YOUR STEEL STRUCTURE ENGINEERING EXPERT
We are a steel structure fabricator and EPC contractor based in Jining, Shandong, China, with 17 years of experience since 2009 and delivered projects in 60+ countries. Shandong Shijie Heavy Industry Co., Ltd. and its sister company, Henan Hengfeng Steel Structure Engineering Co., Ltd., operate as one manufacturing group under the same ultimate ownership. SynJect is the group’s export brand.
Portal Steel Structure & ASTM AISC PEB Warehouse
Prefabricated metal building engineered to AISC/ASTM standards. Main frames: tapered H-section (ASTM A992/Grade 65). Secondary: G550 cold-formed C/Z purlins. Span 20–100m, eave height 6–20m. Hot-dip galvanized. 50+ year lifespan. These steel portal frame warehouses are constructed using lightweight portal frame structures and are designed and manufactured in accordance with international and domestic standards such as AISC and GB. This design not only provides the structure with exceptional load-bearing capacity but also allows it to easily accommodate long-term loading from heavy-duty racking, large equipment, and high-density cargo.
High-Standard Prefabricated Steel Portal Frame Warehouse
Core Features & Advantages
The steel portal frame warehouse structures feature a prefabricated modular design, enabling quick installation and a short construction timeline. The large-span, column-free structure creates a spacious interior. The structures offer stable performance and comply with international building standards. They represent a highly efficient, cost-effective, and practical solution for modern warehousing.
♦ 40% lighter, 50% faster build;
♦ Column-free, max space;
♦ Zero maintenance, 50+ years;
♦ AISC compliant, seismic/wind resistant;
♦ Expandable & relocatable.
Applications
Gantry-style steel warehouses have a wide range of applications, including industrial plants, logistics warehouses, e-commerce fulfillment centers, and agricultural storage facilities. They can be constructed as either temporary or permanent structures to meet specific needs, and are highly adaptable to various terrains and industries, making them extremely practical.
♦ Industrial storage;
♦ Agricultural storage;
♦ Harsh environments;
♦ Temporary facilities.
Technical Parameters
| Products |
Beams,Columns,H Profile,Lattice Column,Box Beam,Tube,Cross-shaped column |
| Main Material | Q235B(ASTM A36,S235JR), Q355B |
| Surface treatment | Painting, Galvanized |
| Process | cutting,holing,assembly, welding, painting/HDG,packing |
| Quality Control | QC inspection, third party inspection |
| Color | As requested |
Vision & Mission
We are committed to providing safe, efficient, and environmentally friendly solutions for global customers through continuous technological innovation and exceptional product quality, driving industry progress and collectively creating a better future.
CONTACT
MORE PRODUCTS
SHANDONG SHIJIE HEAVY INDUSTRY CO., LTD
Headquartered in the High-Tech Development Zone of Jining, Shandong Province, Shandong Shijie Heavy Industry Co., Ltd. and its sister company, Henan Hengfeng Steel Structure Engineering Co., Ltd., operate as a unified manufacturing group under the same ultimate ownership. Globally, we deliver our end-to-end solutions through our dedicated export brand, SynJect.
Drawing on 17 years of export expertise and a proven track record across more than 60 countries, we provide integrated EPC contracting and heavy fabrication. This global reach is backed by our robust manufacturing footprint: an 80,000 m² facility with an annual capacity exceeding 500,000 tons, RMB 120 million in registered capital, and a skilled workforce of over 600 professionals.
Our core expertise spans civil construction, petrochemical facilities, long-distance pressure pipelines, heavy steel structures, pressure vessels, and skid-mounted refueling stations.
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INDUSTRIAL STEEL BUILDINGS
