An Industry Whitepaper by JUNLONG Machinery Co., Ltd.
In the high-stakes environment of the oil and gas industry, material failure is not an option. From the high-pressure environments of subsea exploration to the corrosive atmosphere of downstream refineries, precision castings act as the backbone of global energy security. At JUNLONG Machinery Co., Ltd., founded in 2014, we recognize that our components—such as ESP cable protectors, pump valve accessories, and manifold components—must withstand extreme mechanical stress, thermal fluctuations, and chemical aggression.
Our 60,000 square meter facility in Weifang, Shandong, is engineered to provide "Information Gain" to our clients. We don't just provide a part; we provide a deep understanding of metallurgy, utilizing Lost Wax (Investment) Casting technology to achieve tolerances and surface finishes that traditional sand casting cannot match.
Expertise in carbon steel, alloy steel, and stainless steel, meeting ASTM, AISI, and DIN standards for H2S and CO2 environments.
Internationally advanced automated casting production lines ensure consistency across 20,000 tons of annual capacity.
Proven track record with Tier-1 energy firms in the USA, Germany, Italy, and Canada.
Utilizing ProCAST and MagmaSoft to simulate liquid metal flow, predicting porosities and thermal stress before the first mold is even created.
Integrating 3D-printed sand and wax patterns for rapid prototyping of complex oil-field manifold geometries, reducing lead times from months to weeks.
Development of super-duplex stainless steels and high-manganese alloys specifically optimized for cryogenic and deep-sea pressure applications.
The "China Advantage" has evolved. At JUNLONG, it means the integration of a full industrial chain. We are not just a foundry; we are a precision manufacturing hub.
Compliance with API (American Petroleum Institute) standards and UL listings for safety-critical components.
Adherence to EN standards and PED (Pressure Equipment Directive) for high-pressure valve bodies used in the North Sea.
24/7 technical support and engineering consultation to bridge the gap between design in the West and manufacturing in the East.
Junlong
