In the landscape of 21st-century manufacturing, the demand for precision machinery parts has shifted from simple "shape-making" to "performance-engineering." As a leading China machinery parts precision castings manufacturer, we recognize that every gram of weight and every micron of tolerance defines the operational lifespan of global infrastructure. Precision casting, specifically through the Lost Wax Investment Casting method, offers unparalleled freedom in design, allowing for complex geometries that are impossible or too costly to achieve through traditional CNC machining alone.
Our role as a foundry and factory extends beyond production. We act as strategic partners for industries ranging from automotive and rail transit to petroleum and agricultural machinery. By integrating AI-driven process optimization with traditional metallurgy, we ensure that every cast part meets the rigorous standards of the E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness) framework, providing our clients with the competitive edge required in today's volatile supply chain.
Annual capacity of 20,000 tons of finished precision parts, serving mid-to-high-end clients in Germany, USA, Italy, and beyond.
Founded in 2014 and headquartered in the industrial hub of Weifang, Shandong, JUNLONG Machinery Co., Ltd. has evolved into a premier destination for high-tech precision casting. Spanning 60,000 square meters, our facility is a synergy of automated casting production and advanced deep processing. Our workforce of over 200 dedicated professionals, including a core team of 30+ engineering technicians, ensures that we remain at the forefront of metallurgical innovation.
Unlocking value through geographic and industrial clustering.
Weifang, Shandong is home to one of the world's largest machinery clusters. This provides us with immediate access to premium raw materials (Carbon Steel, Stainless, Alloy) and specialized heat treatment services.
Proximity to Qingdao Port allows for rapid global shipping. Our integrated logistics management reduces lead times by 15-20% compared to inland foundries.
We maintain strict adherence to local environmental regulations and international labor standards, ensuring your supply chain is resilient against legal and ethical risks.
From mold design (CAD/CAM) to final surface treatment, we provide a "One-Stop" shop, eliminating the communication gap between multiple sub-contractors.
Casting durable components for harvesters and tractors that withstand high-torque and abrasive soil conditions.
Specializing in corrosion-resistant valve bodies and cable protectors for deep-sea and offshore drilling environments.
Precision-engineered suspension parts and railway connectors where safety and fatigue resistance are non-negotiable.
Forging strong mechanical backbones for excavators and cranes, ensuring reliability under extreme mechanical loads.
High-precision marine components that resist salt-water corrosion and high-pressure hydraulic stress.
The industry is moving towards Digital Twins in Foundry and Green Casting. We are investing in low-emission furnaces and AI-monitored cooling cycles to enhance grain structure consistency.
Advanced physical and chemical analysis equipment for guaranteed reliability.
Expert Insight (Information Gain): Many suppliers focus solely on the casting process. JUNLONG differentiates by offering Full Industrial Chain Integration. This means we control the Metallurgical DNA of the part starting from the wax injection to the final CNC machining. This holistic approach reduces internal stresses in the metal, leading to a 30% increase in component fatigue life.
We utilize coordinate measuring machines (CMM) and 3D scanning to verify that every batch meets the exact drawing specifications of our international partners.
Every shipment comes with a comprehensive material test report (MTR) including chemical composition analysis and mechanical property tests (tensile, hardness, impact).
Our engineering team works directly with your R&D department to optimize part designs for "Castability," reducing weight while maintaining structural integrity.
Expert answers to common procurement and technical questions.
For new mold development, it usually takes 3-4 weeks. Mass production typically follows within 4-6 weeks depending on the complexity and volume of the machinery parts.
We specialize in Carbon Steel (e.g., Q235, WCB), Alloy Steel (e.g., 4140, 8620), and Stainless Steel (e.g., 304, 316, 17-4 PH). We also offer specialty alloys for high-temperature or high-corrosion applications.
Yes. Our factory includes a complete CNC machining workshop (vertical and horizontal centers), allowing us to deliver parts that are ready for immediate line-side installation.
We are ISO 9001 and TS 16949 certified. Our quality control involves 100% visual inspection, magnetic particle inspection (MPI), and ultrasonic testing (UT) for critical structural components.
Partner with a trusted China machinery parts precision castings manufacturer. We deliver reliability, technical expertise, and cost-effective manufacturing solutions globally.
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