Sainpoly's Semi-closed greenhouse for agricultural product cultivation
The commercial semi enclosed greenhouse professionally built by Sainpoly adopts a world-class environmental control system architecture, which is not afraid of any extreme weather and achieves stable production of vegetables such as tomatoes, peppers, cucumbers, etc. throughout the year. Source factory, supports full-size customization, and provides turnkey services.
5.0
Model:
Sainpoly-Semi-closed
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
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Product Description
Semi-closed greenhouse adopts a Q235 hot-dip galvanized steel structure and aluminum alloy gutters, which is wind-resistant, snow-resistant, corrosion-resistant, and has a service life of more than 20 years. It is equipped with high-transmittance diffuse glass that provides even and soft light, improving photosynthetic efficiency and crop quality. The core is equipped with an FCU intelligent climate system, realizing integrated control of ventilation, heating, cooling, humidification, dehumidification, and CO₂ closed-loop regulation, ensuring stable environment and greatly reducing energy costs. The semi-closed design with reinforced insect nets effectively reduces pests and diseases as well as pesticide usage. It is compatible with integrated water-fertilizer, LED supplemental lighting, mist spray, and intelligent IoT systems, supporting year-round continuous planting. Suitable for complex climates such as high temperature and severe cold, it provides a modern planting solution with high yield, low consumption, safety and stability.
9f88da2e-604a-4131-8fa2-acbd1fbc1952 拷贝 (3)
DJI_20260418110258_0056_D 拷贝 (2)
5682889ef617319085697033694e144 拷贝
55016351c751a30494cf9fa09e331f2 拷贝 (2)
Product Advantages
1
Made of Q235B and above hot-rolled steel, treated with hot-dip galvanizing (galvanized layer ≥ 180g/㎡), with high bearing capacity, strong corrosion resistance, and a designed service life of not less than 15 years.
2
Optional single-layer or double-layer film, with a light transmittance of over 90%. The double-layer structure has a 30% improvement in insulation performance compared to single-layer, making it suitable for large-scale production needs in various climate zones.
3
Electric film roll | wet curtain fan cooling | external shading | internal insulation | Internet of Things control cabinet | mobile phone/PC remote control.
4
90% self production rate | CE certification | 15 patents | Three inspection system (self inspection/mutual inspection/special inspection) | Factory zero defect delivery.
5
We can provide customized services based on climate data, structural strength verification, basic design, environmental control selection, irrigation schemes, and auxiliary lighting systems at the project site. Simultaneously provide installation drawings and on-site installation guidance from engineers.
a806af5653211bc8b061c58530c5d08 拷贝
55016351c751a30494cf9fa09e331f2 拷贝
pc板材 拷贝 (4)
玻璃 拷贝 (2)
4 (14)
3 (18)
DJI_20260418152015_0180_D 拷贝 (2)
Technical Specifications
| Parameter item | Standard Configuration | Optional Upgrade |
| Span | 8m,9.6m,12m | Support for customization of various lengths |
| Bay | 4m,8m | Support for customization of various lengths |
| Eave height | 6m | Support for customization of various heights |
| Top Covering | 4mm、5mm Single layer ordinary tempered glass |
4mm、5mm Single layer diffuse scattering tempered glass |
| Side Covering |
4mm、5mm Single layer tempered glass |
5+6+5mm Hollow tempered glass |
| Frame Galvanizing Layer | ≥275g/m2 | Hot-dip galvanized followed by spray coating process |
| Snow Load Resistance | 0.35KN/m2 | 0.3~0.8KN/m2 |
| Wind Load Resistance | 0.38KN/m2 | 0.3~0.8KN/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 |
| Heating System | Ordinary boiler heating | Finned tubes,warm air blowers, snow melting pipes/ Electric warm air blowers, fuel-fired warm air blowers |
| Cooling method | chiller unit | Independent space chiller unit / Planting pipe air supply system |
| Roof Ventilation Method | Electric single-sided ridge rppf window | Electric roof window can be upgraded to double-side per ridge, single-side per ridge, and all-side per ridge |
| Side Ventilation Method | Electric gear side window | Electric lifting side window |
| 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.
