Tiankai Southeast Green Building Technology (Henan) Co., Ltd. is advancing steel-structure manufacturing in central China through automated production, digital process controls and a large-scale fabrication base. The venture, formed by Henan Tiankai Group and Zhejiang Southeast Space Frame Co., is positioning prefabricated steel systems as a core component of greener construction, with a designed annual capacity of 60,000 metric tons.
Tiankai Southeast was jointly initiated by Henan Tiankai Group and Zhejiang Southeast Space Frame Co. (stock code 002135), which signed a strategic cooperation agreement in August 2020. The company relies on Southeast Space Frame’s patented technology, academic workstation and research results to build a high-standard prefabricated construction production base.
The production line is organized to move from raw steel to finished components under controlled conditions, with automation applied at each stage. The company lists precision cutting, robotic welding, digital coating and intelligent installation as its core manufacturing processes.
- Precision cutting: CNC systems hold cutting tolerance to ±0.5 mm, reducing material waste and meeting complex component requirements.
- Intelligent welding: Welding robots with smart sensor technology operate three to five times faster than manual welding, with stable weld quality for demanding environments.
- Digital coating: Closed-loop automated spraying equipment precisely controls coating thickness and uniformity, improving anti-corrosion performance and extending service life by five to 10 years.
- Intelligent installation: On-site crawler cranes with lifting capacity up to 1,000 metric tons, paired with intelligent control systems, support precise installation of large components.
| Specification | Details |
|---|---|
| Project investment | Total investment of 1 billion yuan; first phase planned at 450 million yuan |
| Site area | First phase covers 108 mu (about 7.2 hectares); factory building covers 50,000 square meters |
| Production capacity | 6,000 metric tons per month; designed annual capacity of 60,000 metric tons |
| Core equipment | Eight specialized production lines; 58 cranes of various tonnages, with a maximum of 50 tons |
Steel structures offer environmental advantages over their full life cycle. Prefabrication sharply reduces on-site construction waste, and steel recovery rates exceed 90%, aligning with green development principles. By optimizing design and manufacturing, Tiankai Southeast enables flexible large-span column-free layouts that can be adapted to later needs, extending a building’s practical value and service life.
The company’s product range includes box columns, cross-shaped columns, circular tube columns, welded H-beams, box trusses, custom oversized steel structures and steel truss floor decking. Through a complete chain of cutting, forming, assembly, welding, rust removal, coating and inspection, the company handles complex joints and new structural forms.
Tiankai Southeast provides integrated solutions for multi-story and super-high-rise steel structures, large-span space pipe trusses and industrial plant steel structures. Its fabrication base is designed for batch production of large and complex steel components, supported by eight specialized lines and dozens of lifting devices.
