JUNLONG Machinery Co., Ltd., located in the industrial heart of Weifang, Shandong, stands as a beacon of high-end precision manufacturing. Spanning 60,000 square meters, our facility is not just a foundry but a sophisticated technology hub capable of producing 20,000 tons of precision castings annually.
Our expertise lies in the "Lost Wax" investment casting process, specializing in high-performance materials including Carbon Steel (e.g., 20Mn5), Alloy Steel (e.g., 4140, 4340), and various Stainless Steel grades. With a workforce of over 200 professionals and 30+ senior engineering technicians, we provide a holistic solution from initial 3D design to finished machined parts.
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Equipped with internationally advanced automated casting production lines. Our physical and chemical analysis equipment ensures that every batch meets the most stringent mechanical property requirements.
Exporting to Germany, USA, Italy, and Canada. We leverage the massive industrial cluster advantage of China to offer competitive lead times and cost efficiencies without compromising on quality.
We are fully certified in ISO 9001, TS 16949, and UL. This ensures total process control over every production detail, aligning with the rigorous standards of the global automotive and petroleum industries.
The global alloy steel casting market is undergoing a paradigm shift. Procurement managers are no longer just looking for lower unit prices; they are seeking supply chain resilience and engineering partnership. Our Shandong-based factory offers several distinct "Information Gains" for global buyers:
From high-precision truck brake levers to rail transportation components, we provide safety-critical parts that meet TS16949 standards for durability and fatigue resistance.
Our OEM 4140 cable protectors and drill bit components are engineered to withstand the extreme pressures and corrosive environments of deep-sea and desert drilling.
Support brackets for excavators and loaders require immense structural integrity. Our alloy steel investment casting ensures zero internal defects (porosity) via X-ray inspection.
The investment casting industry is entering a "Smart Foundry" era. The integration of AI-driven simulation software allows us to predict cooling rates and potential shrinkage before a single gram of metal is poured. This "Digital Twin" approach is becoming a standard requirement for Tier-1 automotive suppliers.
Furthermore, Sustainability and Compliance are no longer optional. Global buyers are increasingly demanding "Green Casting" certifications. JUNLONG Machinery is committed to environmental stewardship, utilizing energy-efficient induction furnaces and sand-recycling systems to reduce our carbon footprint, making us a preferred partner for ESG-conscious corporations in the EU and North America.
Localized support is another critical factor. We have established localized technical consultation channels to assist global procurement teams with material selection and design-for-manufacturability (DFM), ensuring that the final product is not only castable but optimized for cost and performance.
A: It provides superior surface finish (Ra 3.2-6.3) and high dimensional accuracy (CT4-CT6 level), which minimizes or eliminates the need for expensive secondary machining. It is ideal for complex geometries that are impossible to achieve with traditional sand casting.
A: Every heat (batch) of metal is tested using an Optical Emission Spectrometer (OES). We provide full 3.1 chemical and mechanical test reports for every shipment, ensuring compliance with ASTM, DIN, or JIS standards.
A: Yes. While our annual capacity is 20,000 tons, our flexible automated lines and rapid prototyping capabilities allow us to serve mid-to-high-end clients who require specialized, complex components in varying volumes.
A: Tooling and sample development typically take 3-4 weeks. Once samples are approved, mass production usually spans 4-6 weeks depending on volume and finishing requirements.
Partner with a world-class precision casting supplier. Our engineering team is ready to discuss your blueprints.
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