Leading Global Turnkey Greenhouse Manufacturer
Leading Global Turnkey Greenhouse Manufacturer
Turnkey Greenhouse Manufacturer | Sainpoly
Why Choose Sainpoly
Sainpoly delivers high-performance greenhouse solutions designed to thrive in any climate and for any crop—from tomatoes and lettuce to medical marijuana. Combining 25 years of manufacturing expertise with an end-to-end turnkey service, we seamlessly manage everything from custom engineering and factory-direct production to on-site installation, ensuring your facility is built for maximum productivity and long-term success
◎ 25+ Years Legacy
◎ 80+ Countries Served
◎ 9,850+ Projects Done
◎ Extreme Climate Expertise
◎ 80+ Countries Served
◎ 9,850+ Projects Done
◎ Extreme Climate Expertise
◎ 60+ Expert Staff
◎ Multilingual 24/7 Service
◎15+ Proprietary Patents
◎ Full-Cycle Ag-Consulting
◎ Multilingual 24/7 Service
◎15+ Proprietary Patents
◎ Full-Cycle Ag-Consulting
◎90% In-House Production
◎Robotic Precision Welding
◎CE & ISO Compliance
◎Strategic Global Supply
◎Robotic Precision Welding
◎CE & ISO Compliance
◎Strategic Global Supply
◎ End-to-End Solutions
◎ Modular Fast-Installation
◎ Global Onsite Dispatch
◎ Lifetime Technical Support
◎ Modular Fast-Installation
◎ Global Onsite Dispatch
◎ Lifetime Technical Support
Success projectsSuccess Stories from 80+ Countries
As a leading commercial greenhouse manufacturer, we have been deeply involved in the greenhouse industry for 25 years, with projects covering 80+countries across six continents including Europe, America, the Middle East, Central Asia, Southeast Asia, and Africa.
Partners
We pride ourselves on the trust and satisfaction of our clients.
The client of this project is not an individual grower, but a national-level protected agriculture demonstration project led by the Ministry of Food, Agriculture and Light Industry of Mongolia. Mongolia is an inland country featuring long, frigid winters; extreme low temperatures near Ulaanbaatar can drop to -40°C.
The Romanian client operates in the Argeș region, roughly 120 km north of Bucharest. It is a local agricultural enterprise specializing in large-scale tomato cultivation. The client supplies tomatoes to chain supermarkets and fresh produce delivery platforms serving Bucharest and neighboring towns, and has built reliable distribution channels within the domestic tomato supply chain.
The US client operates in California's Central Valley. It is a medium-scale agricultural enterprise focused on year-round production of organic leafy greens, including lettuce, kale, arugula and spinach. The client supplies fresh leafy greens to premium organic supermarkets and farmers' markets across the San Francisco Bay Area. Having served this niche market for more than a decade, it has built stable B2B client networks and solid brand credibility.
The Philippine client is located in the southern part of Luzon Island and is a medium-sized comprehensive agricultural enterprise. Previously, it mainly engaged in the cultivation of tilapia and milkfish in open-air fish ponds, with small areas of open-air vegetable fields planted with leafy vegetables to supply the local wholesale market.
Sainpoly Greenhouse Product Series
Sainpoly delivers comprehensive, turnkey greenhouse solutions backed by 25 years of manufacturing expertise and 90% in-house production. From custom design and precision manufacturing to professional installation, we provide seamless, end-to-end service that ensures factory-direct quality and optimal performance.
