Founded in 2014 and headquartered in the industrial hub of Weifang, Shandong, JUNLONG Machinery Co., Ltd. spans a massive 60,000 square meters. With an annual output reaching 20,000 tons, we are a global leader in high-precision investment casting and CNC machining.
The global high-precision casting industry is undergoing a paradigm shift. Traditional foundries are evolving into "Smart Foundries" where AI and data analytics optimize the molten metal flow and cooling rates. As a forward-thinking custom high precision casting manufacturer, JUNLONG integrates these macro-trends to ensure zero-defect production.
Simulating the casting process before the first mold is even created to eliminate porosity and structural weaknesses.
Focusing on recycled alloy intake and energy-efficient induction furnaces to meet global ESG requirements.
Utilizing 3D printed sand molds and wax patterns to reduce lead times from months to weeks.
Modern procurement officers in Germany, the USA, and Japan are no longer just looking for "low cost." They demand Supply Chain Resilience and Information Gain. Our facilities provide real-time quality tracking and material certification that exceeds international standards.
Global demand for precision castings is surging in sectors like Electric Vehicles (EV), where lightweight aluminum and high-strength alloy steels are critical for battery housing and cooling system integrity. JUNLONG's capacity of 20,000 tons annually is strategically positioned to fill this gap in the global supply chain.
Equipped with internationally advanced automated casting production facilities and comprehensive physical and chemical analysis equipment.
Exporting to Germany, USA, Italy, and Canada, leveraging strong engineering capabilities and a complete quality control system.
From mold manufacturing to precision casting, CNC machining, and surface treatment—all under one roof for full traceability.
Specializing in carbon steel, alloy steel, and stainless steel with rigorous mechanical property testing.
Providing critical components for the backbone of global infrastructure.
Forging Strong Mechanical Backbones, Conquering Extreme Conditions. Excavators, loaders, and cranes rely on high-strength, wear-resistant castings. We provide customized precision casting services, producing structurally complex and high-load-bearing components to ensure machinery remains durable in mining and construction environments.
JUNLONG's R&D roadmap focuses on the "Three Highs": High Complexity, High Precision, and High Consistency. By 2026, we aim to integrate fully autonomous AI inspection systems to scan every casting against its 3D CAD model in real-time.
Operating in global markets requires strict adherence to localized standards. JUNLONG ensures every shipment complies with ISO 9001, TS 16949, and UL certifications. We provide comprehensive documentation: MTRs (Material Test Reports), Dimensional Inspection Reports, and Non-Destructive Testing (NDT) results.
We typically achieve linear tolerances within CT4-CT6 per ISO 8062 standards, depending on the material and part geometry.
Yes. Our annual capacity of 20,000 tons allows us to scale from high-mix low-volume (HMLV) prototypes to high-volume mass production for global OEMs.
We specialize in carbon steel (WCB, LCC), alloy steel (4140, 8620), and various grades of stainless steel (304, 316, 17-4PH).
Absolutely. We have an integrated CNC workshop with horizontal and vertical machining centers to deliver finished-to-print components.
Partner with a world-class precision casting supplier. Our engineering team is ready to analyze your drawings and provide optimized manufacturing solutions.
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