In the high-stakes environment of heavy industry—spanning petrochemical plants, offshore drilling rigs, and massive infrastructure projects—the choice of flooring material is not merely a construction detail; it is a critical safety imperative. Serrated Bar Grating represents the pinnacle of anti-slip engineering, designed specifically to mitigate risks in environments plagued by oil, moisture, and debris.
At NJMM (Ningbo Jiulong Machinery Manufacturing Co., Ltd), we recognize that true quality comes from a fusion of material science and precision manufacturing. By employing advanced forge-welding technology, our serrated products offer an unparalleled strength-to-weight ratio, ensuring that structural integrity is maintained even under extreme load-bearing conditions.
Established in 1993, NJMM has spent over three decades refining the art of steel grating and light steel structures. Our legacy is built on thousands of completed projects globally.
We hold ISO9001:2015, ISO45001:2018, and ISO14001:2015 certifications, alongside international CE and GHOST marks, ensuring full compliance with global safety standards.
NJMM doesn't just manufacture; we innovate. Having participated in drafting the YB/T4001 steel grating standards, we lead the industry in technical specification accuracy.
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The future of Serrated Bar Grating lies in the intersection of smart materials and sustainable production. NJMM is currently investing in high-tensile alloy research to further reduce material consumption while increasing spans. Our roadmap includes:
NJMM embodies the Industry 4.0 philosophy. With 12 self-developed automatic pressure welding lines and 6 sets of automatic banding robots, our production environment minimizes human error and maximizes efficiency. For global enterprises, this translates into supply chain resilience.
Robot welding and laser cutting ensure every serration is perfectly aligned for optimal grip and aesthetics.
With an annual capacity of over 50,000 tons, we can handle the most massive infrastructure requirements without compromising lead times.
Full-traceability digital systems track every batch from raw steel entry to final hot-dip galvanizing.
Our products are engineered for versatility across several macro-industrial sectors:
Providing safe walkway platforms that resist the corrosive nature of salt spray and hydrocarbon spills.
Standardized ditch covers and stair treads for high-traffic public works, ensuring public safety and long-term durability.
Heavy-duty gratings capable of supporting machinery loads while allowing for the drainage of slurry and waste material.
Navigating international standards can be complex. NJMM provides localized engineering support to ensure our products meet specific regional requirements:
Procurement teams today look for more than just a product; they look for a strategic partner. NJMM offers:
Serrated grating offers superior slip resistance, especially in wet or oily conditions. The notched surface provides extra grip, making it the preferred choice for industrial safety walkways and stair treads.
Depending on the project scale, NJMM's automated lines allow for rapid turnaround. Standard configurations often ship within 2-4 weeks, while large-scale custom fabrications are scheduled based on project milestones.
Hot-dip galvanization provides a thick, durable zinc coating that metallurgically bonds to the steel. This offers unmatched protection against rust and corrosion, even in harsh maritime or chemical environments.
While we primarily manufacture, our engineering team provides comprehensive installation guides and detailed assembly drawings. For major projects, technical consultation via video or on-site visits can be arranged.
Yes, we are a certified "Green Factory." Our processes are optimized to reduce waste and energy consumption, aligned with ISO14001 environmental management standards.
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 believe our products are your best choice. NJMM had got the ISO9001 Quality System Certificate, CE certificate, GHOST certificate and other international certificates.
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