The global demand for industrial stair treads has shifted from basic functionality to integrated safety ecosystems. As a Tier-1 supplier, NJMM recognizes that modern industrial infrastructure—ranging from offshore oil rigs to high-tech pharmaceutical plants—requires more than just steel. It requires structural integrity, corrosion resistance, and ergonomic safety.
In the current global industrial landscape, the rise of "Smart Factories" and the transition to green energy (Hydrogen, Solar, Wind) have necessitated specialized access solutions. Industrial stair treads must now withstand extreme chemical exposures, heavy dynamic loads, and provide high-visibility safety nosing to prevent occupational hazards. Our role as a leading manufacturer in China is to bridge the gap between high-volume production and bespoke engineering excellence.
Meeting OSHA and Eurocode standards to ensure zero-accident environments in petrochemical and mining sectors.
Optimized for ventilation and heat dissipation, essential for power plant and refinery applications.
Hot-dip galvanization technology that extends product lifespan to 50+ years, reducing total carbon footprint.
Founded in 1993, Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) has evolved into a cornerstone of the steel grating and industrial structure industry. With over 30 years of manufacturing expertise, we operate two massive production bases in East and North China, covering an area of 450,000 square meters.
Our competitive advantage lies in our 12 automated pressure welding lines and specialized robotic welding clusters, ensuring that every stair tread and grating panel meets the highest precision standards. With an annual output exceeding 50,000 metric tons, NJMM is not just a supplier; we are a strategic partner for global engineering giants.
Tons Annual Output
Auto-Welding Lines
Years Experience
m² Production Area
Our R&D focus is driving the next generation of industrial safety products through AI-enhanced manufacturing and Material Science Innovation.
Implementing 6-axis welding robots for complex, non-standard stair tread geometries and custom platform shapes.
Exploring advanced alloy coatings and duplex surface treatments to double the resistance in offshore environments.
Integration with BIM (Building Information Modeling) to provide seamless design-to-delivery workflows for large-scale EPC projects.
Quality Management System
European Structural Safety
Occupational Health & Safety
Environmental Management
Standard industrial treads with welded fixing and checker plate nosing. Best for permanent structures where cost-efficiency is priority.
Bolted fixing stair treads. Allows for easy replacement and maintenance. Includes non-slip nosing for enhanced worker safety.
Advanced serrated versions and heavy-load configurations for vertical access in mines and offshore oil platforms.
Common widths range from 215mm to 305mm, while lengths depend on the structural span, typically between 600mm and 1200mm. NJMM provides full customization based on YB/T4001 or ANSI/NAAMM standards.
HDG creates a metallurgical bond with the steel, providing cathodic protection that prevents rust even if the surface is scratched. It is maintenance-free for decades, even in coastal environments.
Yes, we have a dedicated engineering department that provides detailed CAD and 3D drawings (BIM compatible) for complex platform and stair systems to ensure perfect site fitment.
Serrated surfaces are recommended for areas prone to oil, ice, or grease. Plain surfaces are sufficient for dry indoor environments and are easier to clean.
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Jiulong
