JUNLONG Machinery Co., Ltd., established in 2014, has emerged as a titan in the precision casting landscape. Headquartered in Weifang, Shandong—the heart of China's industrial manufacturing hub—our 60,000 square meter facility stands as a testament to engineering excellence. With an annual capacity of 20,000 tons, we specialize in Low Carbon Steel, Alloy Steel, and Stainless Steel castings.
Our workforce of 200+ professionals, including 30+ senior metallurgical engineers, ensures that every component exceeds the stringent requirements of IATF 16949 and ISO 9001 standards.
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Low carbon steel (typically containing 0.05% to 0.30% carbon) is the backbone of modern industrial machinery. In the context of Investment Casting (Lost Wax Process), this material offers a unique synergy of ductility, weldability, and cost-effectiveness. Unlike high-carbon variants, low carbon steel castings are less prone to brittleness, making them ideal for components subjected to vibration and impact, such as railway parts and automotive chassis components.
Technical Roadmap: Our process begins with advanced wax injection, followed by a multi-layered ceramic shell construction. The key "Information Gain" in our facility lies in our Atmospheric Control Melting. By strictly controlling the oxygen and nitrogen levels during the melt, we achieve a refined grain structure that significantly enhances the mechanical properties beyond standard industry benchmarks. Our low carbon steel parts demonstrate superior electromagnetic properties, making them indispensable for specialized electronic housings and oil & gas sensors.
Furthermore, we utilize AI-driven solidification simulation to predict potential shrinkage or porosity before the first drop of metal is poured. This digital-twin approach reduces waste and ensures a 99.8% first-pass yield for complex geometries that other manufacturers shy away from.
In the post-pandemic industrial era, "Supply Chain Resilience" has moved from a buzzword to a critical business requirement. Our location in Weifang, Shandong, provides us with a localized ecosystem of raw material refineries, specialized heat treatment facilities, and proximity to the Qingdao Port. This allows JUNLONG to maintain lead times 30% shorter than European counterparts.
We provide localized support for global clients by adhering to international standards (ASTM, DIN, JIS, BS). Our compliance framework includes:
Custom lost-wax components for harvesters and plows where toughness in abrasive soil is non-negotiable.
Critical braking system components and structural connectors that demand zero-defect metallurgical integrity.
Cable protectors and pump valve accessories engineered to withstand high-pressure, corrosive environments.
High-load structural joints for cranes and excavators, replacing expensive forgings with high-precision casts.
Equipped with internationally advanced automated production lines, spectral analyzers for real-time chemical verification, and X-ray non-destructive testing (NDT), we ensure every "Low Carbon Steel Cast" meets the exact mechanical specs of the original design.
As a growth-focused leader, JUNLONG is investing in the Industrial Internet of Things (IIoT). Our future roadmap includes:
Typically, mold design and sampling take 3-4 weeks. Once approved, mass production cycles range from 4-6 weeks depending on complexity and volume. We offer expedited "Green Lane" services for critical infrastructure projects.
Every batch of raw material is tested via spectrometer upon arrival. We provide EN 10204 3.1 material certificates for every shipment, documenting chemical composition and mechanical properties (Tensile, Yield, Elongation, Hardness).
Yes. Utilizing our vacuum-assisted investment casting techniques, we can achieve wall thicknesses as low as 2.5mm while maintaining structural integrity, which is often a challenge in traditional sand casting.
For low carbon steel, we offer Zinc plating, Phosphating, Powder Coating, and Electrophoresis (E-coat) to ensure long-term durability in outdoor or marine environments.
Partner with JUNLONG for unparalleled precision, metallurgical expertise, and global supply chain efficiency. Let's build the future of industry together.
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