JUNLONG Machinery Co., Ltd., established in 2014, represents the pinnacle of Chinese investment casting expertise. Operating from a state-of-the-art 60,000 square meter facility in Weifang, Shandong, we provide a robust annual production capacity of 20,000 tons of precision castings. Our focus on Chemical Processing Equipment Investment Castings is driven by a deep understanding of material science and fluid dynamics.
With a dedicated team of over 30 high-level engineering technicians, we integrate Lost Wax Casting and deep precision machining to deliver components that meet the rigorous standards of global chemical, oil, and gas giants.
The chemical processing industry demands equipment that can withstand aggressive corrosion, high pressure, and fluctuating temperatures. Investment casting (Lost Wax Casting) provides the "Information Gain" required for complex internal geometries that traditional sand casting cannot achieve.
We specialize in CF8M (316), CF3M (316L), and Super Duplex Steels. Our castings are engineered for media containing chlorides, acids, and caustic solutions, ensuring long-term structural integrity in desalination and petrochemical plants.
Our investment casting process allows for the creation of smooth internal passages in pump impellers and valve bodies, reducing turbulence and energy consumption in chemical flow systems.
Utilizing physical and chemical analysis, including X-ray and ultrasonic testing, we ensure that every chemical processing component is free from porosity and inclusions that could lead to catastrophic failure.
Custom cable centralizers and protector clamps designed for shale gas extraction. Our components are localized to meet ASME and API standards for high-load durability.
Providing precision valve accessories for pharmaceutical and fine chemical plants in Germany and Italy, focusing on surface finish and metallurgical purity.
Supporting high-speed rail and heavy-duty engineering machinery with castings that balance weight reduction and extreme tensile strength.
In a volatile global market, JUNLONG Machinery offers stability through full industrial chain integration. From in-house mold manufacturing to CNC precision machining and final surface treatment, we eliminate third-party delays.
The next decade of investment casting will be defined by "Smart Foundry" technologies. JUNLONG is currently investing in:
Simulating metal solidification patterns to eliminate thermal stress points before the first wax pattern is even injected.
Integrating 3D printed wax patterns for rapid prototyping of complex chemical equipment components, reducing R&D lead times by 60%.
Closed-loop wax recycling and energy-efficient induction melting to meet global ESG requirements for sustainable manufacturing.
Certified by: ISO 9001, TS 16949, UL - Ensuring global compliance and reliability.
Investment casting offers unparalleled dimensional accuracy and surface finish. For chemical processing, this means fewer weld points (reducing stress corrosion cracking risk) and highly efficient fluid dynamics in pump and valve components.
Yes. Our laboratory can formulate and test custom carbon steel, alloy steel, and stainless steel variants to meet specific corrosion or temperature resistance requirements defined by your engineers.
With an annual capacity of 20,000 tons and automated production lines, we typically offer some of the most competitive lead times in the industry, ranging from 4 to 8 weeks depending on machining complexity.
We adhere to ISO 9001 and TS 16949 standards. Every batch undergoes physical and chemical analysis, and we provide full traceability reports for all mechanical properties and material compositions.
Looking for a reliable manufacturer for your next chemical processing project? JUNLONG Machinery provides the engineering depth and manufacturing scale you need.
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