Avoid freezing
Active cooling system
Risk of Snow Collapse
High energy costs
Long life design
Avoid freezing
Extremely cold climate in winter,vegetables freeze to death. FCU closed-loop heating and double insulation curtains keep temperature above 10℃ to avoid freezing and ensure normal growth.
Custom Commercial
Greenhouse Services
As the source production factory, we provide flexible fully customized services:
1
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.
2
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
水培系统 拷贝
加温系统 拷贝
光伏系统 拷贝
灌溉系统 拷贝
吊挂系统 拷贝
co2系统 拷贝
降温系统 拷贝
遮阳系统 拷贝
通风系统 拷贝
施肥系统 拷贝
配电柜和水泵组 拷贝 (2)
荷兰智能施肥机 拷贝 (2)
荷兰消毒机 拷贝 (2)
灌溉系统过滤 拷贝 (2)
供暖系统管道 拷贝 (2)
顶级水处理设备 拷贝 (2)
系统管道 拷贝 (2)
雾喷 拷贝 (2)
气候间内部 拷贝 (2)
cc562629d6ec5b60b1e87a3073b90651 拷贝
factory 2 拷贝 (2)
SAINPOLY Full-Service Support
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.
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.
Engineers go to the site to guide the local team, providing manuals, video tutorials, and daily quality checks.
A professional team is fully responsible for the foundation construction, final debugging, and delivery of a ready to use greenhouse.
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.
Provide free online training every year to help your team master the latest maintenance techniques and new technologies.
FAQ
1
Q: What crops are suitable for Semi-enclosed greenhouses? Can they be used for seedling raising?
A: They are ideal for high-value vegetables (such as lettuce, tomatoes, cucumbers), berries (strawberries, blueberries), flowers and seedling cultivation. The stable temperature and humidity and low pest and disease environment can significantly improve seedling survival rates and crop quality, enabling year-round continuous planting.
2
Q: What are the snow and wind load resistances of the greenhouse? Is it safe under extreme weather conditions?
A: The snow load resistance is 0.35KN/m² (customizable from 0.3~0.8KN/m²), and the wind load resistance is 0.38KN/m² (customizable from 0.3~0.8KN/m²). The structure is professionally calculated to withstand extreme wind and snow conditions in most regions.
3
Q: Do you offer installation services? Is remote guidance available?
A: We offer two service modes: ① On-side guidance by technicians dispatched from our headquarters ② Detailed installation videos,manuals,and remote technical assistance.
4
Q: Can the Semi-enclosed greenhouse be customized according to the climate of different regions?
A: Yes. We will adjust the frame strength, thermal insulation configuration, ventilation system and temperature control scheme according to local extreme temperatures, wind and snow loads, and light conditions. For example, thermal insulation and heating configurations will be enhanced in northern regions, while cooling and ventilation capabilities will be strengthened in southern regions.
5
Q: What systems can be matched?
A: It can work with irrigation, LED light, CO₂, mist spray and IoT for fully automatic planting.
6
Q: Do your Semi-closed greenhouses for vegetable cultivation comply with EU standards?
A: Yes. Our Semi-closed greenhouses are CE-certified, and all materials including steel, glass and sealant fully comply with relevant EU standards. We can assist customers in passing local acceptance inspections.
{{item.score}} Stars
{{item.pre}}%
{{item.nickname ? (item.nickname.slice(0, 2) + '*****') : item.source === 1 ? 'mall buyer' : '--'}}
{{item.comment_time}}
Review in the {{item.country}}
{{itemAttr.params_key}}: {{itemAttr.params_value}}
Contact usLet’s Build Your Commercial Greenhouse Together
Share your project details – we’ll provide a tailored solution and a clear roadmap to success.
Related Products
Global Commercial Greenhouse Solution Provider
As a commercial greenhouse manufacturer, we focus on providing efficient, durable, and cost-effective greenhouse solutions for professional growers and agricultural enterprises worldwide.
Greenhouse
Solution
Service
Address:
East Section of Paris Road, Qingzhou Economic Development Zone, Weifang City, Shandong Province
Li Jianyong
+86 15006367526
Copyright © 2026 Weifang Sainpoly Agriculture Technology Co., Ltd.Sitemap