In the modern era of high-speed transit and heavy-haul rail, the demand for precision-engineered components has reached unprecedented levels. Investment casting, also known as lost wax casting, has emerged as the gold standard for manufacturing critical railway parts that require extreme durability, tight tolerances, and complex geometries.
Global rail operators are shifting focus toward Life Cycle Cost (LCC) optimization. Procurement departments in the US, Germany, and Canada now prioritize suppliers who offer weight-optimized components that reduce energy consumption without compromising structural integrity. This has led to an increased adoption of alloy steels and 16Mn variants in precision casting.
Post-pandemic industrial strategies emphasize "China Plus One," yet China remains the hub for casting excellence. The integration of Industry 4.0 in Chinese factories has created a "Resilience Edge"—combining rapid prototyping with massive scale. Manufacturers like Junlong Machinery are at the forefront, merging digital twin technologies with traditional casting mastery.
Understanding the "Information Gain" in casting involves looking at the microstructural stability of materials. For railway parts, the transition from sand casting to investment casting offers a 30% increase in fatigue life due to reduced internal porosity and superior surface finish, directly impacting safety and maintenance intervals.
Founded in 2014 and located in Weifang, Shandong, JUNLONG Machinery Co., Ltd. has established itself as a global leader in the precision casting industry. Spanning 60,000 square meters, our facility is a beacon of China Factory 4.0, integrating automated production with rigorous physical and chemical analysis.
We specialize in carbon steel, alloy steel, and stainless steel casting, serving as a key partner for global industry leaders in Germany, the USA, Italy, and beyond. With over 200 employees and 30+ senior engineers, we provide one-stop precision manufacturing from concept to finished product.
Equipped with internationally advanced automated casting production facilities, we ensure product quality stability. Our physical and chemical analysis equipment meets the most stringent mechanical property testing requirements for diverse materials.
Leveraging strong engineering capabilities and a complete quality control system, we export to Germany, the US, Italy, and Canada. We are a trusted name for mid-to-high-end clients seeking European and American quality standards.
From mold manufacturing and casting to CNC machining and surface treatment, we eliminate multi-factory communication costs. Our certifications include ISO 9001, TS 16949, and UL, ensuring full-process traceability.








Providing high-reliability casting solutions across diverse industrial ecosystems.
Critical bogie components, brake systems, and couplers. Investment casting ensures the safety of high-speed rail networks by providing flawless metal structures.
Cable protectors, centralizers, and drill tools. Our 4" Petroleum Cable Protectors are designed to withstand extreme downhole pressures.
Supporting heavy-duty operations for excavators and cranes. Wear-resistant castings ensure long-term durability in harsh mining environments.
Custom lost wax castings for farming equipment and ship parts. Corrosion resistance and high precision are our benchmarks.
The pursuit of zero defects is our mission. With ISO 9001 and TS 16949 certifications, every stage—from wax injection to final shot blasting—is monitored via digital quality management systems. We ensure that every railway casting part meets the international safety standards required for high-velocity rail operations.
Partner with China's leading investment casting manufacturer for your next railway or industrial project. Request a professional quote today.
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