YOUR STEEL STRUCTURE ENGINEERING EXPERT
We are an international company specializing in steel structure construction and export, with over 17 years of experience in steel structure engineering. We have provided high-quality steel structure building solutions to more than 60 countries worldwide. Our company holds international quality system certifications and possesses integrated service capabilities encompassing design, manufacturing, construction, and export.
Portal Steel Structure & Prefab Factory Workshop
The steel portal frame industrial buildings feature a rigid frame structure design. The main structure utilizes high-quality steel materials, including both Q355B and ASTM A572 grades. These materials offer high strength and excellent toughness, effectively supporting various loads encountered during daily operations and providing a solid and reliable structural foundation for industrial production. The bolted connection system ensures convenient and efficient assembly with secure and stable joints. The structures feature clear spans of 10–50 meters and eave heights of 4–15 meters. Provision is made for crane installation (5–50 tons). The structures undergo hot-dip galvanizing treatment and have a service life exceeding 50 years.
Modern Manufacturing Workshop Steel Structure Factory Construction
Core Features & Advantages
Portal-frame steel structure workshops fundamentally represent a perfect alignment between structural characteristics and industrial requirements. By effectively addressing the pain points associated with traditional industrial buildings—such as spatial constraints and cumbersome maintenance—while simultaneously ensuring flexible adaptability and low-cost construction, they have emerged as the optimal choice for modern industrial facility development.
♦ High-strength steel, crane ready;
♦ 50m+ clear span;
♦ 50% faster build;
♦ Zero maintenance;
♦ Expandable.
Applications
Featuring large spans, column-free designs, and flexible spatial layouts, portal-frame steel structures are widely utilized in various industries requiring open spaces. Applicable scenarios include manufacturing plants, logistics and warehousing facilities, cold storage and climate-controlled warehouses, commercial office spaces, and agricultural greenhouses. Their advantages—including rapid construction, low cost, exceptional durability, and excellent scalability—enable them to effectively meet the demands of modern production, storage, and operational activities.
♦ Workshops;
♦ Warehouses;
♦ Cold storage;
♦ Agriculture;
♦ Sports halls.
Product Parameter
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
