Founded in 1993, Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) has evolved into a global titan in the design and fabrication of steel grating and peripheral light steel structures. Our 30-year journey is anchored by a commitment to E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness), making us the preferred partner for heavy-duty industrial platforms worldwide.
Operating two state-of-the-art production bases in Eastern and Northern China, we leverage 12 automated pressure-welding lines and advanced robotic assembly to deliver precision-engineered solutions. With an annual capacity exceeding 50,000 metric tons, we bridge the gap between high-volume manufacturing and bespoke engineering consultation.
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The global demand for industrial grating is projected to grow significantly as infrastructure modernization accelerates in Southeast Asia and the Middle East. Steel grating has transitioned from a simple walking surface to a critical safety component in petrochemical, mining, and renewable energy sectors.
Sustainability is the new frontier. We are seeing a massive shift toward "Green Steel" fabrication and high-durability coatings that reduce the total cost of ownership (TCO). Modular platform designs are replacing traditional on-site welding to ensure faster deployment and higher safety standards.
Integration of AI in manufacturing—such as our laser cutting and digital control panel tailoring—allows for "zero-error" fabrication. The future lies in Smart Platforms where gratings are integrated with IoT sensors for structural health monitoring in offshore environments.
Every region faces unique environmental challenges. Our engineering team specializes in tailoring grating solutions that exceed local regulatory requirements.
Challenge: Corrosive atmospheres and explosion risks.
NJMM Solution: Hot-dip galvanized serrated steel grating (JG325/30/100). Superior ventilation and non-slip performance are critical for safety in high-altitude refinery walkways.
Challenge: Extreme load requirements and grime accumulation.
NJMM Solution: Heavy-duty press-locked grating (G705/30/100). Designed to prevent water, snow, and debris accumulation while supporting massive machinery loads.
Challenge: Aesthetic requirements and salt-spray resistance.
NJMM Solution: Aluminum I-Bar grating and marine-grade stainless steel options. Lightweight yet durable, perfect for coastal walkways and airport drainage systems.
NJMM doesn't just follow standards—we help write them. We participated in drafting and revising the YB/T4001.2019 Steel Grating Standard.
Forge-welding uses high pressure and heat to fuse twisted cross bars with load-bearing bars, creating a monolithic structure. This ensures superior structural integrity and eliminates internal voids where corrosion usually starts.
Serrated grating is essential for oily, icy, or wet environments (like oil rigs) to provide extra grip. Plain grating is more comfortable for walking and easier to clean, making it ideal for indoor commercial or light industrial use.
Our products comply with international standards including BS4592, ANSI/NAAMM (MBG531), and the Chinese YB/T4001. We are CE and ISO certified to ensure global site compliance.
Yes, we offer comprehensive engineering support, providing detailed layout drawings and installation guides tailored to your specific project geometry.
Jiulong
