JUNLONG Machinery Co., Ltd. is not merely a manufacturer; it is a specialized industrial hub for precision casting and deep processing. With a sprawling 60,000 m² facility in Shandong, Weifang, we bridge the gap between complex engineering concepts and high-performance physical components. Our annual capacity of 20,000 tons serves the most demanding agricultural and automotive sectors globally.
An Analytical Look at Material Science and Engineering Reliability
In the global agricultural landscape, the gearbox is the "heart" of mechanical transmission. Whether in high-horsepower tractors, harvesters, or irrigation systems, the gearbox housing must withstand extreme torque, corrosive soil environments, and continuous vibrational stress. Precision casting (Lost Wax Investment Casting) has emerged as the gold standard for manufacturing these housings due to its ability to produce near-net-shape components with complex internal cooling channels and structural reinforcements that sand casting or welding cannot achieve.
We utilize advanced Carbon Steel, Alloy Steel, and Stainless Steel alloys tailored for agricultural durability. Our process adheres to TS 16949 and ISO 9001 certifications, ensuring that every housing provides superior fatigue resistance. In agricultural machinery, "reliability" is synonymous with "profitability"; a gearbox failure during the harvest window can cost farmers thousands of dollars per hour. Our castings are engineered to exceed 10,000 hours of operational life under peak load conditions.
Located in Weifang, the "Power City of China," JUNLONG leverages a complete industrial ecosystem. Our efficiency advantage is three-fold:
Modern gearbox housings are now designed to integrate sensors for real-time vibration and temperature monitoring. Our casting process allows for the precise placement of sensor ports and wiring conduits.
Enterprises in the US, Germany, and Italy are shifting toward "One-Stop" suppliers. We provide not just the casting, but the final surface treatment and assembly-ready components.
To improve fuel efficiency in tractors, there is a trend toward thinner-walled but high-strength alloy housings. Our investment casting ensures wall thickness consistency within ±0.2mm.
Our housings are found in excavators, loaders, and heavy-duty harvesters where impact resistance is critical.
The corrosion-resistant properties of our stainless steel castings make them ideal for coastal agricultural equipment and petroleum machinery.
We offer advanced painting, powder coating, and galvanizing to ensure 500+ hours of salt spray resistance.
Expert Answers for Global Procurement Managers
For new designs, mold manufacturing takes 15-20 days. Sample approval and initial production run typically occur within 30-45 days, depending on the complexity and machining requirements.
We use non-destructive testing (NDT), including X-ray inspection and ultrasonic testing, alongside magnetic particle inspection to ensure no internal defects or porosity in high-stress areas.
Yes. While our capacity is 20,000 tons, our flexible manufacturing system (FMS) allows us to support specialized agricultural machinery OEMs with smaller batch requirements efficiently.
Standard carbon steel (like WCB) is common, but for high-stress agricultural use, we often recommend alloy steels (like 8620 or 4140) which offer superior hardenability and wear resistance.
We are not just a casting supplier, but a one-stop precision manufacturing partner from concept to finished product. Through deep integration of advanced equipment, full-process quality control, and professional engineering support, we ensure high-quality, high-reliability casting solutions for our clients.
Ensures dimensional accuracy at the source of casting.
The core process utilizing lost wax technology for high accuracy.
Equipped with horizontal/vertical machining centers and CNC lathes.
Meets final appearance and performance requirements (Anti-corrosion).
Further, our company has obtained ISO 9001, TS 16949, UL, and other quality management system certifications, ensuring process control over every production detail.
OEM Solutions for Global Industry Leaders
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