Sainpoly Commercial Sawtooth greenhouse, with built-in ventilation and insulation system, achieves continuous production of crops every year 1

Sainpoly Commercial Sawtooth greenhouse, with built-in ventilation and insulation system, achieves continuous production of crops every year

The Sawtooth greenhouse is an efficient facility specially designed by Sainpoly for commercial planting. By optimizing the ventilation and lighting structure, it significantly increases the yield per unit area while controlling costs. Relying on the original manufacturing capabilities, users can customize greenhouse sizes and functional systems, and deliver them in a fully managed manner, with immediate results upon production.

Model:

Sainpoly-Sawtooth greenhouse

Minimum order quantity:

3000 square meters

Brand:

SAINPOLY

Price terms:

EXW, FOB, CIF

Origin:

Weifang, Shandong

Delivery method:

Air/Sea/Land (upon request)

Payment methods:

Telegraphic transfer (T/T), letter of credit (L/C)

Delivery date:

30-60 days (depending on project size)

Production capacity:

Annual output of over 200 hectares

Packaging:

Unified classification and packaging according to international standards

Inquiry

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Product Description

The Sainpoly Sawtooth greenhouse is positioned as low-cost and easy-to-use, providing flexible solutions for planting scenarios such as vegetables, fruits, seedlings, and hydroponics. The main body adopts a combination of hot-dip galvanized light steel and high durability agricultural film, with a Sawtooth asymmetric design that simplifies the structure while maintaining good wind and snow resistance. The covering material can be single-layer, double-layer, or insect proof mesh. The lifespan of the film is extended by 2 to 4 years compared to ordinary products, and heating or cooling modules can be selected according to climate conditions. Sainpoly covers the entire chain of design, installation, delivery, and after-sales services, helping users achieve stable output with low investment.

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Product Advantages

Sainpoly Commercial Sawtooth greenhouse, with built-in ventilation and insulation system, achieves continuous production of crops every year 11 Anti-corrosion Long-life Frame: The greenhouse skeleton is made of high-strength grade steel (not lower than Q235B) and undergoes hot-dip galvanizing process. The thickness of the galvanized layer far exceeds the ordinary standard, effectively resisting humid and corrosive environments, ensuring that the main structure remains stable and reliable for more than 15 years of service.

Sainpoly Commercial Sawtooth greenhouse, with built-in ventilation and insulation system, achieves continuous production of crops every year 12 The Sawtooth greenhouse offers two coverage options: Single-layer and double-layer films, with a light transmittance of not less than 90%. The double-layer structure can reduce greenhouse nighttime heat loss by about 30%, significantly enhance insulation capacity, and meet the annual production needs of various climate zones.

Sainpoly Commercial Sawtooth greenhouse, with built-in ventilation and insulation system, achieves continuous production of crops every year 13 Intelligent Automatic Control: The Sawtooth greenhouse can integrate functional modules such as electric film rolling, wet curtain fan, external shading net, internal insulation, and IoT control cabinet. Users can achieve real-time monitoring and automation control in different locations with the help of mobile phones or PCs.

Sainpoly Commercial Sawtooth greenhouse, with built-in ventilation and insulation system, achieves continuous production of crops every year 14 Factory direct supply: 90% self-produced rate, CE certification, 15 patents, strict three inspection system, zero defects at the factory.Precision production of high-end equipment.

Sainpoly Commercial Sawtooth greenhouse, with built-in ventilation and insulation system, achieves continuous production of crops every year 15 Customized services: We provide customized services for climate data collection, structural strength verification, foundation design, environmental control selection, irrigation schemes, and supplementary lighting systems at the project site. We also provide installation drawings and engineer installation guidance.

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Technical Specifications

Parameter item	Standard Configuration	Optional Upgrade
Span	8m,9.6m	Support for customization of various lengths
Bay	4m	Support for customization of various lengths
Eave height	3m,4m,6m	Support for customization of various heights
Top Covering	PO film	PE film, PEP film, woven film
Side Covering	PO film	PE film, PEP film, woven film
Frame Galvanizing Layer	≥180g/m2	≥275g/㎡ galvanized followed by spray coating process
Snow Load Resistance	0.26kN/m2	0.2~0.8kN/m2
Wind Load Resistance	0.28kN/m2	0.2~0.8kN/m2
External Shading Screen	Electric black round wire mesh	Customizable with different shading rates
Internal Shading Screen	Electric aluminum foil reflective mesh	Customizable with different shading rates
Insulation Curtain	Oxford cloth+cotton+Oxford cloth	Upgradeable waterproof surface/Upgradeable foldiable thermal insulation quilt/Upgradeable double-layer inflatable film insulation
Heating System	Ordinary boiler heating	Finned tubes,warm air blowers, snow melting pipes/ Electric warm air blowers, fuel warm air blowers
Roof Ventilation Method	Electric film rolling window	Single and double-sided rack-and-pinion top windows
Side Ventilation Method	Electric film rolling window	Fan-pad forced ventilation
Control System	Manual electrical control cabinet	IoT intelligent automatic electrical control cabinet Optional mobile online control

Application and Solutions

Extremely cold in winter，conventional greenhouse vegetable crops will experience irreversible freezing damage.

Low Temperature Insulation

For severe cold environments below -25 ℃, the Sawtooth greenhouse significantly reduces the heat transfer coefficient of the enclosure structure by stacking double-layer inflatable films with air layers, and the insulation rate increases by no less than 30%. Combined with internal insulation curtains and heating access conditions, a complete thermal protection system is formed to ensure that vegetable plants are protected from freezing damage and achieve safe winter production.

