Metal swine barn supports stable pig farming in many regions. Farmers want clean spaces, strong frames, and fast construction. Metal barns meet these needs with good strength and easy control systems. A simple barn for 500 pigs often uses around 380–450 m² of land. Most barns include pens, feeding lanes, ventilation lines, and waste channels.
Many farms choose steel frames because they handle wind loads of 0.5–0.7 kN/m². Metal swine barn also helps farmers keep stable temperature levels. Many units use adjustable fans that reach 12,000–18,000 m³/h. These barns protect pigs and improve production speed.
Structure
Metal swine barn uses simple frames that support long service life. Most barns use single-span frames from 8–15 m wide. Farmers choose clear-span frames because they allow free interior layout. A typical frame includes columns, roof beams, purlins, and bracings. The frame height stays around 3–4.5 m. The roof slope often stays near 10–15 degrees. These numbers help water flow run well during rain.
The structure supports pens, walkways, fans, and water lines. Each pig usually needs 0.8–1.2 m² of floor space. The layout keeps pigs safe and reduces stress. Strong steel frames hold equipment loads of around 20–30 kg/m². The floor system normally supports feeders that weigh 15–25 kg each.
Metal barns handle high humidity because the frame stays rigid under moisture. Good bracing limits shaking when fans run at high speed. The structure also holds ceiling insulation panels. These panels help farmers keep the indoor temperature near 18–26°C, which supports good growth. The steel structure system gives farmers a reliable base for modern tools. The simple frame shape also helps workers clean and repair the barn fast.
Material
Metal swine barn mainly uses Q235 or Q355 steel. These steels have yield strengths of 235–355 MPa. This strength supports safe and steady production. Zinc-coated steel parts reduce rust. Many surfaces use 80–120 g/m² zinc layers. This layer helps the frame resist long moisture cycles.
Insulated wall panels make the interior stable. Most farms choose EPS, PU, or PIR panels. Panel thickness stays between 50–75 mm. A PU panel with 0.3 W/m·K conductivity saves energy and lowers fan use. Many barns also use aluminum windows because they resist water. Some windows use double glass with 10–12 mm air layers.
Roof systems often use color steel sheets. These sheets weigh 4–6 kg/m². The light weight helps workers install them fast. Farmers use galvanized mesh for pens, which holds around 300–350 kg per set. Water pipes use PVC or stainless steel. Feed lines use steel spirals that move 400–600 kg/h of material.
Flooring uses slatted floors made from steel or composite material. Each plank supports around 150–200 kg. The material choice supports smooth cleaning and better waste flow. Good materials reduce repair work and improve long-term efficiency.
Advantages
Metal swine barn offers strong durability. A steel barn often lasts 25–35 years with normal care. Steel parts resist pests, fire, and many chemicals. This strength improves safety for pigs and workers. The light weight of steel also reduces foundation cost. A small farm often saves 10–18% in base cost when using metal.
Metal barns allow fast construction. Workers often complete a 400 m² barn within 18–25 days. Prefabricated parts reduce mistakes and speed up installation. The barn shape also adapts to seasonal wind loads. Many barns handle wind speeds of 22–30 m/s.
Metal barns improve hygiene. Smooth surfaces help cleaning teams finish tasks in 20–30 minutes. The barn also supports stable climate systems. Good ventilation lowers ammonia levels to <10 ppm. This level supports stable growth. Pigs also gain weight faster when they stay in clean and stable spaces. Data from many farms shows growth rates improve by 5–8% when barns use metal structures.
Energy efficiency also improves. Insulated panels reduce heat loss by 30–40% compared with old brick barns. Fans and cooling pads reduce summer heat stress. This stable environment supports better feed conversion. Farmers often record a feed ratio near 2.6–2.8. The metal barn supports clean management, high output, and long-term stability.
Design Points
Good design creates a clean and efficient barn. Farmers first plan the barn width. Many barns use 10–12 m widths to allow two feeding lanes. Pen size follows pig age. Grower pigs need around 0.8–1 m² each. Finisher pigs need 1–1.2 m² each. Designers also set walkway widths at 0.8–1 m.
Ventilation stays critical. Designers set fan capacity at 60–80 m³/h per pig. Air inlets need smooth shapes for stable flow. Many barns use cooling pads that drop air temperature by 4–7°C.
Lighting design supports pig health. A good barn keeps light at 50–80 lux. LED lamps reduce power use by 20–30%. Drainage lines stay under the floor. A slope of 2–3% allows waste flow.
Designers also choose roof insulation from 50–75 mm panels. This insulation keeps temperature stable. The roof ridge needs vent openings of 0.3–0.5% of floor area. This opening helps reduce heat buildup.
The barn layout also supports cleaning machines. Doors usually stay 1.2–1.5 m wide. This width lets machines move freely. The design process focuses on safety, airflow, hygiene, and worker comfort.
Advantages of professional manufacturers
Metal swine barn has higher requirements for the quality and installation of components. Deficiencies and errors in metal components or panels can cause the building to fail to be installed smoothly. Therefore, it becomes very important to choose high-quality products and manufacturers.
Harbin Dong’an Building Sheets Company is leading manufacturer of steel structure products in China. The company has extensive experience in designing steel structures. The team of engineers examines each facility and creates accurate plans. Customers receive safer designs and smoother installation.
The plant has modern equipment such as laser cutting machines, 3D CNC drills and polyurethane foaming machines. These machines reduce errors in the manufacture of products and increase accuracy. Company pays special attention to durability, anti-corrosion properties and long service life. Each beam and panel meets strict quality standards. Customers enjoy stable structures and a reliable construction process. The company offers customized solutions for special layouts and functions.
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