✅90% light transmittance, uniform crop illumination
✅Dutch design, 30+ yrs service life, grade 10-12 wind resistance
✅Precise control: temp, humidity, CO₂, ventilation
✅2 cover options: glass or PC sheet for hail/cold areas
✅Full customization: span, bay, height, systems, functions
✅Turnkey service: design, install, 1-yr warranty, lifetime support
✅Dutch design, 30+ yrs service life, grade 10-12 wind resistance
✅Precise control: temp, humidity, CO₂, ventilation
✅2 cover options: glass or PC sheet for hail/cold areas
✅Full customization: span, bay, height, systems, functions
✅Turnkey service: design, install, 1-yr warranty, lifetime support
✅ Stable internal climate: temp, humidity, CO₂, airflow
✅ Lower energy use vs. fully-enclosed plant factories
✅ Sealed & filtered, blocks pests and pathogens
✅ Even airflow, consistent growth, high marketable rate
✅ Custom span 6-16m, eave 3.5-7m, any length
✅ Full turnkey: design, install, 1-yr warranty, 24/7 support
✅ Lower energy use vs. fully-enclosed plant factories
✅ Sealed & filtered, blocks pests and pathogens
✅ Even airflow, consistent growth, high marketable rate
✅ Custom span 6-16m, eave 3.5-7m, any length
✅ Full turnkey: design, install, 1-yr warranty, 24/7 support
✅ Land use +90% vs. single-span, intensive production
✅ Precise control: temp, humidity, light, CO₂
✅ HDG steel frame, 20+ yrs life, strong wind/snow resistance
✅ Cost-effective PO film cover, 3-5 yrs service life
✅ Custom span 6-16m, eave 2.5-6m, any length
✅ Full turnkey: design, install, 1-yr warranty, lifetime support
✅ Precise control: temp, humidity, light, CO₂
✅ HDG steel frame, 20+ yrs life, strong wind/snow resistance
✅ Cost-effective PO film cover, 3-5 yrs service life
✅ Custom span 6-16m, eave 2.5-6m, any length
✅ Full turnkey: design, install, 1-yr warranty, lifetime support
✅ Pointed arch roof: self-clears snow, handles heavy rain
✅ Uniform stress distribution, excellent wind resistance
✅ Spacious interior: high eave & ridge for mechanization
✅ HDG steel frame, 15-20 yrs life, low maintenance
✅ Custom span 6-16m, eave 2.5-5m, any length
✅ Turnkey service: install, 1-yr warranty, lifetime support
✅ Uniform stress distribution, excellent wind resistance
✅ Spacious interior: high eave & ridge for mechanization
✅ HDG steel frame, 15-20 yrs life, low maintenance
✅ Custom span 6-16m, eave 2.5-5m, any length
✅ Turnkey service: install, 1-yr warranty, lifetime support
✅Saves 90% water & 50% fertilizer vs. soil cultivation
✅ Yield 2-5x higher, cycle 30-50% shorter
✅ No soil-borne pests, minimal pesticides, green produce
✅ Works on deserts, saline land, rooftops, any site
✅ Custom span 6-16m, eave 3-8m, any length
✅ Full turnkey: design, install, training, 1-yr warrant
✅ Yield 2-5x higher, cycle 30-50% shorter
✅ No soil-borne pests, minimal pesticides, green produce
✅ Works on deserts, saline land, rooftops, any site
✅ Custom span 6-16m, eave 3-8m, any length
✅ Full turnkey: design, install, training, 1-yr warrant
Our Classic Venlo Greenhouse Projects Worldwide
As a Venlo greenhouse manufacturer with years of deep expertise in the greenhouse industry, Sainpoly has accumulated rich experience in Venlo greenhouse projects. We have successfully delivered a full range of high-end Venlo greenhouse solutions, including fully glass intelligent greenhouses, polycarbonate (PC) sheet greenhouses, scientific research and experimental greenhouses, plant factories, and ecological sightseeing greenhouses. Backed by professional design, high-quality products, and comprehensive services, Sainpoly has completed numerous benchmark projects, helping customers worldwide achieve high-end precision cultivation.
Sainpoly Venlo Glass Greenhouse ensures customers can achieve stable vegetable production throughout the year under any climate conditions. Relying on the advantage of direct supply from the factory, we support on-demand full-size customization and provide turnkey services throughout the entire process from design to delivery.
The Sainpoly Venlo Glass greenhouse can maintain a stable cultivation environment in extreme climates such as scorching heat, blizzards, or extreme cold, achieving continuous annual vegetable production. As a source manufacturer, we provide personalized customization of any span and undertake one-stop engineering services from planning and design to completion acceptance, ensuring that your planting projects remain safe and efficient even in extreme weather conditions.
Sainpoly Venlo Greenhouse ensures customers achieve stable vegetable production throughout the year under any climate conditions. Relying on the advantage of direct supply from the factory, we support on-demand full-size customization and provide turnkey services throughout the entire process from design to delivery.
Sainpoly Venlo Greenhouse ensures customers achieve stable vegetable production throughout the year under any climate conditions. Relying on the advantage of direct supply from the factory, we support on-demand full-size customization and provide turnkey services throughout the entire process from design to delivery.
Our Classic Multi-Span Greenhouse Projects Worldwide
As a multi span greenhouse manufacturer, we have been deeply engaged in the greenhouse industry for many years and have accumulated extensive project experience. We have successfully delivered a wide range of multi-span greenhouse projects, including large-scale fruit and vegetable production greenhouses, premium flower cultivation greenhouses, scientific research laboratory greenhouses, and agrivoltaic greenhouses. With our professional design, high-quality products, and comprehensive services, we have completed numerous benchmark projects, helping customers achieve efficient and large-scale agricultural production.
