In the landscape of modern industrial and commercial architecture, Concrete Pan Stairs represent the pinnacle of durability and versatility. As a leading manufacturer, we understand that these systems are more than just structural elements; they are critical safety components. By combining a rigid steel frame (the "pan") with a concrete infill, project managers achieve superior fire resistance, sound dampening, and load-bearing capacity.
Our manufacturing philosophy is rooted in the E-E-A-T principles. With decades of hands-on Experience in steel fabrication, our Expertise in metallurgical science ensures that every stair pan meets rigorous Authoritative standards like ISO 9001 and CE. This builds Trustworthiness with global procurement teams who cannot afford structural failures in large-scale infrastructure projects.
Sourcing from a specialized China factory like Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) provides a competitive edge. We bridge the gap between high-volume production and precision engineering, offering global enterprises the ability to scale their projects while maintaining cost-efficiency through advanced automated welding and laser-cutting technologies.
Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM), founded in 1993, has evolved into a powerhouse in the light steel structure industry. We specialize in the comprehensive design and manufacturing of steel grating, railings, platforms, and specifically, high-performance stair solutions. Our facilities serve as a modern comprehensive enterprise, integrating scientific research with heavy-duty manufacturing and engineering construction.
Our two production bases in East and North China are equipped with cutting-edge technology: welding robots, laser cutting machines, and digital control tailoring systems. This automation ensures that every "Longta" brand steel grating and stair tread maintains dimensional precision that exceeds industry standards (YB/T4001-2019).
Modern construction demands perfect synchronization. We provide detailed 3D models and CAD drawings that integrate seamlessly into Building Information Modeling (BIM) workflows, reducing on-site errors and accelerating installation timelines.
As an ISO14001 certified "Green Factory," we utilize eco-friendly hot-dip galvanization processes and optimize steel consumption to help our clients achieve LEED and BREEAM certifications for their projects.
Beyond standard galvanization, we are implementing hybrid coating systems (Duplex coatings) that combine galvanizing with powder coating, extending the lifespan of stair pans in highly corrosive offshore and chemical environments.
Concrete pan stairs are comprised of a steel carrier (the "pan") which serves as permanent formwork for concrete. Our designs focus on three critical technical pillars:
Did you know that the "pan" thickness directly influences the vibration frequency of the stairwell? Our engineering team uses Finite Element Analysis (FEA) to ensure that our stairs exceed the minimum comfort standards for high-traffic public infrastructure, a detail often overlooked by standard wholesalers.
Our products fully comply with EN 1090 and carry the CE mark, essential for all structural steel products in the European Economic Area. We provide full traceability and Performance Declarations (DoP).
We manufacture stair treads and pans according to NAAMM (National Association of Architectural Metal Manufacturers) MBG 531 standards, ensuring compliance with OSHA safety regulations for walking/working surfaces.
For regions like the GCC, we offer enhanced hot-dip galvanization according to ASTM A123, providing up to 85 microns of zinc coating to combat high humidity and salinity.
In environments where oil spills and chemical exposure are common, our galvanized serrated stairs provide the necessary traction and chemical resistance to ensure worker safety during critical maintenance operations.
For shopping centers, airports, and parking structures, concrete pan stairs offer the perfect mix of aesthetic cleanliness (once filled) and high-load capacity for mass pedestrian movement.
Concrete pan stairs provide superior fire ratings, significantly better sound insulation (reducing the 'hollow' clanging of metal), and a more finished look suitable for public-facing commercial environments. They are also generally more cost-effective for large-scale projects.
NJMM employs a multi-stage Quality Control (QC) process, including raw material spectral analysis, automated weld strength testing, and ultrasonic thickness measurement of the galvanization layer. All processes are certified under ISO 9001:2015.
Yes. Our in-house engineering team provides detailed shop drawings. We utilize digital control tailoring and laser cutting to produce custom lengths, widths, and nosing profiles that match your structural engineer's exact requirements.
With 12 automated production lines, we offer industry-leading turnaround times. Manufacturing usually takes 10-20 days depending on volume, with shipping to major ports (USA, Europe, Middle East) typically taking 25-35 days.
Absolutely. Our hot-dip galvanized finish provides a metallurgical bond between the steel and zinc, creating a protective barrier that is highly resistant to snow, rain, salt spray, and UV exposure.
Jiulong