Our steel structure products are manufactured in a modern facility equipped with advanced CNC cutting machines, robotic welding systems, automated drilling lines, and professional surface treatment equipment. By integrating automated technology with skilled engineering teams, we ensure consistent quality, high efficiency, and precise fabrication for every project.
Compared to traditional manual processes, our robotic welding systems guarantee smoother welds, higher strength, and minimal deviation, all certified under ISO 9001:2015, EN1090, and AWS standards. Each component undergoes rigorous dimensional inspection and ultrasonic weld testing, ensuring structural integrity and long service life.
We offer flexible design and fabrication services for industrial workshops, warehouses, multi-storey buildings, and agricultural facilities. From H-beam welding to surface galvanizing, all processes are carried out under strict quality control. With a daily capacity of over 500 tons of prefabricated steel, we can meet both small-scale customized orders and large-scale international projects.
| Category | Specification |
|---|---|
| Main Structure | H-section welded steel beams and columns, Q235/Q355 grade, hot-rolled or welded |
| Welding Process | Fully automatic robotic welding with ultrasonic inspection to ensure precision |
| Secondary Structure | C/Z-section galvanized steel purlins, anti-corrosion treated |
| Roof System | Corrugated steel sheet / EPS, PU, Rockwool sandwich panels, thickness 50–150mm |
| Wall System | Color-coated steel sheet / Sandwich panels, customizable thickness & insulation |
| Surface Treatment | Shot blasting (Sa2.5) + epoxy zinc-rich primer + polyurethane topcoat, or hot-dip galvanization |
| Crane System | Single/Double girder overhead cranes, max lifting capacity 5–50 tons |
| Anti-Corrosion | ≥ 80μm dry film thickness, salt spray tested up to 500h |
| Fasteners | High-strength bolts, 8.8S / 10.9S grade, anti-rust galvanized |
| Design Life | 25–50 years depending on material and coating system |
| Wind Resistance | Designed for 0.35–0.85 kN/m², customizable based on region |
| Snow Load | Designed for 0.35–1.2 kN/m², customizable based on region |
| Seismic Resistance | Meets Seismic Fortification Intensity up to Grade 8 |
| Fire Resistance | Sandwich panels available with Class A / B fireproof performance |
| Thermal Insulation | Rockwool or PU panels with thermal conductivity ≤ 0.038 W/m·K |
| Fabrication Accuracy | Dimensional tolerance ≤ ±2mm, hole position tolerance ≤ ±1mm |
| Quality Control | ISO 9001:2015, EN1090, AWS certified welding; robotic inspection records provided |
| Production Capacity | Automated production lines, daily output up to 500 tons of prefabricated steel |
| Delivery | Shipped in 40ft HQ containers with numbered packing list and installation drawings |
| Installation Method | On-site bolted assembly with optional crane support |
| Optional Systems | Skylights, ventilation, gutter & downpipe systems, solar panel integration |
With CNC plasma and flame cutting machines, we achieve precise steel component processing, ensuring dimensional accuracy and smooth edges.
Robotic welding ensures consistent weld quality, uniform strength, and minimal deviation, outperforming traditional manual welding.
CNC drilling and punching lines deliver accurate bolt holes and connections, enabling quick assembly on site.
Steel surfaces are treated with shot blasting, painting, or hot-dip galvanizing for anti-rust performance and long durability.
All processes follow ISO, EN1090, and AWS standards with strict QC inspections for welding, cutting, and coating.
Automated lines and skilled workers guarantee stable output, with a daily capacity of over 500 tons of prefabricated steel.
"Working with UJ Steel was the best decision for our factory expansion. The steel workshop was delivered on time, and the quality exceeded our expectations. The structure is strong, durable, and perfectly suited to our production needs."
Their team provided customized design and installation service. From initial planning to final delivery, everything was smooth and professional. We saved both time and cost compared to traditional construction."
"The steel warehouse built by UJ Steel helped us improve storage efficiency and safety. The insulation and lighting design are excellent, making it highly energy-efficient."
Ujsteel – Reliable steel structure solutions with advanced technology and strict quality control.
Address: Linqing, Liaocheng, Shandong, China
Tell us your project requirements and our team will provide you with a customized solution and quotation within 24 hours.