm conversations, deepening camaraderie in a relaxed and joyful setting.   The two-batch team building retreat concluded successfully, delivering not only physical and mental relaxation but also meaningful opportunities for bonding and collaboration. All employees of Jiangyin Liaoyuan Equipment Manufacturing returned with renewed energy, stronger unity, and a shared commitment to tackling upcoming challenges together—continuing the journey toward collective success and excellence.   Team Photos       Explore our Seamless Ring Rolling and CNC Machining capabilities to select the right solution for your heavy-duty mining applications. Contact our engineering team for tailored recommendations.  

With the arrival of early spring, community vitality is on the rise. On March 5, Liaoyuan Equipment joined hands with Longsha Village Community Committee, Huashi Experimental Primary School Group, and Huashi Experimental Middle School to launch a joint environmental-protection and public-service activity under the theme “Building a Green Homeland Together.” Our company’s volunteers actively participated, contributing to local ecological efforts and demonstrating our ongoing commitment to corporate social responsibility. Volunteers at Work: Making Our Neighborhood Cleaner During the greenbelt cleaning activity in Longsha Garden residential area, Liaoyuan’s volunteer team took the initiative. Wearing bright volunteer vests and equipped with tongs and trash bags, participants entered bushes and narrow corners to remove long-accumulated debris, fallen branches, and scattered plastic waste.Despite scratched gloves and dusty clothes, everyone worked with persistence—retrieving hidden trash within dense shrubs, coordinating the removal of bulky waste, and contributing their time and energy with dedication. After two hours of focused teamwork, volunteers filled dozens of trash bags, restoring cleanliness to over 100 meters of greenbelt. Local residents expressed appreciation: “It’s great to see companies actively contributing to the community—our environment looks renewed!” Environmental Awareness in Action The event combined environmental learning with hands-on participation. Volunteers joined students to explore an educational exhibition on community eco-initiatives, took part in short environmental lessons, and engaged children through interactive games such as a “Sorting Wheel” to teach proper waste separation.Beyond these activities, the most meaningful experience happened in the field—through real cleanup work, volunteers turned environmental awareness into tangible action, reflecting Liaoyuan’s commitment to sustainable development. Collaboration for a Sustainable Future A representative of Liaoyuan shared:“Sustainability and community service are part of our long-term development vision. This activity not only improved the environment but strengthened our connection with the community. We look forward to expanding cooperation and bringing more positive impact to local development.” The Longsha Village Community Committee also expressed appreciation and emphasized its intention to deepen collaboration with local enterprises, jointly promoting clean, livable, and sustainable urban environments. Liaoyuan volunteers use long tongs to remove litter from the bushes, their bright vests standing out against the green landscape as they work to restore the community’s environment.           Explore our Seamless Ring Rolling and CNC Machining capabilities to select the right solution for your heavy-duty mining applications. Contact our engineering team for tailored recommendations.

Jiangyin, China — February 11th, 2025 On February 11, Huashi Town hosted the 2025 Government–Bank–Enterprise Spring Symposium, bringing together local authorities, financial institutions, and leading companies to explore pathways for high-quality regional development. Mr. SHEN Yan, CEO of Jiangyin Liaoyuan Manufacturing, attended the event as an invited representative of key enterprises, joining town leaders and financial experts to exchange insights and deepen cooperation. Collaborative Development: Strengthening the Ecosystem At the symposium, town officials highlighted Huashi’s steady economic progress in 2024 despite external uncertainties. They emphasized that enterprises remain the foundation of industrial competitiveness and outlined priorities for 2025, including innovation-driven development and improved coordination between government and industry. Financial representatives reaffirmed their commitment to supporting Huashi’s industrial upgrading through more flexible financial tools and improved capital access for local companies. During the discussion session, Shen Yan noted: “Efficient public services and targeted financial support have created favorable conditions for enterprise innovation. Liaoyuan will continue advancing intelligent manufacturing and green transformation, leveraging both technology and financial resources to contribute to Huashi’s development as a modern industrial hub.”   His remarks encouraged further dialogue on financing solutions, policy incentives, and partnership models to drive shared growth.   Government–Bank–Enterprise Synergy: Enabling Innovation The event featured on-site signing of credit cooperation agreements between banks and multiple enterprises, further enhancing Huashi’s innovation ecosystem. As a core manufacturing enterprise in the region, Liaoyuan will deepen bank–enterprise collaboration, applying supportive policies and capital resources to accelerate key projects and improve operational efficiency. Forward-Looking Strategies for Sustainable Growth Before the plenary session, experts from the Bank of China delivered a workshop on exchange rate risk management, offering practical guidance for enterprises involved in global trade. Shen Yan noted that the symposium demonstrated Huashi’s strong commitment to supporting business development and fostering a cooperative environment. He added that Liaoyuan will continue to strengthen its technological capabilities, enhance strategic financial planning, and contribute to the region’s sustainable and high-quality growth. CEO Shen Yan speaks on enterprise innovation and collaboration at the symposium           Explore our Seamless Ring Rolling and CNC Machining capabilities to select the right solution for your heavy-duty mining applications. Contact our engineering team for tailored recommendations.

