In the high-stakes world of industrial infrastructure, the selection of flooring material is not merely a matter of cost—it is a critical decision affecting safety, structural longevity, and operational efficiency. I Bar Grating, characterized by its unique "I" shaped cross-section of the bearing bars, has emerged as the premier choice for engineers seeking a superior strength-to-weight ratio. As a leading China Famous I Bar Grating Manufacturer, Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) has spent three decades refining the metallurgical and structural properties of this specialized product.
The manufacturing of high-quality I-Bar grating at NJMM involves a complex synergy of advanced metallurgy and robotics. Founded in 1993, our facility in Ningbo has pioneered the use of digital control panel tailoring and robot welding to ensure every panel meets the rigorous ISO9001:2015 and CE standards.
Our 12 self-developed automatic pressure welding lines utilize high-voltage electrical resistance combined with hydraulic pressure to fuse cross bars and I-bars into a single, permanent unit. This eliminates the structural weaknesses often found in manual welding.
Following fabrication, products undergo a rigorous HDG process. This provides a multi-layered barrier against corrosion, crucial for petrochemical and offshore environments. The finish extends the lifecycle of the product by 20-30 years in harsh conditions.
With 2 sets of irregular grating fabrication platforms, we provide tailored solutions for complex layouts, ensuring zero on-site processing and significantly reducing installation time and labor costs.
In the current global economic landscape, supply chain stability is paramount. NJMM leverages China’s unparalleled industrial ecosystem to provide a competitive edge. Our two production bases in East and North China ensure that we remain operational even during regional localized disruptions.
Our resilience is built on three pillars:
I Bar Grating is not a one-size-fits-all product. Its application varies significantly by region and industry:
In offshore oil rigs, I-Bar's serrated surfaces are critical for anti-slip performance in wet/oily conditions. Its open-grid structure prevents the accumulation of water and debris.
Used in trench covers and ventilation screens for transit hubs. The aesthetic "clean" lines of I-Bar grating fit modern architectural standards while meeting strict ADA and CE safety requirements.
Heavy-duty JG705/30/100 series provide the loading capacity required for heavy machinery platforms while resisting the corrosive chemical byproduct of modern refining processes.
As we look toward 2030, NJMM is committed to integrating "Smart Structural" features into our grating products. The future of I Bar Grating lies in the intersection of material science and IoT.
Our R&D roadmap includes:
NJMM is not just a manufacturer; we are an engineering partner. We understand that every country has its own building codes and safety regulations. That is why we offer comprehensive technical support:
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.
Company Vision: To be the leader in steel grating market, the preferred supplier & A good corporate citizen. Enterprise Mission: To provide the top quality products & services with global expertise; To build a harmonious environment for employees growing together with the company; To contribute to the advancement of both industry & society.
Jiulong