Sainpoly creates the most advanced multi-span greenhouse film for global agriculture, offering low costs and high returns, allowing your crops to increase exponentially. Source factories, full-size, and full systems can be customized with a one-stop, turnkey service.
Sainpoly is committed to providing the most advanced film Multi-span greenhouse solutions for global agricultural production. We achieve high economic returns with low-cost investment, helping customers achieve double crop yields. As the source factory, we support personalized customization of full-size and full system, and provide one-stop turnkey services from design to delivery.
Sainpoly creates the most advanced Multi-span film greenhouse for global agricultural planting, achieving low cost and high return, allowing you to double the yield of the crops you want to grow. Source factory supports full-size and full system customization, and provides turnkey arch services.
The Sainpoly Multi-Span Greenhouse is designed for large-scale and efficient agriculture as well as commercial planting markets, and is not afraid of harsh weather conditions. Realize annual high yield and high-quality production of crops.
Our Classic Hydroponic Greenhouse Projects Worldwide
As a hydroponic greenhouse manufacturer, after years of dedication to facility agriculture, Sainpoly has accumulated extensive experience in hydroponic greenhouse projects and has successfully delivered a wide range of hydroponic system solutions. These cover all mainstream hydroponic modes, including Nutrient Film Technique (NFT), Deep Flow Technique (DFT), aeroponics, and ebb-and-flow irrigation technology. From large-scale commercial production greenhouses to research and experimental facilities and urban plant factories, Sainpoly consistently delivers professional technical support, reliable product quality, and comprehensive services to help customers achieve efficient soilless cultivation.
Sainpoly Professional Hydroponic Greenhouse: Integrated hydroponic planting system and highly reliable greenhouse structure, capable of withstanding extreme weather conditions such as severe cold, heavy snow, strong winds, and high temperatures. Source factory supports full-size customization and provides turnkey services.
Sainpoly's professional-grade Hydroponic greenhouse integrates hydroponic planting units with extreme climate-resistant enclosure structures. It is directly supplied by the manufacturing base and accepts personalized customization of all sizes. The delivery method is a one-stop general contracting service, and after user acceptance, it can be directly put into production and operation.
Sainpoly professional-grade hydroponic greenhouse ensures that extreme weather conditions no longer affect harvest - integrated hydroponic planting combined with highly reliable structures blocks out severe cold, heavy snow, strong winds, and high temperatures; Direct supply from the source factory, customized size according to demand, one-stop delivery, ready to use upon landing.
Sainpoly professional-level flat hydroponic greenhouse adopts a single-layer flat planting bed layout, with natural and uniform lighting, no need for layered supplementary lighting, and simpler and more intuitive operation and maintenance. The integrated high-efficiency hydroponic system and highly reliable greenhouse structure can withstand extreme weather conditions such as severe cold, heavy snow, strong winds, and high temperatures. Source factory supports full-size customization and provides turnkey services.
Our Classic Gothic Greenhouse Projects Worldwide
Sainpoly's Gothic Greenhouse offers a classic pointed-arch design with high strength, efficient drainage, and ample space. Built for harsh weather—heavy rain, snow, and strong winds—it ensures stability, insulation, and durability for large-scale farming. We provide full turnkey services from design to after-sales, with customized options for any climate to deliver reliable, productive results.
SAINPOLY Gothic Greenhouse is designed for the commercial cultivation of high-end flowers. The pointed roof structure optimizes the light incidence angle all year round. Combined with diffused glass, it achieves uniform light intake. It supports precise temperature control of ±1°C, equipped with double-layer shading and mist humidification systems to guarantee the yield of Grade A flowers. As a direct supplier factory, we provide full-process services ranging from light environment simulation to flowering cycle guidance.
The SAINPOLY Gothic Greenhouse is developed for year-round factory cultivation of leafy vegetables. The pointed roof enables efficient natural ventilation. Combined with the triple evaporative pad cooling system, it keeps internal temperature below 28℃ in summer. The ebb-and-flow irrigation system saves 30–40% water. Directly supplied by the source factory, we provide full-process services ranging from variety selection to harvest training.
The Sainpoly Gothic greenhouse features a pointed roof ridge and steep slope roof, which helps snow to slide off on its own, thereby reducing the risk of structural loads. At the same time, its interior space is spacious enough to support stable production of various vegetable crops throughout the year.
The Sainpoly Gothic greenhouse adopts a pointed roof ridge and steep slope roof design, which facilitates the sliding of snow and reduces the risk of structural load. The interior space of the greenhouse is abundant, supporting the year-round stable planting of various vegetable crops.
