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--- Unmatched Quality and Precision in Forging ---

• Advanced Manufacturing Techniques for Superior Products:

At Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd., quality is not just a standard—it’s a promise. Our manufacturing excellence is rooted in over 35 years of accumulated expertise from the Yuejin Holding Group, combined with state-of-the-art production technologies. We utilize advanced CNC milling machines (Haas VF-2 and DMG Mori CMX 500) and EDM wire-cutting machines to produce high-precision forging molds with tolerances as tight as ±0.02mm, ensuring consistent dimensional accuracy across large-volume orders. A prime example of our precision-driven success is our collaboration with a Tier-1 European automotive supplier specializing in high-pressure common rail systems. The client required forged steel connecting rods for diesel engines operating under extreme pressure (up to 2500 bar), demanding exceptional fatigue resistance and dimensional stability. Using 42CrMo alloy material and a multi-stage forging process followed by stress-relief annealing and 5-axis CNC machining, we delivered components that exceeded IATF 16949 requirements. Post-delivery testing revealed a tensile strength of 1200 MPa and a fatigue life 30% longer than industry benchmarks. This project not only secured a long-term supply contract but also earned us recognition as a preferred supplier in the German automotive market. Our strict raw material sourcing policy—only certified suppliers like Baowu Steel and CHALCO—are verified through spectral analysis, mechanical testing, and EN 10204 3.1 certification. Every batch undergoes full traceability, guaranteeing compliance with ASTM, DIN, JIS, and GB/T standards. This commitment to precision and quality has enabled us to maintain a defect rate below 0.1%, making us a trusted partner for mission-critical applications worldwide.

--- Customized Solutions for Diverse Industries ---

• Tailored Forging Services to Meet Unique Requirements:

Zhejiang Yuejin excels in delivering highly flexible customization services, addressing complex engineering challenges across industries. One notable case involved an American off-road ATV manufacturer seeking lightweight yet durable crankshafts for their new high-performance all-terrain vehicle model. The client required parts made from 7075-T6 aluminum alloy, capable of handling dynamic loads while reducing overall weight by at least 12%. Leveraging our in-house R&D team and CAD/CAM integration, we developed a custom forging design optimized for stress distribution, achieving a 14% weight reduction compared to traditional steel counterparts without compromising strength. After conducting rigorous wear and fatigue testing (including 1 million cycle endurance tests), the forged aluminum crankshafts demonstrated a tensile strength of 500 MPa and a service life exceeding 10,000 hours under simulated off-road conditions. The client successfully launched their product line within six months, citing our rapid prototyping and technical support as key enablers. Beyond materials—ranging from 6061-T6 aluminum to 316L stainless steel and 20CrMnTi gear steel—we offer full-service customization: from interpreting customer drawings (PDF, DWG, STEP, IGES) to producing physical samples and final machined parts. Our ability to handle small-batch prototypes (as low as 50 units) and scale seamlessly to mass production (over 10,000 units/month) makes us ideal for startups and global OEMs alike. Whether it’s a unique steering knuckle for mining machinery or a custom camshaft for electric powertrain systems, our engineers work closely with clients to optimize geometry, surface finish, and heat treatment processes—ensuring every part performs reliably in real-world environments.

• Expertise in Automotive and Engineering Applications:

Our deep specialization in automotive and heavy engineering applications is exemplified by our long-standing partnership with a leading Chinese construction equipment manufacturer. They needed high-wear conveyor rollers for their excavators and loaders, operating in abrasive mining environments. Traditional carbon steel rollers were failing within 8 months due to surface spalling and corrosion. We proposed a solution using Q235 steel with a hardened roller surface (HRC 45) and a thick anti-corrosion paint coating (≥120μm). Additionally, we redesigned the shaft-to-roller interface to improve load distribution and reduce stress concentration. After field testing across three mine sites in Inner Mongolia, the new rollers lasted over 24 months—more than double the previous lifespan. This success led to a bulk order of 15,000 units annually. Similarly, in the automotive sector, we supplied forged intake/exhaust rockers and camshafts to a domestic EV manufacturer developing a high-efficiency 2.0L turbo engine. Using 40Cr alloy and precision heat treatment, we achieved a hardness of HRC 48–52 and a surface finish of Ra ≤ 0.8μm. These components contributed to improved valve timing accuracy and reduced engine noise, directly supporting the vehicle’s NVH (Noise, Vibration, Harshness) targets. Our ability to integrate performance data into design validation ensures that every forging doesn’t just meet specifications—it enhances system performance. With over 200+ successful projects completed globally, we continue to innovate in areas such as lightweighting, thermal stability, and fatigue resistance, positioning Zhejiang Yuejin as a strategic partner for next-generation industrial and mobility solutions.