On October 17, 2024, the 2024 Schaeffler China Supplier Conference was held in Jiading, Shanghai. Liaoyuan New Energy was honored with the Best Delivery Award, recognizing the company's reliable and high-quality supply of large-diameter bearing rings and its commitment to timely delivery. Liaoyuan CEO, Shen Yan, attended the award ceremony.     As a key supplier for Schaeffler China, Liaoyuan has consistently ensured that high-precision bearing rings are delivered according to schedule. The award highlights the company’s operational excellence, supply chain coordination, and customer-focused approach. For many years, Liaoyuan has adhered to a customer-oriented service philosophy, continuously creating value for partners. Receiving the Best Delivery Award not only reflects Schaeffler’s recognition of Liaoyuan’s supply chain management and delivery reliability, but also underscores the trust placed in the company’s capabilities and comprehensive support. Liaoyuan will continue to refine its processes, optimize customer experience, and deliver professional service and exceptional quality to its global OEM partners.   Key words: Bearing Ring, Ring Rolled Forgings, Ring Rolling, Machined Components,

Jiangyin, China — April 24, 2024   A delegation from the Jiangyin Municipal People’s Congress visited Huashi Town for a “Representatives’ Inquiry and Proposal Week” focused on “accelerating the ‘345’ modern industrial cluster development and fostering new quality productive forces.” The delegation’s first stop was Jiangyin Liaoyuan Equipment Manufacturing Co., Ltd., where they inspected the expansion and deep-processing projects for wind power bearing products.   The delegation included Jiangyin Standing Committee Member and Executive Vice Mayor Wang Qi, Municipal People’s Congress Vice Director Xu Chen, Huashi Town Party Secretary Li Yun, and over 50 officials and representatives. Chairman Mr. Shen Yan accompanied the group and presented Liaoyuan’s latest achievements in precision-machined wind power components, forged alloy steel components, and intelligent production upgrades. On-Site Inspection: Capacity Expansion and Advanced Manufacturing At Liaoyuan’s wind power bearing workshop, the delegation observed intelligent production lines and learned about the company’s expansion initiatives. Chairman Shen Yan explained that the “Wind Power Bearing Expansion and Deep-Processing Project” supports China’s dual-carbon strategy and promotes the localization of high-end energy equipment components. By combining forging, CNC machining, heat treatment, and precision grinding, the project enhances production capacity, product precision, and process reliability. “We aim to provide higher-quality localized support for global leading wind turbine manufacturers through technological innovation and advanced manufacturing upgrades,” Shen Yan said. Executive Vice Mayor Wang Qi praised Liaoyuan’s role in the ‘345’ modern industrial cluster, noting: “Liaoyuan sets an example of how technological breakthroughs can drive productivity, demonstrating the potential of Jiangyin’s new quality manufacturing forces.” Dialogue and Collaboration:  Insights for Industrial Progress: During a subsequent symposium with representatives and local officials, discussions focused on strategies to empower industrial clusters through innovation. They commended Liaoyuan’s achievements in green manufacturing and supply chain collaboration. Recommendations included: Strengthening technical breakthroughs: Increase support for critical technologies like offshore wind power mega-bearings. Deepening digital transformation: Integrate industrial internet platforms with with production for smart manufacturing. Optimize ecosystem collaboration: Foster full-chain cooperation to reinforce cluster resilience. Chairman Shen Yan responded: “The delegation’s insights provide invaluable guidance. Liaoyuan will accelerate intelligent upgrades, deepen partnerships with research institutions, and strive for breakthroughs in offshore wind power core components, contributing to the vision of a Green Energy Hub.”   Jiangyin Municipal People’s Congress Delegation Visits Liaoyuan Equipment’s Smart Manufacturing and CNC Production Lines, with Chairman Shen Yan (2nd right) Highlighting Key Technical Innovations.

