The global automotive casting industry is currently undergoing a seismic shift. As the world pivots toward electric vehicles (EVs) and sustainable mobility, the demand for lightweight, high-performance castings has never been higher. Traditional internal combustion engine (ICE) components are being complementedâand in many cases replacedâby complex structural castings for battery housings, motor enclosures, and integrated chassis components.
JUNLONG Machinery Co., Ltd., founded in 2014 in Weifang, Shandong, stands at the intersection of this transition. With a 60,000 m² facility and an annual capacity of 20,000 tons, we provide the scale and technical precision required by global industry leaders in Germany, the USA, Italy, and Canada.
How we lead the industry through technological evolution
We are moving beyond standard carbon steel. Our R&D focuses on high-silicon molybdenum ductile iron and specialized stainless steel alloys (304/316) that offer superior thermal fatigue resistance for turbocharged exhaust manifolds and EV cooling systems.
Equipped with internationally advanced automated casting lines, we ensure consistency that manual processes cannot match. Our roadmap includes the integration of AI-driven defect detection and real-time melt analysis to achieve zero-defect delivery.
By using advanced simulation software, we predict casting defects like porosity or cold shuts before a single mold is poured. This "First Time Right" approach accelerates development cycles for OEM clients from 12 months to just 16 weeks.
In an era of global uncertainty, the resilience of the Chinese manufacturing ecosystem remains its greatest competitive advantage. Located in the heart of Shandongâs industrial cluster, JUNLONG leverages a robust local network of raw material suppliers and logistics hubs.
Precision castings for diverse industrial high-load environments
Our castings for harvesters and tractors are designed for extreme durability in high-abrasion environments, ensuring farm vehicle longevity during critical harvest seasons.
Providing high-precision steering knuckles, brake levers, and motor housings. We meet the stringent TS 16949 standards required for safety-critical components.
Heavy-duty structural components for excavators and cranes. Our alloy steel castings provide the necessary fracture toughness to withstand extreme hydraulic pressures.
Entering international markets requires more than just high-quality parts; it requires a deep understanding of localized compliance and certification. JUNLONG is proud to hold ISO 9001, IATF 16949, and UL certifications.
We provide full documentation for every shipment, including Material Test Reports (MTRs), Dimension Inspection Reports, and Non-Destructive Testing (NDT) results. Our products are engineered to meet ASTM, DIN, and JIS standards, ensuring seamless integration into your local assembly lines.
The foundation of our "Precision First" philosophy
We typically achieve ISO 8062 CT4-CT6 linear tolerances. For critical dimensions, we utilize in-house CNC machining to reach tolerances as tight as Âą0.01mm.
We employ X-ray testing, Magnetic Particle Inspection (MPI), and Ultrasonic Testing (UT) to detect subsurface defects, ensuring compliance with automotive safety standards.
Prototype samples are usually delivered within 4-6 weeks after mold approval. Mass production typically follows within 8-10 weeks, depending on complexity.
Yes, our engineering team provides alloy optimization services, suggesting high-strength alternatives that allow for thinner wall sections without sacrificing structural integrity.
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