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.
Factory-Assembled Pig Barns for Rapid Construction
These quick-assembly steel-frame pig barns feature a sturdy, distortion-resistant main steel frame with excellent corrosion resistance and weatherproofing, enabling them to withstand the high-humidity, highly corrosive conditions typical of pig farms over the long term. The open, column-free interior design maximizes land utilization and operational convenience, facilitating mechanized operations and standardized pen layout. Dimensions and layouts can be customized to suit site size and farm scale, with integrated insulation, ventilation, and disease prevention features designed to help farmers reduce construction time, lower costs, and increase profitability.

Corrosion-resistant Livestock Breeding Prefabricated Pigsty
Core Features & Advantages
Factory-assembled rapid-construction pig barns are produced through fully standardized prefabrication, with steel beams, columns, and enclosure structures all precision-manufactured on-site. The steel structure is robust, durable, and highly load-bearing, featuring a column-free interior with large spans that facilitates the arrangement of animal pens and allows for the smooth operation of mechanized feeding and manure removal equipment. The structure is fully moisture-proof and corrosion-resistant with excellent sealing properties. Its scientifically designed ventilation and insulation systems effectively control indoor temperature and humidity, reduce bacterial growth, and deliver outstanding disease prevention results.
♦ Fully prefabricated in the factory and assembled on-site using dry construction methods, ensuring rapid construction
♦ Light-gauge steel high-strength structure providing spacious, open, and well-organized large-span spaces
♦ Corrosion-resistant, moisture-proof, and acid/alkali-resistant, making it suitable for the high-humidity environment of pig farms
♦ Integrated insulation and ventilation design, facilitating disease prevention and temperature control
♦ Standardized, interchangeable components allow for expansion and relocation, resulting in low operational and maintenance costs
Applications
Suitable for large-scale pig farms, standardized pig breeding bases, piglet rearing centers, ecological livestock industrial parks, rural centralized breeding communities, and also applicable to the renovation and expansion of old pig farms, as well as the rapid construction of temporary breeding sheds for other projects.
♦ Prefabricated pig barns for large-scale finishing farms
♦ Specialized pig barns for sow breeding and piglet rearing
♦ Livestock facilities for modern agricultural industrial parks
♦ Rapid construction projects for new, expanded, or renovated pig farms
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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