Heavy Snow Resistance

Regarding the risk of snow collapse, the Sawtooth greenhouse forms multiple anti snow bearing mechanisms by increasing the main skeleton section, strengthening node connections, and setting high slope serrated roofs. The snow load bearing capacity covers a range of 0.2 to 0.8 kN/m ², which can easily cope with heavy snowfall weather, ensuring that the shed does not collapse or deform, and providing reliable structural protection for winter agricultural production.

High Light Transmittance

Short illumination time, slow vegetable growth, covered with high transmittance anti drip film (transmittance ≥ 90%), reduces light refraction loss caused by water vapor adhesion through anti fog droplet coating on the film surface, and improves the reach rate of light radiation. Optional LED intelligent supplementary lighting system: The supplementary lighting duration is more than 14 hours, and the light intensity is adaptively adjusted according to the crop light saturation point to avoid excessive or insufficient light supply.

Efficient Energy Saving

High energy cost. The outer layer uses a double-layer inflatable membrane, and the air pump continues to work to maintain the pressure between the membranes and lock in indoor heat; Internally, zone control is implemented, with independent heating in different areas to avoid energy waste. Compared to traditional single-layer film greenhouses, the energy-saving effect is significant.

Anti-corrosion Long Service Life

The main structure of traditional greenhouses with short lifespan is a fully hot-dip galvanized steel frame. The measured zinc layer is ≥ 65 µ m, and the corrosion resistance is significantly improved. The main body is guaranteed for 10 years, and the overall service life is over 15 years; The film adopts imported anti-aging and anti dripping film, with a service life of 3-5 years. It is easy to disassemble and install, and its later maintenance cost is far lower than that of similar products.

Custom Commercial

Greenhouse Services

As the source production factory, we provide flexible fully customized services:

System selection

Depending on your needs, you can choose from CO2 disinfection system, hanging system, irrigation system, photovoltaic system, heating system, cooling system, fertilization system, hydroponic system, fish and vegetable symbiosis system, ventilation system, shading system.

Size customization

The eave height, opening, length, and span can be adjusted as needed, and special customization can be made according to planting needs and geographical features.

Film type

Ordinary drip proof film (traditional type 1-3 years), double-layer inflatable film system (to enhance thermal insulation), diffuse film (to let the light evenly spread on the vegetation), PO coating film (dust-proof, high light transmittance more than 90%), high light transmittance anti-aging drip proof film (service life is more than twice the traditional film) can be selected. The light transmittance is ≥ 90%, and the service life is extended by 3 to 5 years.

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SAINPOLY Full-Service Support

Customized design

Our design team will provide CAD construction drawings and load calculation reports based on your local climate, crop type, and budget. Span, eave height, covering material, insulation scheme, and environmental control system can all be customized according to your needs, fully matching your project requirements.

Precision manufacturing

As the source factory, our self production rate reaches 90%. Robot welding, laser cutting, and automatic stamping ensure machining accuracy. Each batch of products strictly follows the three inspection system and has passed multiple verifications such as CE certification and ISO.

On site technical guidance

Engineers go to the site to guide the local team, providing manuals, video tutorials, and daily quality checks.

Turnkey installation

A professional team is fully responsible for the foundation construction, final debugging, and delivery of a ready to use greenhouse.

After sales service

Remote troubleshooting and equipment debugging can be resolved remotely through video calls and data analysis. We will gradually guide your local personnel in the operation.

Regular maintenance training

Provide free online training every year to help your team master the latest maintenance techniques and new technologies.

FAQ

Q: What is the difference between a Sawtooth greenhouse and a traditional arched greenhouse?

A: The most distinctive feature of the Sawtooth greenhouse is its asymmetric sawtooth-shaped roof, with vertical or inclined vents installed at the high points. These vents utilize natural wind force to create negative pressure, extracting hot air from inside the greenhouse. As a result, its ventilation and cooling effect is significantly better than that of traditional arch-shaped greenhouses. In addition, the sawtooth structure maintains good structural stability even under large-span conditions, making it particularly suitable for hot regions or summer cultivation.

Q: What is the service life of the film? Is it convenient to replace?

A: The greenhouse film is imported anti-aging and anti dropping film, with a service life of 3-5 years. The film adopts a card slot fixed design, which makes the replacement operation simple and convenient, and the subsequent maintenance cost is relatively low. The main steel frame structure has undergone full hot-dip galvanizing treatment, with a galvanized layer thickness of ≥ 65 µ m and a service life of over 15 years. The main structure is guaranteed for 10 years.

Q: What intelligent environmental control devices can be matched?

A: The Sawtooth greenhouse supports multiple intelligent environmental control systems, including:
Electric film rolling system (automatic control of ventilation opening and closing)
Wet curtain fan cooling system
External shading net and internal insulation system
IoT intelligent control cabinet (supporting remote control via mobile phone/PC) Flexible selection can be made according to planting needs.

Q: Do you provide installation services? Is remote guidance feasible?

A: We provide two modes: ① Send technicians from the headquarters for on-site guidance; ② Provide detailed installation videos and manuals, with full remote assistance, and installation can be completed smoothly even for beginners.

Q: Can Sawtooth greenhouses be customized in size? What crops are suitable for?

A: Support full-size and full system customization, flexible design according to customer land parcels and planting needs. Widely applicable to various scenarios such as vegetable cultivation (tomatoes, colored peppers, cucumbers, etc.), fruit cultivation, seedling cultivation, hydroponics, etc.

Q: Are your Sawtooth greenhouse materials compliant with EU standards?

A: Yes. We have CE certification, and steel, polycarbonate sheets, sealants, etc. all comply with relevant EU standards, and can assist customers to pass local acceptance.

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