Engineered for Extreme Durability and Industrial Precision
Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) stands as a titan in the global steel fabrication landscape. Established in 1993, we have evolved from a specialized workshop into a modern comprehensive enterprise integrating scientific research, high-end machinery manufacturing, and complex engineering construction. Our core expertise lies in the design and fabrication of steel grating, industrial railings, complex walkways, and light steel structures.
With a strategic footprint across East and North China, our two massive production bases span over 450,000 square meters. We operate 12 state-of-the-art automatic pressure welding lines, complemented by robotic welding stations and precision laser cutting systems. This industrial powerhouse enables an annual output exceeding 50,000 metric tons, serving critical infrastructure projects worldwide.
NJMM is not just a manufacturer; we are a standard-setter. We participated in drafting the Chinese steel grating standard YB/T4001-2019. Our quality is backed by:
Production Area (m²)
Auto-Welding Lines
Annual Tonnage (Tons)
Years of Expertise
Leading the Transition to Industry 4.0 in Steel Fabrication
Integration of AI-driven thermal sensors in our 12 welding lines ensures zero-defect joints. Future iterations will include real-time ultrasonic testing (UT) data streaming to cloud-based quality dashboards.
We are pioneering BIM (Building Information Modeling) integration, allowing engineers to simulate load-bearing stress on safety grating walkways before the first bar is even cut.
Our "Green Factory" initiative focuses on closed-loop zinc recovery and low-emission heating for hot-dip galvanization, drastically reducing the carbon footprint per ton produced.
Critical Components for Global Energy and Logistics
Industrial safety grating is the "skeletal system" of modern infrastructure. At NJMM, we provide specialized solutions across diverse sectors:
High-corrosion environments require our serrated gratings with 80-120 micron hot-dip galvanizing. Our products provide anti-slip security on oil rigs and chemical refineries in South America and the Middle East.
For port terminals and heavy mining, we recommend JG705/30/100 series, capable of sustaining massive static and dynamic loads while maintaining high ventilation and drainage properties.
Supporting the solar and wind sectors with lightweight aluminum I-bar gratings that offer high strength-to-weight ratios, essential for high-altitude maintenance platforms.
Leveraging Strategic Location and Advanced Manufacturing Synergy
Located near one of the world's largest ports, NJMM utilizes the "Ningbo-Zhoushan" shipping hub to minimize lead times for international clients. Our supply chain is vertically integrated, meaning we control everything from raw steel procurement to the final galvanization process.
Our ERP systems track every batch of steel from the mill to the final project site. This provides "Chain of Custody" transparency, critical for Tier-1 engineering firms in Europe and North America who demand rigorous documentation.
Beyond Manufacturing: A Partner in Project Lifecycle Management
We navigate the complex landscape of international standards (ASTM, BS, AS, EN), ensuring that every grating panel meets the legal and safety requirements of the destination country.
From irregular shapes to specific "cut-out" requirements for piping, our laser-guided cutting systems ensure precision that reduces on-site installation time by up to 40%.
Total Cost of Ownership isn't just about the purchase price. Our gratings are designed for zero maintenance for 20+ years, offering the best value over the project's life.
Expert Insights into Safety Grating Walkway Systems
Browse our comprehensive range of industrial infrastructure components
Jiulong