Ensuring Quality Control and Customer Trust Contents Why Identification and Traceability Matter Identification Throughout the Forging Process Common Identification Methods Traceability Workflow Quality Records and Audits FAQ In the forging industry, product quality is directly linked to corporate reputation and the operational safety of downstream equipment. Product identification and traceability management has therefore become a fundamental component of modern forging quality systems. A structured traceability system acts as a “quality passport” for each forged component, enabling manufacturers and customers to track products throughout the entire lifecycle—from raw material procurement to final delivery. For manufacturers producing critical components such as forged rings, machined rings, and various machined components, a reliable traceability system is essential for both quality assurance and long-term customer confidence. Why Identification and Traceability Matter in Forging Enhanced Quality Control Clear identification ensures inspection status is visible at every stage of production, preventing nonconforming products from entering subsequent processes or shipment. Rapid Root Cause Analysis When quality issues occur, traceability records allow engineers to quickly identify the origin of the issue, whether related to raw material batches, heat treatment operations, or machining stages. Meeting Customer Requirements Industries such as wind power, mining equipment, industrial gearboxes, and construction machinery often require strict traceability documentation for critical forged components. Clear Responsibility Definition Complete traceability records define accountability throughout the manufacturing process and provide objective evidence for quality investigations and dispute resolution. Identification Throughout the Forging Process Raw Material Identification Traceability begins with raw material verification. Incoming materials must be checked for: Material grade Heat number Supplier certificates Inspection approval status After inspection approval, materials are stored according to classification and clearly labeled. During cutting operations, the heat number and material specification are transferred to the billet to ensure traceability continuity. Product Identification During Manufacturing Forged products carry identification information throughout production. Common identification methods include: Steel stamping Engraved markings Metal tags or nameplates Routing cards Typical marking information includes: Heat number Material grade Routing card number Customer product number (when required) Steel stamping identification on forged ring component @ Jiangyin Liaoyuan New Energy Common Identification Methods Used in Forging Identification Method Typical Stage Advantages Steel stamping Forging / rough machining Permanent marking resistant to heat treatment Metal tags Storage and logistics Easy visual identification Routing cards Production tracking Links component to process documentation Nameplates Final delivery Clear customer identification ERP codes Digital tracking Integrated production documentation Traceability Workflow in Forging Manufacturing A structured traceability system allows engineers to reconstruct the entire production history of a forged component. Real Manufacturing Process @ Jiangyin Liaoyuan New Energy Typical reverse traceability chain: Customer feedback Shipping documentation Sales order and contract Production routing card Process records (forging, machining, heat treatment) Inspection reports Material issue records Raw material certificates Supplier information Quality Records and Audits Traceability systems must be supported by standardized documentation management and regular internal audits. Complete traceability records for each batch Controlled document retention periods Daily inspection monitoring Periodic internal quality audits These procedures ensure that traceability management operates effectively across the entire manufacturing process. FAQ: Traceability in Forging Manufacturing 1, What information is typically included in forging traceability? Traceability records typically include heat number, material grade, production routing number, inspection reports, and supplier certification documents. 2, Why is heat number traceability important? Heat numbers link forged components to specific raw material batches, allowing manufacturers to verify material properties and identify potential quality risks. 3, Can traceability be maintained if markings are lost during heat treatment? Yes. Supporting records such as routing cards, process documentation, and inspection reports allow the traceability chain to be reconstructed. 4, Which industries require strict forging traceability? Industries including wind power, rail transportation, mining equipment, and industrial gearbox manufacturing typically require strict traceability documentation. Conclusion As industrial applications become increasingly demanding, product identification and traceability have evolved from optional management practices into essential elements of forging quality assurance systems. A robust traceability system improves internal quality control, supports efficient root cause analysis, and strengthens long-term customer trust. For customers sourcing critical components such as forged rings, machined rings, or other machined components, documented traceability ensures reliability across the entire product lifecycle.       Learn more about our Product Identification and Traceability System used in forging and machining manufacturing.

