Custom Differential for Case Iron Sand Casting China Supplier's Premium Casting Services

In the global automotive and heavy machinery industries, the demand for high-performance, custom-engineered differential cases is met with excellence by China's leading suppliers specializing in iron sand casting. Our premium custom casting services provide OEMs and aftermarket manufacturers with differential solutions that perfectly balance superior strength, cost-effectiveness, and design flexibility. We specialize in producing custom differential cases and carrier assemblies that meet the most stringent specifications for a wide range of vehicle platforms and industrial machinery.

Advanced Material and Metallurgical Expertise
We utilize high-grade gray iron (Grades G3000-G3500) and ductile iron (Grades 45010-6003) for all our custom differential castings. Our ductile iron, with its spherical graphite microstructure, offers an exceptional combination of tensile strength (min. 450 MPa), yield strength, and elongation, providing outstanding impact and fatigue resistance. For applications requiring enhanced wear resistance, we offer alloyed iron grades. Our in-house metallurgical lab ensures precise chemical composition control and consistent mechanical properties through advanced spectrographic analysis, guaranteeing that every casting delivers robust performance under high-torque, high-stress conditions.

Precision-Engineered Sand Casting Process
Our manufacturing capability is centered on state-of-the-art sand casting technologies. We employ both resin-coated sand for producing complex cores and green sand molding with automated molding lines for high-volume production. This process allows for exceptional design freedom to create custom geometries with integrated features, optimal ribbing for stiffness, and precise wall thickness control. The result is a near-net-shape casting that minimizes machining waste while achieving critical tolerances for bearing bores, ring gear flanges, and mounting surfaces.

Comprehensive Customization and Application
Our core competency is customization. We work directly with clients to engineer differential cases for passenger cars, commercial trucks, agricultural tractors, construction equipment, and specialty vehicles. From initial CAD model and pattern creation to final machining, we provide a seamless, integrated service. Our precision-machining workshops, equipped with CNC lathes and machining centers, ensure that every custom case is finished to exact OEM blueprints, ready for gear installation and final assembly.

Partner with us for your custom differential case needs. We combine proven iron sand casting expertise with modern manufacturing rigor to deliver a premium, cost-competitive product that enhances your supply chain reliability and product performance.