Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM), founded in 1993, represents the pinnacle of industrial steel fabrication. As a premier Heavy Duty Grating Manufacturer, we have spent three decades refining the nexus between structural integrity and cost-efficiency. With two massive production bases in East and North China, our infrastructure is designed to handle the most demanding global projects.
Our commitment to the E-E-A-T principles is verified by our active participation in drafting the YB/T4001 Steel Grating Standard. We don't just follow industry norms; we define them. Our annual capacity of over 50,000 metric tons ensures that whether you are sourcing for a local municipal project or a multi-billion dollar petrochemical refinery, NJMM has the scalability to deliver.
Square Meters Plant Area
Auto-Welding Lines
Annual Tons Produced
Years Experience
Moving beyond standard Q235 carbon steel, NJMM is pioneering the use of high-strength alloys and composite-coated steel that offer 40% higher corrosion resistance while reducing the overall weight of heavy-duty platforms.
By implementing BIM (Building Information Modeling) integration, our engineering team can simulate load stresses on grating designs before production, ensuring 100% safety compliance for offshore and mining environments.
Our future focus includes eco-friendly galvanization processes that reduce zinc waste by 15% through precision induction heating, aligning with global ESG (Environmental, Social, and Governance) requirements.
Leveraging the efficiency of Chinese manufacturing to provide unparalleled value to global enterprises.
NJMM manages the entire lifecycle—from raw steel procurement to laser cutting, automated forge-welding, and hot-dip galvanizing. This vertical integration eliminates third-party delays and ensures total quality control.
With 12 automated lines, we can pivot between small-batch custom orders and large-scale wholesale production within 48 hours, providing a buffer against market volatility.
Situated in Ningbo, one of the world's busiest ports, we provide streamlined shipping solutions that reduce transit times to North America and Europe by up to 15%.
| Industry Sector | Critical Requirement | NJMM Solution | Recommended Products |
|---|---|---|---|
| Petrochemical & Refining | Anti-explosion, Corrosion resistance | High-micron Hot-dip Galvanized Grating | JG325/30/100, JG405/30/100 |
| Mining & Heavy Processing | Extreme Load Bearing | Custom Heavy-duty Bar Grating | JG705/30/100, JG1008/30/100 |
| Civil Infrastructure | Public safety, Anti-slip | Serrated Steel Grating & Stair Treads | JT1 - JT8 Series |
| Marine & Offshore | Salt-spray resistance | Aluminum I-Bar or Specialized Alloy Grating | Aluminum 25mm-40mm Series |
Modern enterprises require more than just a product; they need a partner who understands the intricacies of international trade. NJMM provides:
Every region has its own safety standards. Our products are engineered to exceed:
NJMM (Ningbo Jiulong Machinery Manufacturing Co., Ltd) was founded in 1993. It is a modern comprehensive enterprise integrating scientific research and design, machinery manufacturing and engineering construction. We believe our products are your best choice.
Widely used in petrochemical, light chemical, refinery. Advantages: Ventilation, lighting, heat dissipation, explosion-proof, and anti-skid.
Widely used in port terminal, steel industry, mining, and shipbuilding. Advantage: Strong loading capacity for specific conditions.
Used in gardens, waste disposal, aquaculture, pharmaceutical industry. Advantage: Modern style, neat appearance, and easy installation.
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