Our Self-Developed Anti-Deformation Fixture for Large Forged Rings In large-scale forging manufacturing, heat treatment can be considered a double-edged sword. While it significantly improves the mechanical performance of the material, it can also introduce a serious manufacturing risk — deformation. This challenge becomes particularly critical for large-diameter thin-wall bearing rings. For example, a ring with an outer diameter of 3200 mm and a wall thickness of only 120 mm is extremely sensitive to distortion during heat treatment. These components are expensive and have high material value. If deformation exceeds the machining allowance, the entire part may have to be scrapped. To reduce this risk, manufacturers often increase machining allowances or perform secondary reshaping processes. However, these approaches significantly increase cost and extend production cycles. To address this long-standing industry challenge, our engineering team developed and patented an Anti-Deformation Fixture designed to stabilize large bearing rings during heat treatment. The fixture maintains geometric stability during both heating and cooling, significantly reducing deformation and improving heat treatment yield. Why Large Bearing Rings Are Prone to Heat Treatment Deformation For bearing rings with diameters exceeding 2–3 meters, maintaining geometric stability during heat treatment becomes a major engineering challenge. Large diameter combined with relatively thin wall thickness High heat treatment temperatures generating thermal stress Uneven cooling creating tensile stress within the material Non-uniform thermal expansion and contraction As a result, even very small dimensional deviations can become significantly amplified in components with diameters of several meters. Providing structural support during heat treatment to prevent collapse, ovalization, or wave deformation is therefore essential. Our Solution: Temporary Internal Frame Anti-Deformation Fixture To stabilize thin-wall bearing rings during high-temperature heat treatment, we developed a solution based on a temporary internal support frame. Before heat treatment, an adjustable support structure is welded inside the ring. This internal frame allows the component to maintain its geometric shape throughout both heating and cooling stages. Compared with traditional rigid support structures, our patented fixture provides several advantages: Adjustable structure that accommodates thermal expansion and contraction Multi-point support instead of single-point suspension Reduced stress concentration that could affect the material structure Easy removal after heat treatment Key Structural Features of the Fixture System Main Support Unit The main support unit forms the central structural channel, providing rigid support throughout the entire heat treatment process. Its modular design allows adaptation to rings of different diameters. Adjustable Expansion Unit The structure includes internal clearance that allows controlled movement during thermal expansion. This prevents excessive rigid constraints that may introduce secondary stress or reverse deformation. Curved Multi-Point Support Plates Curved support plates distribute load evenly along the inner surface of the ring. This design prevents localized pressure points and reduces the risk of wave-type deformation. Together, these components form a lightweight three-dimensional support framework inside the ring, maintaining geometric stability throughout quenching, heating, and tempering processes. Advantages Compared with Traditional Methods 1. Significant Reduction in Heat Treatment Deformation In practical production, deformation levels are greatly reduced, especially for large-diameter rings commonly used in the wind power industry. 2. Adjustable Structure Prevents Locked-In Stress Traditional rigid frames cannot adapt to thermal expansion at high temperatures. Our adjustable structure allows controlled expansion without restricting the material. 3. Strong Adaptability for Multiple Ring Sizes The modular and detachable design allows the fixture to be used for rings with diameters ranging from Ø1500 mm to Ø3200 mm. 4. Easy Removal Without Affecting Machining The fixture requires only limited welding points at controlled locations. After heat treatment, it can be removed easily, and only minor finishing is required before machining. Typical Applications Wind turbine bearing rings (Yaw Bearing / Pitch Bearing) Slewing rings for construction machinery Large gearbox components such as ring gears Thin-wall ring components used in heavy industrial equipment This solution is particularly suitable for large rings requiring high-performance quenching and tempering with relatively thin wall sections. Conclusion Controlling heat treatment deformation remains one of the key technical challenges in large forging manufacturing. With our self-developed Anti-Deformation Fixture, large bearing rings can maintain excellent geometric stability throughout the entire heat treatment process. This significantly reduces scrap rates and improves manufacturing efficiency. If you are looking for a reliable supplier of large forged rings or bearing rings with controlled heat treatment deformation, feel free to contact our engineering team.

