Founded in 2014 and located in the industrial heart of Weifang, Shandong, JUNLONG Machinery Co., Ltd. has established itself as a premier global supplier of precision castings. Spanning 60,000 square meters, our facility produces 20,000 tons annually of high-performance components.
With a workforce of over 200 experts, including 30+ senior engineers, we specialize in carbon steel, alloy steel, and stainless steel casting, offering full-lifecycle manufacturing from initial design to deep machining processing.
The modern agricultural sector is undergoing a radical shift toward precision farming. This evolution demands machinery that is lighter, more durable, and capable of housing complex electronic sensors. Traditional sand casting is increasingly being replaced by lost-wax investment casting, which allows for intricate geometries and tighter tolerances required for automated tilling and harvesting systems.
At JUNLONG, we leverage AI-assisted thermal modeling to predict metal shrinkage and cooling patterns, ensuring that every bracket, gear, and housing meets the rigorous stress-load requirements of heavy-duty farming equipment.
Recent global shifts have highlighted the need for "China Plus One" strategies, yet China remains the hub for metallurgical excellence. Global OEMs in the US, Germany, and Italy are prioritizing suppliers who offer "Design for Manufacturability" (DfM) support. They seek manufacturers who don't just "pour metal" but provide a complete engineering solution.
Our export data shows an increasing demand for corrosion-resistant alloy steels, particularly for equipment used in high-salinity or high-humidity soil environments. Global buyers are moving away from multi-vendor sourcing to integrated partners like JUNLONG to reduce lead times and quality variance.
The industry solution is no longer just a part; it's the performance of the machine. Our macro approach includes:
Development of customized alloy recipes that offer a 25% increase in tensile strength without increasing weight.
Robotic grinding and CNC machining centers ensure that every component fits perfectly into automated assembly lines.
Advanced heat treatment and specialized coatings to resist the abrasive nature of soil and chemical fertilizers.
Our 2025-2030 roadmap focuses on Digital Twin integration. By creating a digital replica of the casting process, we can virtually test how a farm equipment component will react to extreme temperature fluctuations before the first mold is even made.
We are also investing in low-carbon foundry technologies, recognizing that sustainability is now a core requirement for global agricultural brands. Reducing waste through 3D printed sand molds and wax recycling is at the heart of our green initiative.
Reliability is non-negotiable in agricultural machinery. Our facility operates under a stringent quality management framework:




Our workshop is equipped with internationally advanced automated casting production facilities and comprehensive physical and chemical analysis equipment. From horizontal machining centers to CNC lathes, we offer the full industrial chain integrated manufacturing capability.




Harvester blades, tilling brackets, tractor transmission housings, and seed drill components.
Excavator buckets, loader joints, and heavy-duty crane components designed for extreme environments.
Precision cast engine components and structural spare parts for maritime and rail transportation.
Valve bodies and pumping components with high pressure and corrosion resistance.
Truck braking systems, axle components, and high-strength suspension parts.
Custom precision casting for high-load architectural fittings and specialized fasteners.
We specialize in carbon steel, alloy steel, and stainless steel. For farm equipment, we often use wear-resistant alloy steels that provide the perfect balance between toughness and durability.
We use lost-wax precision casting technology combined with CNC machining. Every part undergoes rigorous dimensional checks using CMM (Coordinate Measuring Machines) to ensure it meets your specific tolerances.
Yes, over 80% of our production is OEM-based. Our engineering team works directly with your CAD files to optimize the casting process for your specific design.
Depending on the complexity, mold creation takes 2-4 weeks, and production typically takes 4-6 weeks. We offer expedited services for critical supply chain needs.
Absolutely. Our products are exported to Germany, the USA, Italy, Canada, and many other countries. We are familiar with international standards like ASTM, DIN, and JIS.
JUNLONG Machinery is certified under ISO 9001, IATF 16949, and UL, ensuring full process control and international quality compliance.