In the modern industrial landscape, metal safety grating is no longer a mere construction commodity; it is a critical component of risk management and operational efficiency. Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) stands at the forefront of this evolution. Founded in 1993, our journey has been defined by the "Craftsman Spirit," integrating scientific research with high-output machinery manufacturing to serve the global energy, mining, and infrastructure sectors.
Safety grating provides the essential anti-slip surface required for high-risk environments such as offshore oil rigs, chemical processing plants, and multi-level industrial warehouses. By focusing on "Information Gain" in our engineering processes, we provide clients with detailed load-bearing analysis, material fatigue data, and corrosion resistance profiles that exceed standard compliance requirements. Our commitment to ISO 9001:2015 and CE standards ensures that every square meter of steel grating we produce contributes to a safer, more sustainable industrial future.
Utilization of 6 sets of automatic banding robots and 12 self-developed pressure welding lines ensures structural integrity and aesthetic consistency across every batch.
Our municipal-level engineering center conducts rigorous salt spray testing, load-deflection analysis, and spectral material verification to guarantee reliability.
Recognized as a "Green Factory," NJMM integrates waste-heat recovery and closed-loop water systems in our hot-dip galvanizing processes.
We provide detailed engineering support, offering provision of detailed drawings and compatibility with Building Information Modeling (BIM) for seamless site installation.
Our technical roadmap includes full digitalization of the supply chain, allowing clients to track production status and material certificates in real-time.
NJMM's market distribution spans from the harsh maritime conditions of Oceania to the high-temperature refineries of the Middle East. Understanding local regulations—such as OSHA standards in North America, EN ISO 14122 in Europe, and AS 1657 in Australia—is central to our service model. We don't just ship products; we provide localized compliance assurance.
Petrochemical & Energy: In refineries and offshore platforms, our JG325/30/100 and JG405/30/100 series are the gold standard. Their ventilation and explosion-proof characteristics prevent the accumulation of hazardous gases while providing maximum traction.
Infrastructure & Urban Development: From trench covers in smart cities to platform walkways in metro stations, our "Longta" brand gratings are designed for longevity. The hot-dip galvanization finish provides decades of anti-corrosion protection, drastically reducing maintenance cycles and total cost of ownership (TCO).
Located in Ningbo, one of China's premier industrial hubs, NJMM benefits from direct access to high-quality steel mills. This proximity ensures a stable supply of raw materials even during global market fluctuations, allowing us to maintain competitive lead times.
Our dual production bases in East and North China, combined with Ningbo's world-class port facilities, enable efficient multi-modal transport. We offer "Fast Delivery" protocols for urgent infrastructure repairs and large-scale project rollouts.
With an annual capacity exceeding 50,000 metric tons, we handle projects ranging from boutique architectural facades to massive industrial complexes. We are a "Specialized and Special New" enterprise, focusing on high-tech grating solutions that others cannot replicate.
Our product range encompasses forge-welded steel grating, aluminum I-bar grating, and specialized stair treads. Each product is a result of meticulous engineering. For instance, our serrated steel gratings provide enhanced anti-slip properties (R13 rating) suitable for environments prone to oil spills or ice accumulation. The grid design optimizes "Light & Air Transmission" while maintaining a high strength-to-weight ratio, which significantly reduces the load on supporting steel structures.
NJMM was instrumental in drafting and revising the YB/T4001 steel grating standard in 2019, positioning us as a "Knowledge Leader" in the Chinese manufacturing sector. This deep expertise allows us to offer "Engineering-as-a-Service," where we consult on the optimal span-to-load ratios to minimize material waste without compromising safety.
The pricing is influenced by the current market rate of raw steel, the type of finish (hot-dip galvanized vs. powder coated), the complexity of the grid (serrated vs. plain), and the volume of the order. NJMM offers competitive pricing through high-efficiency automation.
We hold ISO 9001:2015, ISO 45001:2018, and ISO 14001:2015 certifications. Our products carry the CE mark and GHOST certification, ensuring they meet the stringent safety and environmental requirements of the EU and CIS regions.
Yes. We have 2 sets of dedicated irregular grating fabrication platforms. Using CAD/CAM integration, we can manufacture grating that fits perfectly around pipes, columns, and other structural obstacles with zero on-site cutting required.
When hot-dip galvanized to international standards (e.g., ASTM A123 or EN ISO 1461), our gratings can last 20-50 years depending on the specific salinity and humidity levels. We provide material certificates with every shipment.
Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) is more than a factory; we are a partner in global industrial progress. Our mission is to provide top-quality products & services with global expertise, building a harmonious environment for employees to grow alongside the company. We continue to invest in carbon-neutral manufacturing and AI-driven quality control to remain the preferred supplier of steel grating solutions worldwide.
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