In the manufacturing of heavy-duty forged components, heat treatment is a critical engineering step. For large shafts, forged rings, and structural parts, the selected heat treatment route directly affects mechanical strength, fatigue resistance, machinability, and dimensional stability. In industries such as wind power, mining equipment, heavy gear systems, and industrial machinery, heat treatment is not simply a post-processing step. It is a key process that determines long-term reliability. Below are four heat treatment processes commonly applied to large industrial forgings. 1. Normalizing Normalizing is often used as a stabilization step before machining or further heat treatment. Purpose Refine the grain structure and create a more uniform microstructure throughout the forging. Typical Materials Low and medium carbon steels: C45, 20Cr, 42CrMo4 Alloy steels: 20CrNiMo, 35CrMo, 42CrMo4 Typical Process Parameters Heating temperature: 840–880°C (depending on steel grade) Cooling method: air cooling outside the furnace Process Description The forging is heated above the austenitizing temperature and held long enough for full transformation. It is then cooled in air under controlled conditions. Engineering Benefits Refines grain structure Improves toughness and ductility Reduces microstructural segregation from forging Prepares the material for machining or further heat treatment Technical Challenges for Large Forgings For thick-section shafts and large rings, temperature uniformity inside the furnace is critical. A furnace deviation greater than ±10°C may lead to uneven grain sizes. Large components are therefore typically heated in stages to reduce thermal gradients. 2. Quenching and Tempering Quenching and tempering is widely used for components that operate under high loads, such as large shafts and forged rings. Purpose Achieve high strength while maintaining sufficient toughness. Typical Materials Alloy steels: 42CrMo4, 34CrNiMo6, 35CrMo Typical Process Parameters Quenching temperature: 830–860°C Cooling medium: oil or water depending on material and section thickness Tempering temperature: 550–650°C Process Description After austenitizing, the component is rapidly cooled to form a martensitic structure. The material is then reheated during tempering to reduce brittleness and optimize the balance of mechanical properties. Engineering Benefits High tensile strength Excellent fatigue resistance Improved impact toughness Better dimensional stability after heat treatment Technical Challenges Large-diameter shafts and thick-wall rings are sensitive to thermal stress during rapid cooling. Improper quenching may result in cracking, distortion, or excessive residual stress. 3. Spheroidizing Annealing For components that require extensive machining, such as precision rings or complex structural parts, spheroidizing annealing is an important preparatory heat treatment. Purpose Soften the material and transform carbides into a spherical structure to improve machinability. Typical Materials High carbon steels: C60, C70, 100CrMnMoSi8-4-6 Alloy steels: 42CrMo4, 34CrNiMo6 Structural steels requiring high machinability Typical Process Parameters Heating temperature: 680–720°C Holding time: 8–12 hours Thick components may require up to 24 hours Cooling method: slow cooling inside the furnace Process Description The steel is heated below the critical transformation temperature and held for an extended period, allowing carbides to transform into a spheroidized structure. Engineering Benefits Lower hardness Reduced cutting resistance Longer tool life Improved machining surface quality Technical Challenges The long holding time requires stable furnace temperature control. For large rings, uneven heating may lead to inconsistent hardness distribution, which can affect machining accuracy. 4. Surface Hardening Surface hardening is commonly applied to shafts and rings where working surfaces experience friction or contact stress. Purpose Increase surface hardness while maintaining a tough core structure. Typical Materials Medium carbon steels: 42CrMo4, 40Cr Alloy steels: 35CrMo, 20CrNiMo Typical Process Parameters Surface heating temperature: 840–880°C Induction heating may reach 900°C briefly Cooling medium: water or oil quenching Hardened layer depth: 2–6 mm Common Methods Induction hardening Carburizing Nitriding Engineering Benefits Improved wear resistance Higher contact fatigue strength Strong surface with a tough core Technical Challenges The depth of the hardened layer must be carefully controlled. Too deep may increase cracking