In Dingxiang, Shanxi—known as the “Forging Capital of China”—a company centered on forging manufacturing is steadily advancing to the forefront of its industry: Shanxi Chengyu Forging Co., Ltd. Since its establishment in 2008, the company has earned a strong reputation across sectors such as petrochemicals, shipbuilding, and wind‑energy new energy, thanks to its expert forging technologies and exceptional product quality, cementing its position as an industry benchmark.

I. Deeply cultivating the forging sector, with technological prowess forging core competitiveness.

Shanxi Chengyu Forging Co., Ltd. is located in the Jiulongwan Industrial Zone of Shacun, Dingxiang County. The company operates a modern 15,000-square-meter production base equipped with CNC lathes, magnetic particle flaw detectors, coal-fired induction heat‑treatment furnaces, and other specialized machinery, forming an integrated manufacturing system that spans sawing, forging, heat treatment, machining, and physicochemical testing. With an annual production capacity of 8,000 tons, the company aims to exceed RMB 100 million in sales by 2025. Its product portfolio includes ring components, flanges, tube sheets, and shaft‑type parts made from carbon steel, stainless steel, alloy steel, and other materials, compliant with both international and domestic standards such as ANSI, DIN, and GB.

Technology is the cornerstone of corporate development. Through sustained R&D investment, Chengyu Forging has mastered a number of core manufacturing processes: in flange production, its necked slip‑on and butt‑welded flanges achieve industry‑leading dimensional accuracy; in the fabrication of large forgings, it employs a combined process of segmented forging and heat treatment, effectively mitigating internal residual stresses in high‑alloy steel components. The company’s physicochemical testing laboratory is equipped with spectrometers, ultrasonic flaw detectors, and other advanced instruments, enabling end-to-end quality traceability for every production batch and ensuring a long‑term product pass rate consistently above 99.5%.

II. Innovation-Driven Development: Patent Technologies Spearhead Industry Upgrading

Innovation is the core driving force behind Chengyu Forging. As of 2024, the company has obtained five utility‑model patents. Among them, the patent for “a forming die with excellent sealing performance” optimizes the die’s structural design, raising the machining accuracy of the flange sealing surface to 0.02 mm—40% higher than the industry standard. Another patent, “a waste‑heat recovery system for large forgings,” recovers forging waste heat for preheating, reducing the energy consumption per part by 15%. These technological advances have not only boosted production efficiency but also accelerated the industry’s transition toward green manufacturing.

The company is actively advancing digital transformation by implementing an ERP production management system and an MES shop-floor execution system, enabling end-to-end digital control across the entire process—from order intake and production scheduling to quality inspection. In the “Annual Processing Capacity of 5,000 Tons of Forged Flanges” project launched in 2025, the company has invested RMB 20 million to introduce intelligent ring‑rolling machines and automated machining centers, reducing the production cycle per unit by 30% and cutting labor costs by 25%.

III. Quality Builds the Brand; International Certifications Open Up Global Markets

Quality is the lifeline of Chengyu Forging. The company has successively obtained ISO 9001 certification, TÜV product certification, and PED (Pressure Equipment Directive) certification, with its products exported to more than 20 countries and regions, including Germany, the United States, and Japan. In the petrochemical sector, its sulfur‑resistant flanges have been successfully deployed in Sinopec’s Puguang Gas Field project, maintaining reliable sealing performance even at low temperatures as low as –46°C. In shipbuilding, the DN2000 stainless steel flanges supplied to Jiangnan Shipyard have passed DNV classification society certification, meeting stringent long‑term corrosion‑resistance requirements for marine environments.

The company has established a full‑cycle service system encompassing “pre‑sales technical consulting, in‑sales process tracking, and 24‑hour after‑sales response,” with offices set up in key industrial hubs such as Liaoning, Shandong, and Guangdong to provide localized support to customers. In 2023, when a wind‑power enterprise faced an urgent equipment failure, the Chengyu Forging technical team swiftly devised a solution overnight and delivered a custom‑made flange within 48 hours, helping the customer avert losses exceeding several million yuan and earning the title of “Strategic Partner.”

IV. Upholding Social Responsibility and Embracing Green Development to Demonstrate Corporate Commitment

As a vice‑presidential unit of the Dingxiang County Forging Industry Association, Chengyu Forging actively promotes the industry’s move toward standardized development. The company participated in drafting the group standard “Evaluation Specification for Green Factories in the Forging Industry,” and spearheaded the development of a forging fume‑purification device that has reduced workshop dust concentrations to below 8 mg/m³—a 60% improvement over the national standard. In terms of energy conservation and emissions reduction, its waste‑heat recovery system cuts annual standard coal consumption by 1,200 tons, earning the company the title of “Green Manufacturing Demonstration Enterprise” from Xinzhou City.

The company places great emphasis on talent development and the transmission of technical expertise, having established an industry–university–research collaboration base with a leading university. Each year, it allocates RMB 500,000 to employee skills training. Currently, among its 125 employees, senior technicians account for 40%, fostering a talent pipeline characterized by mentorship and knowledge transfer. In 2023, the company was recognized as a “Model Enterprise for Harmonious Labor Relations in Shanxi Province,” and its chairman, Yan Pengwei, was named a “Model Worker of Dingxiang County.”

Looking ahead, Shanxi Chengyu Forging Co., Ltd. will continue to uphold its corporate spirit of “uniting hearts and minds to forge premium products, innovating and breaking new ground for the future.” Driven by technological advancement and anchored in quality‑focused service, the company will deepen its expertise in the high‑end equipment manufacturing sector, delivering superior forgings and comprehensive solutions to customers worldwide, and steadily advancing toward its vision of “building a century‑long legacy at Chengyu and becoming a benchmark in forging.”