JUNLONG Machinery Co., Ltd. is a high-quality casting supplier integrating precision casting and deep processing. Located in Weifang, Shandong, our facility spans 60,000 square meters with an annual production capacity of 20,000 tons. We specialize in carbon steel, alloy steel, and stainless steel castings that meet the rigorous safety standards of the railway industry.
With a team of over 200 dedicated professionals, including 30+ senior engineering technicians, we provide global industry leaders with solutions that bridge the gap between complex engineering concepts and durable, high-performance physical components.
Equipped with internationally advanced automated casting production facilities and physical analysis equipment, enhancing stability and efficiency.
Exporting to Germany, the USA, Italy, and Canada, serving high-tech industries including rail transportation and petroleum machinery.
ISO 9001, TS 16949, and UL certified, ensuring meticulous process control and full traceability for every railway casting.
In the modern era of high-speed rail and heavy-haul freight, the demand for component reliability has shifted from "satisfactory" to "mission-critical." Custom Lost wax carbon steel railway castings represent the pinnacle of this evolution. Unlike traditional sand casting, the lost wax (investment casting) process allows for intricate geometries and superior surface finishes that reduce weight without compromising structural integrity.
The global railway sector is currently navigating a major shift toward energy efficiency. Manufacturers are increasingly seeking high-strength carbon steel alloys that allow for thinner walls in structural components, effectively reducing the overall weight of rolling stock. This trend directly impacts carbon emissions during the vehicle's operational lifecycle. As a leading manufacturer, we integrate "Information Gain" into our design process—providing clients with simulation data that optimizes material distribution where it matters most.
Using AI-driven simulations to predict stress points in railway castings before the first wax mold is ever injected.
Blending carbon steel with specific micro-alloys to enhance fatigue resistance in extreme sub-zero or high-heat environments.
Global procurement teams now prioritize suppliers who offer localized support and full industrial chain integration.
Procuring railway components involves navigating a labyrinth of international standards (AAR, EN, UIC). A "Supplier" is no longer just a vendor; they must be a "Strategic Partner." At JUNLONG, we provide macro-level solutions that include:
The future of carbon steel castings in the railway industry lies in Additive Manufacturing (AM) Hybridization. By combining 3D-printed wax patterns with traditional investment casting, we can produce prototypes in days rather than weeks. Looking toward 2030, JUNLONG is investing in green foundry technologies, reducing the environmental footprint of our shell-making and melting processes, aligning with the global push for "Green Steel."
Annual Tons Capacity
Sqm Production Base
Expert Engineering Team
Quality Traceability
From initial design concepts to final product delivery, all key processes are completed in-house to ensure seamless quality control and shorter lead times:
Ensures dimensional accuracy at the source of casting.
Utilizing high-grade carbon steel and lost wax mastery.
Equipped with horizontal and vertical machining centers (CNC).
Coating and finishing to meet harsh railway environment specs.
Partner with a world-class precision casting supplier. Our engineering team is standing by to review your blueprints and provide a technical feasibility analysis.
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