risk, while too shallow may reduce wear resistance. For large rings, induction coil design and heating uniformity are particularly important. Heat-treated Products Manufactured by Jiangyin Liaoyuan    Heat Treatment: A Critical Engineering Process In heavy industrial forging, heat treatment is far more than a simple heating and cooling procedure. It is a key process that determines mechanical performance, fatigue life, and machining feasibility. For large shafts and ring forgings, the main engineering challenges include: Temperature uniformity in thick sections Controlling cooling rates to prevent cracking Maintaining dimensional stability during phase transformation Balancing strength and machinability In large-diameter or thick-wall components, even small temperature deviations can create internal stress gradients that affect final dimensional accuracy and performance. Industrial heat treatment capability therefore depends not only on furnace size, but also on process control expertise and experience with large forgings. In our next article, we will discuss how deformation can be controlled during the heat treatment of large bearing rings and introduce our Anti-Deformation Fixture system, developed to improve dimensional stability during heat treatment.

In heavy-duty mining equipment, large girth gears are critical components that endure extreme loads, frequent vibrations, and harsh operating conditions. The choice of manufacturing method—forging versus casting—directly impacts durability, fatigue life, and reliability. While cast gears are common in some industries, large-scale mining applications often demand the superior structural integrity offered by forged rings. Advantages of Forged Gears: Fiber Flow and Structural Integrity Conceptual illustration generated for reference   During forging, the metal undergoes plastic deformation, aligning its internal grain structure along the principal load paths. This results in fiber flow that follows the shape of the girth gear, significantly enhancing resistance to fatigue and impact. Enhanced fatigue performance: Aligned fibers reduce crack initiation and propagation. Improved impact resistance: Forged gears can withstand sudden shocks. Dimensional stability: Forging reduces internal voids and segregations, providing a uniform, dense microstructure. In mining applications, where machined components are subjected to repeated heavy loads, these structural advantages translate directly into longer service life and fewer unplanned downtimes. Limitations of Cast Gears: Internal Defects and Fatigue Risks Conceptual illustration generated for reference   Cast girth gears are prone to internal defects such as porosity, shrinkage cavities, and slag inclusions. Even when machining yields precise external dimensions, these hidden flaws can significantly reduce fatigue life and increase the risk of failure under high cyclic loads. Porosity and shrinkage: Create stress concentrators accelerating crack propagation. Non-uniform microstructure: Leads to inconsistent mechanical properties across the section. For machined rings and other critical gear components in mining drives, such weaknesses can compromise reliability, particularly under high-load, high-vibration scenarios. Impact of Load Conditions on Gear Reliability Mining equipment frequently operates with fluctuating torque, high radial loads, and shock events from material handling. Forged gears maintain structural integrity and resist deformation. Cast gears may suffer from early fatigue cracks, reducing maintenance intervals and increasing replacement costs. Selecting forged rings ensures that the internal structure supports repeated high loads, critical for machined components within planetary gear trains and heavy-duty transmissions. Summary: Forging for Long-Term Reliability While casting may suffice for smaller or lower-stress applications, forged girth gears offer unmatched reliability for mining and other heavy-duty industrial equipment. Optimized fiber flow, internal integrity, and impact resistance make them the preferred choice where machined components must endure extreme cyclic loading. For mining equipment OEMs and maintenance engineers, investing in forged components can: Reduce fatigue-related failures Extend service life of machined rings and gear assemblies Ensure predictable performance under demanding conditions Explore our Forged Rings and  Machined Components capabilities to select the right solution for your heavy-duty mining applications. Contact our engineering team for tailored recommendations.

