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--- 1. Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd. ---

• 1.1 Company Overview:

Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd., established in 2006 as a core subsidiary of Yuejin Holding Group, has built a formidable reputation in the global non-ferrous metal forging industry over the past 18 years. With nearly three decades of accumulated expertise from its parent group, Yuejin has evolved into a vertically integrated manufacturer specializing in precision forgings for automotive, engineering, mining, and recreational vehicle sectors. Based in Rui'an City, Zhejiang Province, China, the company operates a state-of-the-art facility equipped with advanced CNC milling machines, EDM wire-cutting systems, and automated forging lines. The company serves clients across Europe, North America, Southeast Asia, and the Middle East, consistently delivering high-performance components such as intake/exhaust rockers, crankshafts, connecting rods, camshafts, steering knuckles, conveyor rollers, and high-pressure common rails. A standout example of their real-world impact involves a German automotive OEM that faced repeated failures in their high-pressure fuel injection systems due to material fatigue. After switching to Yuejin’s 7075-T6 aluminum alloy forged common rail components—engineered with strict dimensional tolerances (±0.05mm) and tested under 2500bar pressure—the client reported zero field failures over two consecutive production cycles. This case not only validated Yuejin’s technical capabilities but also led to a long-term supply contract worth over €2.8 million annually. Their commitment to innovation, quality, and customer-centric solutions continues to position them as a trusted partner for industrial leaders worldwide.

--- 2. Advantages of Choosing Yuejin ---

• 2.1 Cutting-Edge R&D Capabilities:

Zhejiang Yuejin leverages over 35 years of collective R&D experience from the Yuejin Holding Group, enabling it to lead in design innovation and performance optimization. The company’s internal R&D team specializes in developing custom forging solutions tailored to extreme operating conditions. One notable success story involved an Australian mining equipment manufacturer struggling with premature wear on their hydraulic pump bodies used in underground tunneling operations. Yuejin engineers conducted a root cause analysis using finite element modeling (FEM) and proposed a redesign using 42CrMo steel with enhanced surface hardening via induction heating. The new component achieved a hardness of HRC 52–56 and demonstrated a 300% increase in service life during field testing. Additionally, Yuejin’s use of Haas VF-2 and DMG Mori CMX 500 5-axis CNC machining centers ensures complex geometries are produced with a positioning accuracy of ±0.005mm, critical for parts like synchronizer hubs and gear shafts. These capabilities were instrumental in helping a Japanese transmission supplier reduce assembly defects by 45% after adopting Yuejin’s precision-machined input shafts. The integration of digital twin technology and real-time process monitoring further enhances product consistency and reduces development time by up to 60%, making Yuejin a preferred choice for companies demanding both innovation and reliability in high-stakes applications.

• 2.2 Customization Services:

Yuejin excels in offering highly flexible customization services, catering to both standard and non-standard requirements across diverse industries. Their three-tiered service model—blank forging, finished machining, and full custom design—ensures seamless collaboration with clients at every stage. A prime example comes from a U.S.-based ATV manufacturer seeking lightweight yet durable suspension components for off-road racing vehicles. Using customer-provided CAD files (in STEP format), Yuejin designed and produced aluminum alloy (7075-T6) steering knuckles with optimized stress distribution, reducing weight by 12% while maintaining tensile strength above 500 MPa. The final product passed rigorous vibration and impact tests simulating 10,000 km of off-road use. Another case involved a South Korean construction equipment firm needing custom conveyor rollers for harsh desert environments. Yuejin developed Q235 steel rollers with a hardened surface (HRC 42–45) and epoxy-polyurethane coating, increasing resistance to abrasion and corrosion. The solution reduced maintenance costs by 58% and extended operational lifespan by over 2.5 times. With support for multiple file formats—including PDF, DWG, IGES—and physical sample reverse engineering, Yuejin enables rapid prototyping and short lead times. Their ability to handle complex specifications—from materials (aluminum, steel, copper, stainless steel) to dimensions (length: 10–1000mm, diameter: 5–200mm)—makes them ideal for OEMs and Tier-1 suppliers requiring agile, scalable manufacturing partners without compromising on quality or delivery timelines.

--- 3. Quality Assurance in Manufacturing ---

• 3.1 Premium Materials Used:

At the heart of Yuejin’s manufacturing excellence lies its unwavering commitment to sourcing premium-grade raw materials from globally recognized certified suppliers. The company exclusively partners with industry giants such as Aluminum Corporation of China (CHALCO), Baoshan Iron & Steel Co., Ltd. (Baowu Steel), and Jiangsu Shagang Group, ensuring traceability and consistency. Every batch of incoming material undergoes stringent inspection protocols, including spectral analysis using optical emission spectrometers (OES), mechanical property testing (tensile strength, elongation, hardness), and dimensional verification with laser measuring systems. For instance, when producing 316L stainless steel brake calipers for a European electric vehicle (EV) manufacturer, Yuejin conducted chemical composition checks against ASTM A240 standards and confirmed a chromium content of 16.5–18.5% and nickel content of 10–14%, meeting the exacting requirements for corrosion resistance in marine environments. Similarly, all 40Cr and 42CrMo steel forgings are tested for grain structure and microhardness to prevent cracking during heat treatment. In another case, a Brazilian mining client experienced frequent fractures in their drive shafts due to impurities in the base material. Yuejin replaced the supplier and implemented a dual-inspection system: one pre-forging and one post-heat treatment. This resulted in a 99.7% defect-free rate across 12,000 units delivered. Furthermore, all materials comply with international standards including DIN (Germany), JIS (Japan), and GB/T (China), allowing seamless integration into global supply chains. This level of material integrity ensures that every forging performs reliably under extreme pressure, temperature, and wear conditions, reinforcing Yuejin’s status as a quality-driven leader in the non-ferrous forging sector.

