Wide Span Multi-Span Greenhouse

1.Product Overview

Wide Span Multi-Span Film Greenhouse is an upgraded large gutter-connected greenhouse designed for modern large-scale intensive agriculture.It adopts extra-wide single span layout(8–12m standard),connecting multiple arch units via shared galvanized drainage gutters to form an ultra-spacious,barrier-free integrated planting spacefilmgreenh....

The whole framework uses reinforced hot-dip galvanized steel truss,matched with high-transmission anti-fog PO/PE agricultural film.Compared with conventional narrow-span multi-span greenhouses,its wide clear span greatly maximizes internal operation space,fully compatible with large farming machinery,vertical hydroponic racks and automated production lines.Equipped with full sets of intelligent environmental control equipment,it delivers stable microclimate and higher land utilization rate,becoming the preferred facility for commercial vegetable factories,flower industrial parks and seedling breeding bases worldwide.

2.Reinforced Wide-Span Structural System

2.1 Heavy-Duty Galvanized Steel Frame

Main material:Thickened hot-dip galvanized round steel truss pipe,full passivation anti-rust treatment,service life≥15 years,resistant to coastal salt fog,acid rain and humid farm environment.

Standard wide span specifications:Single span 8m/9.6m/10m/12m customizable;ridge height 3.5–6.5m;column spacing 4m–5m;pipe wall thickness 1.8–3.0mm(thicker than ordinary multi-span greenhouses for heavy load bearing)Miilkiia.

Load performance:Reinforced truss structure evenly disperses wind and snow pressure,standard design withstands wind load up to 150km/h and snow load 0.4–0.6kN/㎡,stable for plain,mountain and coastal high-wind regions.

Integrated rain gutter:Large-capacity galvanized drainage gutters between wide spans,centralized rainwater collection and rapid discharge,effectively avoid roof leakage and ground waterlogging.

2.2 Premium Functional Covering Film

PO Polyolefin Film(Top Choice)

90%+light transmittance,lasting anti-fog&anti-dripping,strong UV anti-aging,service life 3–5 years;uniform scattered light prevents crop sunburn and reduces fungal diseases.

PE Polyethylene Film(Cost-Effective)

82%–88%light transmission,economical,service life 2–3 years for low-budget projects.

Double-Layer Inflatable Film(Cold Area Optional)

Adds air insulation layer,cuts winter heating energy consumption by over 30%,suitable for high-latitude cold zones.

3.Complete Optional Automatic Supporting Systems

All systems can be independently configured or integrated into one PLC intelligent control cabinet with environmental sensors:

Cooling System:Exhaust fan+water cooling pad unit,fast temperature drop in hot summer

Ventilation System:Electric top roll-up large vent+side film rolling vent,efficient overall air circulation

Shading&Insulation System:External sunshade net for heat insulation;internal thermal screen for heat preservation

Water&Fertilizer System:Drip irrigation,sprinkler irrigation,integrated water-fertilizer machine for automatic nutrient supply

Auxiliary equipment:Heating boiler,CO₂generator,mobile seedling bed,intelligent temperature/humidity/light automatic control system

4.Unique Advantages of Wide Span Design

Ultra-large unobstructed interior space

8–12m wide single span eliminates dense intermediate columns,allowing tractors,transplanting machines,picking trolleys and large hydroponic equipment to move freely;easy to arrange multi-layer vertical planting racks to raise unit yield.

Higher land utilization efficiency

Shared gutters and side walls remove redundant gaps between independent tunnels,land usage ratio reaches over 88%,greatly expand effective planting area on the same plot of land.

More uniform internal climate

Wider continuous space reduces temperature and humidity stratification;ventilation,cooling and shading equipment operate evenly across the whole greenhouse,ensuring consistent light,temperature and humidity for synchronized crop growth and stable high yield.

Lower overall operating cost

Fewer supporting columns reduce steel consumption per square meter;centralized environmental control equipment cuts power and labor costs;film replacement is simple with low maintenance expense.

Strong modular scalable customization

Span width,ridge height,total length and supporting equipment can be fully customized according to local climate,crop varieties and investment budget,suitable for small breeding nurseries,large agricultural industrial parks and agricultural scientific research labs.