Introduction: Why Forged Shafts Matter Forged shafts are critical components in heavy industrial machinery. They transmit torque and support rotating elements in systems ranging from wind power gearboxes to heavy-duty drives. A common misconception is that simply increasing shaft size or material strength guarantees reliability. In reality, performance depends on a combination of structural design, material selection, manufacturing precision, and quality control. Key takeaway: Understanding engineering requirements and application context ensures the right shaft selection, balancing durability and reliability.   Conceptual illustration generated for reference   Classification by Shaft Structure and Load Type 1. Solid Shafts Solid shafts provide high fatigue strength and uniform structural integrity. Typical applications include planet shafts, sun shafts, and heavy-duty drive shafts. From an engineering perspective, straightness, coaxiality, and controlled grain flow are critical to prevent fatigue-related failures. Core point: Solid shafts excel where fatigue resistance and structural consistency are required. 2. Hollow / Tube Shafts Hollow shafts reduce overall weight while maintaining torsional rigidity, making them suitable for motor shafts and low-speed turbine shafts. Wall thickness uniformity, roundness, and consistent heat treatment are essential to ensure stable performance. Core point: Hollow shafts balance weight savings with reliable rotational performance. 3. Step / Shoulder Shafts Step or shoulder shafts allow mounting of gears or bearings but introduce stress concentrations at geometric transitions. Proper grain flow alignment and stress-relief machining are essential for fatigue resistance. Core point: Step shafts require careful design to combine versatility with durability. 4. Splined / Keyed Shafts Splined or keyed shafts enable precise torque transfer through mechanical interfaces, commonly used in coupling and output shaft applications. Core point: These shafts ensure controlled torque transmission in complex drive systems. Classification by Function and Application Transmission Shafts: Transfer power within gearboxes and heavy-duty drives. Gear Shafts: Support gears and maintain rotational accuracy. Motor / Generator Shafts: Deliver rotational power from motors or generators. Turbine Shafts: Handle high-speed torque input and output. Pump & Valve Shafts: Drive pumps and valves in fluid control systems. Key takeaway: Structure-based and function-based classifications complement each other, guiding proper forged shaft selection. Conceptual illustration generated for reference   Key Engineering Considerations Across Shaft Types Size vs Strength vs Precision: Oversizing cannot compensate for poor material or geometry. Material & Heat Treatment: Selected for fatigue life, toughness, and stability. Dimensional Accuracy: Straightness and coaxiality directly affect service life. Inspection Challenges: UT, dimensional checks, and metallurgical analysis are essential. Core point: Precision engineering and robust quality control are fundamental to reliable industrial forged shafts. Advantages of Forged Shafts Superior fatigue strength and long-term durability Consistent internal structure with fewer defects Reliable performance under cyclic and heavy loads Broad applicability across energy, mining, and heavy industry Core point: Forged shafts deliver predictable performance where reliability and safety are critical. Conceptual illustration generated for reference   Conclusion Forged shafts vary significantly by structure and function, directly influencing reliability and operational safety. Proper material selection, precise geometry, and strict inspection standards are essential. Core point: Forged shafts are more than mechanical parts—they are essential elements of dependable industrial power transmission. | Explore our Forged Shafts Capabilities page If you are preparing to request a quotation for custom forged shafts or rings, refer to our detailed guide on What Information Is Required to Quote a Custom Forged Shaft or Ring to ensure a smooth and accurate inquiry.

