In the high-stakes environment of offshore oil platforms, wind farms, and maritime vessels, the integrity of walking surfaces is not just a matter of convenience—it is the foundation of operational safety. China's emergence as a premier offshore grating supplier is driven by the convergence of metallurgical expertise, automated precision, and the aggressive demands of the global energy transition.
Founded in 1993, Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) has evolved into a titan of the steel grating industry. Integrating scientific research, precision machinery manufacturing, and engineering construction, we provide the skeletal structure for the world's most challenging offshore projects. With 12 automated welding lines and a 50,000-ton annual capacity, we represent the pinnacle of Chinese manufacturing authority.
The global offshore grating market is currently witnessing a CAGR of 5.4%, propelled by deep-water exploration in the South China Sea and massive offshore wind deployments in the North Sea. NJMM serves critical nodes in South America, Europe, Oceania, and the Middle East, bridging the gap between high-volume production and site-specific engineering requirements.
Traditional carbon steel grating is rapidly giving way to high-performance alloys and advanced surface treatments. For offshore applications, NJMM utilizes Hot-Dip Galvanization (ISO 1461 compliant), providing a sacrificial zinc layer that withstands corrosive saline mists for decades. Our roadmap includes the integration of Industry 4.0, utilizing robotic banding and laser-cut tailoring to ensure zero-tolerance fitment on complex platform geometries.
Implementation of AI-driven defect detection in forge-welded joints to ensure 100% load-bearing reliability.
Transitioning to zero-emission galvanizing processes and closed-loop water recycling to meet global ESG standards.
Development of ultra-lightweight Aluminum and Stainless Steel hybrids for topside weight reduction in floating production storage and offloading (FPSO) units.
Widely used in petrochemical and refinery environments. Recommended: JG255/30/100, JG325/30/100. Advantages: Excellent ventilation, heat dissipation, and explosion-proof properties.
Designed for port terminals, mining, and offshore engineering. Recommended: G505/30/100, JG1008/30/100. Capable of handling extreme static and dynamic loads from heavy machinery.
Crucial for vertical movement in wet, oily offshore conditions. NJMM's JT1-JT8 series offers various nosing options (serrated, checker plate) to maximize grip and visibility.
Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) was founded in 1993, is mainly engaged in the design and manufacturing of steel grating, railings, platforms and other light steel structures. It is a modern comprehensive enterprise integrating scientific research and design, machinery manufacturing and engineering construction.
We currently have 2 production bases in the East and North of China, there are 12 steel grating auto welding product lines, as well as complete auxiliary processing equipment and testing facilities, like robots welding, laser cutting, digital control panel tailoring etc. Our annual output of steel gratings and allied products, including trench covers, stair treads, stanchions, handrails, fences, is over 50,000 metric tons. NJMM offers engineering service and support, including the design and installation of the grating solutions and the provision of detailed drawings if required.
NJMM had got the ISO9001:2015 Quality Management System Certification, ISO45001:2018 Occupational Health System Certification, ISO14001:2015 Environmental Management System Certification, CE etc.
NJMM markets its products mainly to South America, Europe, Oceania, Africa, West Asia, Southeast Asia, Middle East and other countries in the world.
Jiulong
