Abstract: In the modern industrial landscape, drainage systems are no longer passive infrastructure elements. They are critical components that ensure site safety, hygiene compliance (HACCP/IFS), and structural longevity. Stainless Steel Gully Gratings, particularly those with CE certification, represent the pinnacle of fluid management technology, combining metallurgical resilience with precision hydraulic engineering.
Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM), established in 1993, has stood at the forefront of this evolution. By integrating China Factory 4.0 principles—automated pressure welding, robotic tailoring, and AI-driven quality inspection—we provide "Information Gain" to our global partners by delivering not just a product, but a verified engineering solution with a 30-year legacy of reliability.
Our R&D focuses on the transition from traditional SS304/SS316L to high-performance austenitic and duplex stainless steels for extreme environments. The roadmap includes:
Our stainless steel gratings are designed to withstand high-salinity environments, offering superior resistance to chloride-induced pitting. Essential for FPSOs and port terminals.
Meeting stringent FDA and CE hygiene standards, our gully gratings feature no-gap designs to prevent bacterial nesting, critical for cleanroom and food production floors.
Used in precision cooling airflows and heavy-duty cabling trenches, ensuring structural stability under the weight of server racks while maintaining high ventilation rates.
Experience: Founded in 1993, three decades of tackling complex structural challenges across 6 continents.
Expertise: NJMM participated in drafting and revising the China Steel Grating National Standard (YB/T4001) in 2019. We define the standard, we don't just follow it.
Authoritativeness: ISO9001:2015, ISO45001:2018, and ISO14001:2015 certified, complemented by CE and GHOST certifications for seamless market entry in Europe and Russia.
Trustworthiness: Recognized as a "Green Factory" and "High-Tech Enterprise," ensuring a sustainable and ethical supply chain for Fortune 500 partners.
NJMM operates two massive production bases in East and North China. Our 12 self-developed automatic pressure welding lines and 6 automatic banding robots provide a massive throughput capacity of over 50,000 tons annually. This scale allows us to buffer against global supply chain shocks, offering stable lead times and competitive cost structures without compromising on metallurgical quality.
Detailed engineering drawings (AutoCAD/BIM) and installation support reduce on-site processing time to zero.
Dedicated service networks in 13+ regions ensure compliance with local building codes and logistical nuances.
Our "Green Factory" designation means your procurement fulfills Corporate Social Responsibility requirements.
Depending on the application, we manufacture according to EN 1433 standards, ranging from Class A15 (Pedestrian) to Class F900 (High-load airports). Our technical team provides structural calculations to ensure the grating thickness and bar spacing meet your specific safety factors.
While galvanized steel is cost-effective, stainless steel is mandatory in environments with extreme pH levels, chemical exposure, or where hygiene is paramount. Stainless steel forms a self-healing chromium oxide layer, offering a lifecycle cost benefit by eliminating maintenance and replacement needs over 25+ years.
Our pressure welding machines use high-voltage resistance to fuse the bars at the molecular level. Post-production, we utilize ultrasonic and visual AI inspection systems to detect any micro-fissures, ensuring that every panel delivered under the CE mark is structurally sound.
Yes. With our 2 sets of irregular grating fabrication platforms and laser tailoring units, we can manufacture gratings to fit any architectural curve or machinery footprint based on your CAD files.
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.
NJMM offers engineering service and support, including the design and installation of the grating solutions and the provision of detailed drawings if required. NJMM had got the ISO9001 Quality System Certificate, CE certificate, GHOST certificate and other international certificates. We believe our products are your best choice.
Jiulong
