Industry-leading OEM solutions for heavy-duty systems








In the rapidly evolving landscape of global logistics, the demand for Heavy-Duty Truck Components has transitioned from simple durability to "Intelligent Resilience." As a premier Custom Truck Components Supplier & Factory, JUNLONG Machinery Co., Ltd. (founded in 2014) spearheads this transformation by integrating lost wax investment casting with multi-axis CNC machining. With an annual capacity of 20,000 tons, we provide the skeletal integrity required for the next generation of transportation.
The modern supply chain faces unprecedented pressures: from the shift toward electric drivetrains (EV Trucks) necessitating lightweight alloys to the stringent safety requirements of autonomous braking systems. This article explores the technical benchmarks and strategic procurement pathways for Tier 1 and Tier 2 commercial vehicle partners.
Driving Innovation through Material Science and Smart Engineering
Reduction in unsprung weight through high-strength stainless steel (304L/316L) and alloy steel optimizations, allowing for higher payloads and improved fuel efficiency without sacrificing structural safety.
New cooling system housings and motor mounts requiring complex internal geometries, achievable only through high-precision investment casting with CT4-CT6 tolerance levels.
Integration of AI-driven defect detection in the casting process, ensuring 100% reliability for critical safety components like brake calipers and steering knuckles.
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Expert Staff
With certification in ISO 9001, IATF 16949, and UL, we provide more than just parts; we provide "Information Gain" — the technical certainty that every batch meets the extreme fatigue limits of the trucking industry.
Cross-sector engineering expertise for heavy-duty applications
High-toughness investment castings for high-speed rail braking systems and bogie components.
Wear-resistant carbon steel parts for excavators, loaders, and cranes operating in extreme environments.
Durable components for harvesters and tractors, optimized for high torque and debris resistance.
Corrosion-resistant pump and valve accessories for high-pressure oil and gas extraction.
Investing in the next decade of manufacturing
Transitioning 80% of our precision casting lines to robotic shell-making and pouring to eliminate human error and enhance consistency.
Implementing real-time sensor data across our 60,000 m² facility to predict casting anomalies before they occur, reducing waste by 15%.
Adopting recycled alloy steel loops and green energy smelting to meet the rising ESG requirements of European and American clients.
Expert answers for engineers and sourcing managers
We specialize in 304/316 Stainless Steel for corrosion resistance, Carbon Steel (WCB, LCC) for structural strength, and various Alloy Steels for high-wear applications. Every melt is verified via spectral analysis.
We utilize lost wax investment casting which offers superior dimensional accuracy (ISO 8062 CT4-CT6) compared to sand casting. This is followed by CNC machining on vertical and horizontal centers to reach tolerances as tight as ±0.01mm.
Yes. Our engineering team of 30+ technicians provides DFM (Design for Manufacturing) support, allowing for rapid tooling development and bridge production before scaling to our 20,000-ton annual capacity.
Absolutely. We maintain active IATF 16949 certification, which is the global standard for automotive quality management systems, ensuring full traceability from raw material to finished part.



High-performance parts for diverse engineering demands








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