Our Core Specialized Components for Global Infrastructure
Founded Year
Square Meters Facility
Annual Tons Capacity
Expert Employees
In the modern rail transportation era, the demand for Custom Precision steel casts for railway parts has shifted from simple durability to complex "Mechanical Integrity." At JUNLONG Machinery Co., Ltd., we specialize in the "Lost Wax" investment casting process, which allows for the creation of components with near-net-shape accuracy, reducing the need for extensive post-process machining.
Railway components such as bogie frames, braking systems, and coupling mechanisms face extreme dynamic loads. Our engineering team utilizes Carbon Steel, Alloy Steel, and Stainless Steel to meet specific tensile strengths and corrosion resistance requirements defined by global railway standards.
By integrating Automated Precision Casting, we ensure that every casting—whether it is a 16Mn steel bracket or a stainless steel valve—exhibits a stable crystalline structure, crucial for preventing fatigue failure in high-speed rail applications.
Transitioning toward Digital Twin and AI-Enhanced Casting
Full implementation of TS 16949 and ISO 9001 quality systems across all production lines.
Introduction of Automated Shelling Lines and Robotic Pouring for enhanced safety and precision.
Integration of AI-driven defect detection and thermal analysis software in the casting process.
Digital Twin implementation: Creating a virtual replica of every mold for stress simulation.
Zero-carbon casting initiatives and full recycling of shell materials for sustainable manufacturing.
Located in Weifang, Shandong, JUNLONG Machinery sits at the heart of China’s industrial casting cluster. This proximity allows for unmatched supply chain agility. Our 60,000 square meter facility integrates the entire value chain:
For our clients in the US, Germany, Italy, and Canada, this means shorter lead times and a single point of responsibility. We don’t just ship parts; we provide "Risk Mitigation" for your global production schedule.
Versatile Engineering for High-Tech Sectors
Bogie components, brake discs, and structural connectors for subway and high-speed rail.
High-durability Q345 castings for harvesters, tractors, and soil preparation equipment.
Wear-resistant cable protectors and valve bodies designed for extreme pressure environments.
High-strength engine brackets and chassis components certified to automotive standards.
Backbones for excavators and loaders, ensuring structural integrity under heavy-duty loads.
Corrosion-resistant stainless steel castings for maritime hardware and propulsion units.
Advanced Analysis and Machining Infrastructure
Our facility is equipped with Spectrometers, Magnetic Particle Inspection (MPI), Ultrasonic Testing (UT), and CMM (Coordinate Measuring Machines) to ensure that every dimension and metallurgical property meets the blueprint precisely. We hold TS 16949 and UL certifications, reinforcing our commitment to global reliability.
Addressing Common Concerns in Precision Rail Casting
A: Typically, we achieve linear tolerances within CT4-CT6 per ISO 8062 standards. For tighter requirements, our CNC machining center can bring tolerances to within ±0.01mm.
A: Every batch undergoes non-destructive testing (NDT), including X-ray for internal porosity and MPI for surface cracks, especially for load-bearing railway components.
A: Yes, while our capacity is 20,000 tons, our flexible molding department is designed to handle both high-volume OEM runs and smaller, specialized custom batches.
A: We recommend 304L or 316L stainless steel, or specific alloy steels with specialized surface treatments like Zinc plating or powder coating, all of which we handle in-house.
A: Absolutely. Our 30+ engineering technicians work with your CAD files to suggest modifications that improve casting yield and reduce cost without compromising strength.
Industrial components engineered for longevity and performance
Join global industry leaders in Germany, USA, and Italy who trust JUNLONG for their precision casting needs. Our one-stop manufacturing solution reduces complexity and increases component reliability.
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