Jian-Jie International
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Jian-Jie International
Advanced casting, forging, and machining services for rail, automotive, mining, and heavy equipment industries. 4 manufacturing bases in China delivering globally with excellence.
Jian-Jie International specializes in the field of metal casting products. Our expertise spans the industries of railroad, automobile, heavy equipment, and mining.
Based on the principle that no single manufacturer can provide all solutions for every requirement, we have invested heavily in establishing strong working relationships and quality systems with our four Chinese manufacturing bases.
We produce precision parts through steel and iron casting, forging, aluminum die casting, and advanced machining processes—ensuring reliability, durability, and compliance with international standards.
Precision-engineered components for critical applications across multiple industries.
High-strength steel castings for freight rail applications, engineered for durability and safety under extreme conditions.
Critical components for urban rail systems, including bogie parts and structural castings with tight tolerances.
Engineered castings and machined parts for commercial vehicles and heavy-duty automotive applications.
Wear-resistant castings for excavators, loaders, and haul trucks operating in harsh environments.
Custom castings and machined components for heavy equipment and industrial applications.
Precision-forged parts for applications requiring superior strength and grain structure integrity.
Rapid prototyping with 3D printed wax molds and quick-turn tooling solutions.
High-integrity aluminum components using A380 alloy and advanced die casting techniques.
From design to delivery, we offer comprehensive engineering and manufacturing services.
We apply the most suitable casting process based on international standards and product requirements.
Our strong design and development team creates innovative products that meet customer needs and keep us ahead of the competition.
Controlling quality is an essential aspect of our manufacturing process, ensuring products meet desired standards and customer expectations.
We own a well-equipped physical and chemical lab in the factory to monitor and maintain product quality. Our lab supports:
We cast gray iron, ductile iron, low alloy high strength steel, heat-resisting steel, and A380 aluminum alloy for die casting. We also have extensive experience with AAR standard grade steel.
We apply the most suitable casting process based on international standards and product characteristics, including sand casting, shell casting, mould casting, lost pattern casting, and sand-lined metal mold.
We offer 3D printed wax molds and rapid prototyping services with a lead time of just 10 days, using methods like 3D printing, lost foaming, and quick conventional pattern making.
Yes, we provide comprehensive engineering services including CAD design, material selection, DFM/DFA, GD&T, FEA, CFD, and development of PPAP documentation packages.
We have a well-equipped in-house physical and chemical laboratory for quality monitoring. Our quality control processes include chemical analysis, mechanical testing, and compliance with international standards.
Contact our team to discuss your metal casting and machining requirements.
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