In the modern industrial era, grating steps represent more than just access points; they are critical safety components engineered to withstand extreme environmental stresses. From offshore oil rigs to high-traffic urban infrastructure, the demand for galvanized steel stair treads has reached unprecedented levels. As a leading manufacturer, Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) stands at the intersection of metallurgy and architectural safety.
Procurement departments globally are moving away from commodity-based buying toward value-driven partnerships. Reliability is defined by three pillars: Load-Bearing Consistency, Corrosion Resistance (Hot-Dip Galvanization), and Anti-Slip Performance. NJMM addresses these requirements by integrating digital design workflows that ensure every stair tread is optimized for its specific structural environment.
NJMM utilizes 6 sets of automatic banding robots and laser cutting systems to achieve tolerances within 0.5mm. This precision ensures that irregular grating profiles fit perfectly on-site, reducing installation labor costs by up to 30%.
With two massive production bases in East and North China, we mitigate regional logistics risks. Our "Green Factory" certification reflects a commitment to sustainable manufacturing, essential for global partners adhering to ESG reporting standards.
Our digital control panel tailoring allows for rapid prototyping and mass customization. Whether it’s JT1 or JT8 treads, our system ensures structural integrity is maintained across diverse load requirements.
Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) was founded in 1993 and has evolved into a powerhouse of steel structure design. As a modern comprehensive enterprise, we integrate scientific research with industrial-scale manufacturing. Our mission is to provide top-quality products & services with global expertise, fostering a harmonious environment for employees and contributing to the advancement of both industry & society.
We believe quality is like life, and the product is character. This philosophy led us to participate in drafting and revising the YB/T4001 steel grating standard in 2019. Our certifications include:
JG255/30/100 and JG405/30/100 series are recommended for their superior ventilation and explosion-proof properties. Crucial for volatile environments.
Heavy-duty G505/30/100 treads satisfy extreme loading requirements in port terminals and offshore engineering where saltwater corrosion is a constant threat.
Our "Modern Style" gratings offer neat, simple appearances with high durability for parking lots, waterworks, and transportation hubs.
We provide full-lifecycle support: From initial design consultation and provision of detailed CAD/BIM drawings to installation guidance. Our hot-dip galvanization finish ensures a maintenance-free lifespan, significantly reducing the Total Cost of Ownership (TCO) for large-scale projects.
Selection depends on the spans and loading requirements. For instance, JT1 and JT2 are ideal for standard industrial walkways, while JT7 and JT8 offer specialized profiles for higher aesthetic or unique architectural requirements. Our engineering team can provide load tables for specific spans.
Hot-dip galvanization (per ISO 1461) provides a metallurgical bond between the steel and the zinc coating. This offers "sacrificial protection," meaning even if the surface is scratched, the surrounding zinc will protect the exposed steel from rust.
Yes. Our 2 sets of dedicated irregular grating fabrication platforms and robotic welding systems allow us to produce complex geometries without compromising the structural integrity of the forge-welded bars.
With an annual output of over 50,000 tons and 12 automated lines, we maintain high throughput. Standard orders typically ship within 3-4 weeks, depending on customization requirements and regional logistics.
Jiulong