• 3.2 Advanced Manufacturing Processes:

Zhejiang Yuejin employs cutting-edge manufacturing technologies to ensure precision, durability, and efficiency in every forging. The company utilizes Haas VF-2 and DMG Mori CMX 500 4/5-axis CNC machining centers capable of handling complex 3D geometries with a positioning accuracy of ±0.005mm and repeatability within ±0.003mm. These systems are integral in producing high-tolerance components such as camshafts and synchronizer hubs for high-performance transmissions. For example, a German auto parts supplier required camshafts with a profile tolerance of ±0.01mm for a new turbocharged engine platform. Yuejin achieved this through adaptive toolpath programming and real-time feedback loops, resulting in a 99.9% pass rate in final inspection. Additionally, the company integrates advanced processes like wear testing, where critical components such as gears and bearings are subjected to accelerated life cycle simulations under load and friction. One case involved a heavy-duty mining machinery client whose gearboxes failed prematurely due to surface fatigue. Yuejin redesigned the gear teeth using optimized tooth profiles and applied a nitriding process, followed by 100-hour wear testing on a tribometer. The improved gearset lasted over 1,200 hours—more than double the previous lifespan. The use of EDM wire-cutting machines ensures flawless mold cavity creation for forgings, achieving surface finishes down to Ra 0.4μm. Combined with IATF 16949 and ISO 14001 certifications, these processes guarantee consistent quality, minimal scrap rates (<0.8%), and sustainable production practices. As a result, Yuejin delivers not just parts—but engineered solutions that enhance performance, longevity, and return on investment for their clients worldwide.

--- 4. Efficient Logistics and Delivery ---

• 4.1 Sea and Air Freight Options:

Zhejiang Yuejin offers robust logistics solutions tailored to global demand, combining cost-efficiency with speed and reliability. The company provides both FCL (Full Container Load) and LCL (Less than Container Load) sea freight services to major international ports, including Hamburg (Germany), Los Angeles (USA), Singapore, Shanghai (China), and Rotterdam (Netherlands). Transit times range from 7–15 days for regional Asian routes and 20–35 days for transatlantic shipments, depending on destination and vessel schedules. For urgent needs, Yuejin partners with DHL, FedEx, and UPS to offer air freight delivery within 3–7 days, ideal for emergency spare parts or prototype deliveries. A compelling real-world example occurred when a Mexican automotive plant faced a production halt due to a defective high-pressure common rail injector. Yuejin responded within 24 hours, shipped a replacement part via DHL Express, and delivered it to the client’s facility in Guadalajara within 5 days—minimizing downtime and saving the client an estimated $180,000 in lost output. To support smooth customs clearance, Yuejin provides comprehensive export documentation, including commercial invoices, packing lists, certificates of origin, IATF 16949/ISO 14001 compliance reports, EN 10204 3.1 material test certificates, non-wood packaging declarations, and customs declarations. This end-to-end documentation strategy has enabled clients in the EU and North America to clear customs without delays. Moreover, the company offers door-to-door logistics, covering inland transportation and final delivery to customer facilities. With a strategic spare parts warehouse in Shanghai, critical components can be dispatched within 3–10 days globally, ensuring uninterrupted operations even in remote regions. These logistics capabilities make Yuejin a dependable partner for businesses requiring fast, secure, and transparent international shipping.

--- 5. Exceptional Customer Support ---

• 5.1 Pre-Sales and In-Sales Services:

Zhejiang Yuejin stands out in the industry with its multilingual, proactive, and technically proficient customer service team. The pre-sales team, fluent in English, Spanish, and German, responds to inquiries within 24 hours and provides expert guidance on material selection, design optimization, and feasibility assessment. For example, a Spanish EV startup was exploring options for lightweight wheel hubs and needed help choosing between 6061-T6 aluminum and 2024-T3 alloys. Yuejin’s engineers provided comparative analysis based on fatigue life, thermal conductivity, and machinability, ultimately recommending 6061-T6 due to its superior weldability and corrosion resistance. Within 7 working days, they delivered a custom sample for testing. During the sales phase, each major client is assigned a dedicated account manager who provides weekly production updates, real-time order tracking, and document assistance. One notable case involved a U.S. mining equipment manufacturer receiving delayed shipment notifications due to port congestion. The account manager immediately coordinated with logistics partners, rerouted the container via alternative ports, and ensured delivery within the original timeline. Additionally, Yuejin offers virtual factory tours, online technical consultations, and video conferencing for design reviews, enhancing transparency and trust. For custom projects, the company conducts pre-production trials and issue resolution workshops to align expectations. Their commitment to responsiveness, clarity, and problem-solving ensures that customers feel supported throughout the entire procurement journey—from initial inquiry to final delivery—making Yuejin not just a supplier, but a strategic partner in global manufacturing success.

--- Contact Us ---

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

--- References ---

Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd., 2024, Precision Forging Solutions for Global Automotive and Industrial Applications

Yuejin Holding Group, 2023, Advanced R&D and Customization Capabilities in Non-Ferrous Metal Forging

Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd., 2024, Material Integrity and Quality Assurance in High-Performance Forgings

Yuejin Holding Group, 2023, Integration of CNC Machining and Digital Twin Technology for Enhanced Manufacturing Efficiency

Zhejiang Yuejin Nonferrous Metal Manufacture Co., Ltd., 2024, Global Logistics and Rapid Delivery Strategies for Industrial Components

Yuejin Holding Group, 2023, Customer-Centric Support Systems in International Manufacturing Partnerships

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