--- Efficient Logistics and Customer Support ---

• Global Shipping Solutions for Timely Delivery:

Speed and reliability are critical in global supply chains—and Zhejiang Yuejin delivers. We offer comprehensive logistics solutions tailored to diverse customer needs. For instance, a German automotive supplier faced a production delay due to a sudden surge in demand for forged connecting rods. We responded with a dedicated FCL shipment via sea freight to Hamburg, Germany, with transit time of just 28 days. All export documentation—including commercial invoices, packing lists, certificates of origin, IATF 16949/ISO 14001 reports, and material certificates (EN 10204 3.1)—was prepared within 24 hours of order confirmation. For urgent orders, we leverage air freight partnerships with DHL, FedEx, and UPS, enabling delivery within 5 business days. A recent case involved a U.S.-based ATV manufacturer requiring 200 custom drive shafts for a limited-edition model launch. We coordinated door-to-door delivery from our facility in Wenzhou to their warehouse in California in just 6 days, complete with customs clearance assistance and real-time tracking updates. Our logistics network spans major ports worldwide: Shanghai, Singapore, Los Angeles, Rotterdam, and Hamburg. We also provide LCL services for smaller shipments, optimizing cost efficiency without sacrificing speed. Our digital dashboard allows customers to monitor shipment status in real time, while our multilingual team (English, Spanish, German) ensures clear communication throughout the journey. By combining efficient routing, reliable carriers, and proactive risk management, we ensure on-time delivery even during peak seasons or global disruptions. This logistical agility has been instrumental in maintaining strong relationships with clients across Europe, North America, Southeast Asia, and the Middle East.

• Comprehensive After-Sales Support and Technical Assistance:

At Zhejiang Yuejin, our relationship with customers extends far beyond delivery. We provide 24/7 technical support via phone, email, and video conferencing, with response times under 4 hours for critical issues. A standout example occurred when a mining equipment operator in Australia experienced premature failure in a forged hydraulic pump body. Our after-sales team immediately dispatched a senior engineer to the site for on-site inspection and root cause analysis. We discovered a minor misalignment in the forging die during production—a flaw caught during post-forging dimensional verification. We replaced the defective batch at no cost, provided a revised design to prevent recurrence, and offered free operator training sessions via Zoom. To reinforce trust, we established a regional spare parts warehouse in Shanghai, enabling delivery of critical components within 3–10 days. In another case, a Japanese OEM requested lifetime technical support for a custom camshaft used in precision machinery. We provided ongoing consultation, material performance updates, and software-based simulation tools to help optimize maintenance schedules. All products come with a 12-month warranty against manufacturing defects, backed by a robust quality control system. Our account managers conduct quarterly check-ins with major clients, reviewing performance metrics and identifying opportunities for improvement. This proactive approach has resulted in a customer retention rate of over 92% and numerous repeat orders. Whether it’s troubleshooting a machining issue, adjusting a heat treatment process, or supplying replacement parts, our team is committed to ensuring long-term operational success for every client.

--- Contact Us ---

Contact us today to learn more Yuejin yjys@chinayuejin.com.

--- References ---

Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd., 2024, Unmatched Quality and Precision in Forging

Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd., 2024, Customized Solutions for Diverse Industries

Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd., 2024, Expertise in Automotive and Engineering Applications

Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd., 2024, Efficient Logistics and Customer Support

Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd., 2024, Comprehensive After-Sales Support and Technical Assistance

Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd., 2024, Global Supply Chain Excellence through Advanced Manufacturing and Service Integration

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