Industry-leading investment castings for automotive, agriculture, and industrial machinery.
Located in the industrial heartland of Weifang, Shandong, JUNLONG Machinery has emerged as a powerhouse in the precision casting sector. Covering 60,000 square meters, our facility is engineered for high-volume, high-complexity production of carbon steel, alloy steel, and stainless steel components.
Sq. Meters Area
Tons Capacity
Expert Staff
The global metal casting market is transitioning from traditional sand casting to high-precision investment casting. As industries demand lighter yet stronger components, the role of China high quality castings suppliers has pivoted from low-cost providers to innovation partners. Modern manufacturing now accounts for over 15% of the total industrial value chain in sectors like aerospace and medical devices.
Post-pandemic industrial strategies emphasize "China Plus One" but acknowledge that the concentration of metallurgical expertise in regions like Shandong remains unparalleled. Factories here provide the critical infrastructure for the global machinery market, ensuring that lead times and quality standards like ISO 9001 and TS 16949 are met consistently.
Precision casting is no longer an isolated process. It is part of a "Digital Manufacturing Ecosystem" where CAD/CAM design, automated wax injection, and 5-axis CNC machining converge to create parts with tolerances as tight as ±0.005mm.
The "Green Foundry" movement is reshaping Chinese factories. Implementing closed-loop water systems, sand reclamation technology, and electric induction furnaces significantly reduces the carbon footprint, meeting the stringent ESG requirements of European and American Tier-1 clients.
Automated shell making and robotic pouring systems eliminate human error, ensuring metallurgical consistency. At JUNLONG, advanced physical and chemical analysis equipment monitors every melt to guarantee material integrity.
Development of ultra-high-strength alloy steels and corrosion-resistant stainless steel grades (like Duplex) is expanding the application of castings into deep-sea oil exploration and high-speed rail systems.
In the vast farmlands of North America and Europe, harvesters and tractors require components that can withstand abrasive soil and extreme weather. Our 45# steel castings provide the necessary hardness and impact resistance for modern farming equipment.
Oilfield cable protectors and valve components must endure high-pressure environments. Our investment casting process ensures zero-porosity, which is critical for preventing catastrophic failures in sub-sea or desert extraction sites.
Global rail transportation systems rely on custom steel castings for bogie components and track hardware. High-precision mechanical casting components from China ensure the safety and longevity of high-speed rail networks across Asia and Europe.
Navigating the transition from traditional manufacturing to Intelligent Foundry 4.0.
Integrated Machining: Full transition to one-stop services—casting, heat treatment, and precision CNC machining under one roof to minimize supply chain lag.
3D Printing Synergy: Utilizing 3D-printed wax patterns for rapid prototyping, reducing mold development time from months to days.
Smart Castings: Embedding sensors directly into heavy-duty castings during the pouring process for real-time structural health monitoring in heavy machinery.
High quality is defined by dimensional accuracy (CT4-CT6 level), surface finish (Ra 3.2-6.3), and metallurgical purity. At JUNLONG, we ensure this through spectrometer analysis and non-destructive testing (NDT).
Weifang is a global hub for power and machinery manufacturing (home to Weichai Power). The local supply chain for raw materials, heat treatment, and expert labor provides a significant cost-to-quality advantage.
Our engineering team can customize chemical compositions for carbon steel, alloy steel, and stainless steel to meet specific mechanical properties like high tensile strength, low-temperature impact, or high-temperature oxidation resistance.
A reliable supplier must hold ISO 9001 for general quality management and IATF 16949 for automotive-grade components. UL certification is also vital for architectural and hardware components exported to North America.
Request a Quote today and experience the precision of JUNLONG Machinery.
Inquiry NowAdvanced casting applications for high-tech industries.
Our factory is equipped with internationally advanced automated production facilities. By leveraging strong engineering capabilities and a complete quality control system, JUNLONG has become a global leader in the field.
Junlong