In modern wind turbines, the gearbox remains one of the most mechanically demanding subsystems. Despite the continuous increase in turbine size and rated power, many gearbox failures are still linked not to component dimensions, but to material selection, internal structure, and manufacturing quality of critical forged parts. Forged shafts, gears, bearing rings, and structural rings form the load-bearing core of wind power gearboxes. Understanding why material integrity and structural design outweigh nominal size is essential for engineers, sourcing teams, and project managers involved in wind energy systems. Operating Conditions Inside Wind Power Gearboxes   Wind turbine gearboxes operate under conditions that differ significantly from conventional industrial transmissions. They are exposed to highly fluctuating loads, long-term cyclic fatigue, and frequent load reversals caused by variable wind conditions. At the same time, gearboxes must deliver reliable performance over service lives of 20–25 years, often in offshore or remote environments where maintenance access is limited. These factors place exceptional demands on the fatigue strength, toughness, and dimensional stability of forged components. Key Forged Components in Wind Power Gearboxes Forging plays a central role in manufacturing the primary load-carrying components inside wind turbine gearboxes, including: Planetary shafts and planetary gears transmitting torque under complex load paths Sun shafts and sun gears subjected to concentrated stresses Intermediate and high-speed shafts requiring high straightness and surface integrity Bearing rings and cages supporting heavy radial and axial loads Structural forged rings used for load support and positioning within the gearbox Although their geometries differ, all these components rely on forged microstructures capable of resisting fatigue, crack initiation, and long-term degradation. Material Selection: Beyond Strength Values Material selection for wind gearbox forgings goes far beyond nominal strength requirements. Alloy steels used in these applications must balance fatigue resistance, low-temperature toughness, and sufficient hardenability for large cross-sections. For medium to large forgings, inadequate hardenability can result in non-uniform mechanical properties across the section. Even when external dimensions meet specification, internal inconsistencies—such as segregation or non-metallic inclusions—can significantly reduce service life under cyclic loading. In wind power applications, material consistency and cleanliness often matter more than achieving the highest possible tensile strength. Internal Structure and Grain Flow The internal structure of a forged component is as critical as its external geometry. Proper forging deformation promotes grain flow aligned with principal stress directions, reduces internal defects, and improves resistance to crack propagation. For shafts and gears, axial grain flow enhances fatigue performance along the load path. For forged rings, circumferential grain orientation improves resistance to hoop stresses and rotational fatigue. Components produced with insufficient deformation may meet dimensional requirements but still fail prematurely due to unfavorable internal structure. Manufacturing Challenges of Large Forged Components Producing medium to large forged components for wind gearboxes presents several challenges, including deformation control during forging, dimensional stability after heat treatment, and residual stress management. Large cross-sections are particularly prone to distortion during quenching and tempering. Without careful process control, straightness, roundness, and concentricity can deviate beyond acceptable limits, increasing machining effort or rejection risk. This is why forging and machining capabilities must be considered as an integrated process rather than separate steps. Heat Treatment and Quality Verification Heat treatment is an integral part of forging quality in wind power applications. Depending on component type and service conditions, processes may include normalizing, quenching and tempering, and stress relieving. Verification is equally important. Typical quality assurance for wind gearbox components combines ultrasonic testing, dimensional inspection, and mechanical testing to ensure that internal quality matches external specifications and design intent. Why Size Alone Is Not a Reliability Indicator In wind power gearboxes, component size is driven by torque requirements and system layout. However, larger dimensions alone do not guarantee improved reliability. A properly engineered forged component—with optimized material selection, grain flow, heat treatment, and dimensional control—can outperform a larger but less controlled alternative. Long-term reliability in wind energy transmission systems is achieved through consistency and process control, not oversizing. Conclusion Forged components remain fundamental to the performance and reliability of wind power gearboxes. While turbine ratings continue to increase, gearbox durability depends far more on material integrity, internal structure, and manufacturing discipline than on nominal size alone. Selecting suppliers with proven experience in forged components for wind energy—supported by integrated forging, heat treatment, and machining capabilities—helps ensure long-term gearbox reliability in demanding operating environments. References IEC 61400-4: Wind Turbines – Part 4: Design Requirements for Wind Turbine Gearboxes, IEC DNV-ST-0361: Certification of Wind Turbines, DNV ISO 6336 (All Parts): Calculation of Load Capacity of Spur and Helical Gears, ISO ASM Handbook, Volume 14: Forming and Forging, ASM International ASM Handbook, Volume 19: Fatigue and Fracture, ASM International ASTM A788 / A788M: Steel Forgings – General Requirements, ASTM International   Disclaimer: Some images on this page are conceptual illustrations generated for reference and may not represent actual delivered products.