355 Agricultural Tunnel Greenhouse - Galv Steel Plastic Film 1

355 Agricultural Tunnel Greenhouse - Galv Steel Plastic Film 2

355 Agricultural Tunnel Greenhouse - Galv Steel Plastic Film 3

355 Agricultural Tunnel Greenhouse - Galv Steel Plastic Film 4

355 Agricultural Tunnel Greenhouse - Galv Steel Plastic Film 5

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355 Agricultural Tunnel Greenhouse - Galv Steel Plastic Film 7

355 Agricultural Tunnel Greenhouse - Galv Steel Plastic Film

The 355 Agricultural Tunnel Greenhouse is a simple, efficient hoop house built with galvanized steel arches and a UV-stabilized plastic film cover. Its strong, rust-resistant frame and flexible plastic skin give good light transmission, weather protection, and a long service life while remaining affordable and easy to assemble. This tunnel greenhouse is ideal for extending growing seasons, protecting crops from wind and rain, and improving yields in small to medium farms or hobby gardens.

Usage scenarios:

- Season extension and frost protection for vegetables, herbs, and small fruit beds.

- Seedling propagation and nursery use to raise young plants in a controlled environment.

- Protected cultivation of flowers, potted plants, and off-season specialty crops on small commercial plots.

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Certificate

CE Certificate

Optional system

Planting System

Packing

Safe Packing

Covering

150/200micro PE Film

Color

Transparent

Structure

275g/m2 Hot Galvanized Steel Pipe

Features

Stable Structure Easily Assembled

Application

Vegetable Fruits Flowers

Warranty

5-10 Years

Instruction for use

With installation manual and installation video.

Durable Galvanized Easy Assembly

The Berry Greenhouse is a multi-span agricultural tunnel that shields vegetables, fruits and berries with high-transparency plastic film and a sturdy hot-dip galvanized steel tube frame for durable, corrosion-resistant crop protection. Available in customizable large sizes and flat-packed with secure packaging, the 180/200-micron film and robust shape deliver stable ventilation, easy installation and a uniform microclimate for higher yields. Manufactured by Sainpoly with sample service and a 5000 square meter MOQ, this rain-shelter polytunnel greenhouse offers reliable, commercial-grade performance for agricultural use.

Sturdy Galvanized Film Greenhouse

The 355 Agricultural Tunnel Greenhouse is a large, multi-span Berry Greenhouse built with hot-dip galvanized steel tubes and a 180/200‑micron plastic film cover, offered in customizable sizes as rain-shelter polytunnels for vegetables, fruits and flowers. Its corrosion-resistant frame and high-transmission film provide durable, low‑maintenance protection that extends the growing season, shields crops from rain and pests, and creates a controllable microclimate to improve yields and quality. The arched tunnel structure and modular multi-span layout deliver strong wind-load capacity, easy assembly and scalable coverage, with sample service and MOQ 5000 m² to support commercial agricultural projects.

Galvanized Agricultural Tunnel Greenhouse

The Berry Greenhouse is a large, multi-span agricultural polytunnel rain shelter manufactured by Sainpoly for vegetable, fruit and flower cultivation. It features a hot dip galvanized steel tube frame and a plastic film cover with 180/200 micro thickness, and sizes can be customized to meet specific farm requirements. Sample service is available and the minimum order quantity is 5000 square meters for this agricultural greenhouse.

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Durable Efficient Crop Protection

The 355 Agricultural Tunnel Greenhouse with galvanized steel frame and plastic film blends sturdy engineering and a trusted brand legacy to produce a purpose-built shelter ideal for small fruit cultivation like Berry Greenhouse. Its arched 355mm profile, corrosion-resistant galvanization, UV-stabilized plastic film, and reinforced joints provide high light transmission, thermal retention, adjustable ventilation, and reliable pest and weather protection for season extension and higher yields. Easy to assemble and low-maintenance, this cost-effective tunnel offers long service life, consistent crop quality, and scalable performance for commercial and hobby growers.

Material introduction

The Berry Greenhouse is built with a robust frame of hot-dip galvanized steel tubes, providing excellent corrosion resistance and long-term structural stability for multi-span agricultural installations. Its cover uses a high-transmission plastic film (180/200 micro) that balances light diffusion with weather protection for vegetables, fruits, and flowers. Designed for large, customizable tunnel configurations, this Galv Steel Plastic Film system is available with sample service and bulk supply to meet commercial agriculture needs.

◎ Durable Galv Frame

◎ Protective Plastic Film

◎ Balanced Tunnel System

FAQ

What is a 355 Agricultural Tunnel Greenhouse with galvanized steel frame and plastic film covering?

It’s a low‑cost, semicircular tunnel greenhouse built from hot‑dip galvanized steel arches and covered with agricultural plastic film. The galvanized frame resists rust and provides structural strength; the film provides light transmission and helps retain heat and humidity for protected crop production.

What kinds of crops and farming scenarios is this tunnel greenhouse best suited for?

It’s ideal for vegetables (tomatoes, cucumbers, peppers, lettuce), seedlings and nurseries, early/late season production, flowers, herbs, and small fruit crops. Typical scenarios include smallholder plots, commercial row cropping, off‑season extension, community gardens, and pilot research plots.

How does it help with climate control and off‑season production?

The plastic film traps solar heat and raises daytime temperatures, extending the growing season and enabling off‑season harvests. Simple climate control methods—ventilation (end doors, roll‑up sides), shading nets, thermal screens, and forced air or low‑cost heating—manage temperature, humidity, and airflow to reduce stress and disease.

What site preparation and installation considerations should I plan for?

Choose a flat, well‑drained site with good sunlight and wind exposure consideration. Prepare a simple foundation such as ground anchors, concrete footings, or screw piles for stability. Orient the tunnel for maximum sun (typically east‑west ridge) and allow space for access, ventilation, and irrigation lines. Follow manufacturer guidelines for arch spacing, bracing, and anchoring to withstand local wind and snow loads.

What maintenance is required and how long do the components last?

Regular tasks include checking and tightening fasteners, clearing snow and heavy debris from the cover, inspecting for rust or coat damage on the galvanizing, and replacing torn or degraded film. Galvanized steel frames often last many years (10+ with good care); plastic films typically need replacement every 2–6 years depending on film quality, climate, and UV exposure.

Can the tunnel greenhouse be customized or upgraded for larger operations?

Yes. Common upgrades include double‑layer inflation (air film) for better insulation, anti‑drip/anti‑UV films, roll‑up sidewalls or motorized vents, drip irrigation and fertigation systems, shading, supplemental lighting, and reinforced frames for higher wind/snow areas. Sizes, arch spacing, and end‑wall designs can be adapted to fit scale and crop requirements.

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