Premium Industrial Steel Solutions for Auckland, Christchurch, and Wellington Markets. Engineered for Resilience, Built for Safety.
New Zealand's industrial sector is uniquely shaped by its geography and regulatory environment. From the geothermal power plants in the Bay of Plenty to the bustling dairy processing facilities in Waikato, the demand for high-durability stair treads has never been higher. As a specialist supplier, we recognize that New Zealand standards, particularly AS/NZS 3661 (Slip Resistance) and AS/NZS 1170 (Structural Design Actions), dictate the engineering requirements for every platform and walkway.
Coastal corrosion is the primary challenge in NZ. With major industrial hubs like Auckland Port and Tauranga located near the sea, standard steel often fails within years. Our Hot-Dip Galvanized (HDG) solutions are specifically treated to withstand high-salinity environments, offering a service life exceeding 25 years in most Kiwi industrial settings.
Following the Christchurch and Kaikōura earthquakes, structural integrity for industrial stairs is non-negotiable. Our stair treads feature reinforced end-plates and specialized welding patterns that allow for the "ductility" required during seismic events, ensuring safe egress paths during emergencies.
Founded in 1993, Ningbo Jiulong Machinery Manufacturing Co., Ltd is a modern comprehensive enterprise integrating scientific research, machinery manufacturing, and engineering construction. We specialize in the design and manufacturing of steel grating, railings, platforms, and light steel structures.
We currently operate 2 production bases in China, housing 12 auto-welding lines. Our annual output exceeds 50,000 metric tons, serving global markets with CE, ISO9001, and GHOST certifications.
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At NJMM, we have transitioned from traditional fabrication to Industry 4.0 standards. Our facility utilizes 6 sets of automatic banding robots and 2 sets of irregular grating fabrication platforms. For the NZ buyer, this means 100% dimensional accuracy—essential for massive infrastructure projects like the City Rail Link (CRL) in Auckland, where precision is paramount.
New Zealand's distance from major steel hubs can lead to volatile pricing. By partnering with NJMM, NZ manufacturers gain direct access to one of the world's most stable steel supply chains. We minimize "Information Silos" by providing detailed digital twins of our products, allowing your engineering team to integrate our stair treads into 3D models before they even ship.
Non-slip, easy-to-clean galvanized treads for Waikato dairy processing plants. Meets stringent hygiene and safety codes.
Corrosion-resistant grating designed for the high-temperature and sulfur-rich air of Rotorua's energy sector.
Heavy-duty G705/30/100 treads capable of handling high foot traffic and marine environmental stress in Lyttelton Port.










Yes. Our industrial stair treads are manufactured to exceed YB/T4001.1-2007, which aligns with the structural performance requirements of AS/NZS 1170. We provide full mill test certificates and HDG compliance documentation.
Typical production for standard orders is 14-21 days. Shipping to major New Zealand ports usually takes an additional 15-20 days. We offer expedited "Supply Chain Green Channels" for urgent infrastructure repairs.
Absolutely. For NZ’s rain-prone outdoor industrial areas or oil-heavy workshop floors, we recommend our "Serrated Forge Welded" series, which provides the highest slip-resistance rating (R13 equivalent).
Yes, we specialize in custom fabrication. Our digital control panel tailoring allows us to create treads for existing non-standard staircases common in older Auckland manufacturing sites.
Partner with NJMM for world-class steel fabrication and unmatched supply chain resilience.
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