The railway industry is currently undergoing a massive transformation, driven by the demand for higher speeds, increased safety, and sustainable heavy-haul logistics. As a leading China Railway steel casting parts manufacturer, JUNLONG Machinery stands at the intersection of traditional metallurgical excellence and modern digital manufacturing. The procurement of railway steel castings—ranging from bogie frames to braking components—now requires more than just "low cost"; it demands "Information Gain" through superior metallurgy and structural optimization.
International rail operators are shifting focus toward Tier-1 Chinese suppliers who can offer integrated design-to-casting solutions. The emphasis is on reducing weight without compromising structural integrity.
Transitioning from traditional sand casting to high-precision Lost Wax Investment Casting. This ensures tighter tolerances, reducing the need for extensive secondary machining.
Focus on Carbon Steel, Alloy Steel, and Stainless Steel variants specifically engineered for high dynamic loads and extreme temperature fluctuations in rail environments.
Founded & Established Excellence
Advanced Production Capacity
Annual Casting Output
JUNLONG Machinery Co., Ltd., located in Weifang, Shandong, is not just a factory but a high-tech hub for precision manufacturing. With over 200 dedicated employees and 30+ senior engineering technicians, we integrate the entire lifecycle of a casting part—from digital modeling and mold manufacturing to final surface treatment and localized logistic support.
In the modern industrial landscape, a "part" is a part of a larger ecosystem. Our solutions address global challenges:
Custom precision casting of train parts requires absolute consistency. Our automated production lines ensure that every bogie component or coupling link meets the rigid standards required for 300km/h+ operations.
For railway networks crossing Siberian colds or Saharan heats, our alloy steel investment casting provides enhanced corrosion resistance and thermal fatigue mitigation.
Optimizing the strength-to-weight ratio of container locking pins and wagon connectors allows rail operators to maximize payload capacity, directly impacting the bottom line.
By utilizing lost wax casting, we significantly reduce raw material waste compared to subtractive manufacturing, aligning with global Green Supply Chain initiatives.
Quality in the railway sector is a matter of public safety. JUNLONG Machinery operates under a rigorous quality management framework:
Investment casting (Lost Wax) provides superior surface finish and dimensional accuracy. For railway parts like valve accessories or complex train components, this reduces post-processing costs and ensures a better fit, which is critical for safety and vibration reduction.
We primarily utilize Carbon Steel (for strength and weldability), Alloy Steel (for high-wear applications), and Stainless Steel (for corrosion-resistant components in braking and cooling systems).
Our engineering team works directly from your CAD/BIM models. We provide a "One-Stop" service: Mold design -> Casting -> Precision Machining -> Surface Treatment -> Quality Verification.
Thanks to our 60,000m² facility and 20,000-ton capacity, we offer some of the industry's most competitive lead times, typically ranging from 4 to 8 weeks depending on complexity.
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