Our Classic Semi-closed Greenhouse Projects Worldwide
Sainpoly's Semi-closed Greenhouse offers a premium balance between open and fully enclosed systems, combining environmental stability with cost efficiency. Equipped with intelligent ventilation, temperature control, and integrated irrigation, it ensures optimal crop growth, higher yields, and superior quality. We provide full one-stop services—design, installation, training, and beyond—with customized solutions tailored to any climate, crop goals, and budget.
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.
Sainpoly semi-closed greenhouse, world-class environmental control architecture, can withstand various harsh weather conditions and ensure the continuous production of diverse crops such as tomatoes, peppers, cucumbers, leafy vegetables, strawberries, and herbs throughout the year. The source factory supports customization of any specifications, delivering the entire process from design to production, helping commercial growers achieve stable and increased income.
The Sainpoly commercial semi-closed greenhouse is equipped with a world-class environmental control system architecture. Through positive pressure environmental control and airflow regulation technology, it can easily cope with extreme weather conditions such as severe cold, heavy snow, strong winds, and high temperatures. Tomatoes, colored peppers, cucumbers, and other vegetables achieve an annual stable production. The source factory supports full-size personalized customization and provides one-stop turnkey services for design, production, installation, and commissioning.
Commercial Greenhouse Application Solutions Suitable For Various Growth Environments
Resolve restrictions on open field planting and achieve year-round large-scale vegetable cultivation Multi span film/glass greenhouse, ensuring supply chain stability Implement off-season planting, improve fruit sugar content and appearance, and reduce transportation losses Wenluo greenhouse precise environmental control greenhouse, achieving off-season planting Solve the pain points of difficult regulation of flower flowering period, high requirements for appearance, and frequent occurrence of pests and diseases Customized Wenluo/PC board greenhouse, flowering period control system, precise control of market launch time Solve the pain points of low survival rate, long growth cycle, and rapid disease transmission in traditional seedling cultivation Specialized seedling greenhouse combined with seedbed system to shorten the cycle Solve problems such as extreme environmental requirements, substandard active ingredients, and high certification thresholds Research and development of scientific research grade Wenluo glass greenhouse, with a full traceability system that meets GAP/GMP certification Solve the problems of traditional soil cultivation water resource waste, soil pollution, and low space utilization efficiency Equipped with NFT/DWC hydroponic system and vertical planting scheme to achieve soilless green planting Ecological balance is difficult to control, water quality deteriorates rapidly, and the technical threshold is high Customized circular hydroponic system and water purification equipment to achieve ecological symbiosis between fish and vegetables Solve the pain points of difficult planting and high cost in high temperature/cold/windy/desert areas Exclusive high-temperature/snow/wind resistant greenhouse design, achieving stable planting in harsh environments turnkey serviceOne-stop Full-cycle Service, Escort Your Commercial Greenhouse Project
Customized DesignWith a 18-year industry experience design team, we conduct on-site surveys and, based on climate data analysis, provide a comprehensive customized solution including 3D modeling / construction drawings / planting planning, tailored to local planting needs.
Precision manufacturingStandardized intelligent production lines, robot welding / laser cutting, three-inspection quality control system, CE certified quality, ensuring products meet the import standards of the European Union, the Middle East, Central Asia and other overseas markets.
Global Installation ServicesModular installation design, accompanied by detailed manuals and video guidance to support your local team in quick and independent installation. Professional construction teams can also be dispatched for overseas projects to ensure efficient implementation and shorten the construction period.
Lifetime after-sales guaranteeWe offer a one-year warranty and lifetime after-sales service. Our multilingual team is available 24/7 and responds promptly. Through remote equipment debugging and fault detection, we will promptly solve all kinds of problems you encounter during the planting and operation process.
Agricultural consulting and operation hostingProvide professional guidance on planting planning, water and fertilizer management, environmental control strategies, etc. For clients who wish to operate with light assets, we also provide comprehensive operational custody services - our team is responsible for the daily management of the greenhouse, ensuring optimal growth conditions and maximizing output.
Our Solutions
SAINPOLY's vegetable greenhouse cultivation solutions focus on "climate adaptation, precision planting, quality and efficiency improvement". We provide full-cycle services ranging from greenhouse customization, manufacturing and installation to system integration and technical support. By tailoring exclusive solutions to local climate conditions and planting requirements, we effectively address key cultivation pain points, enabling stable high yields and standardized operations.
who we areGlobal Commercial Greenhouse Solution Provider
Since 1997, Sainpoly has grown from a greenhouse parts supplier to a leading manufacturer of commercial greenhouse systems. Based on a 32000 square meter production base and over 80 countries' project experience, we focus on providing efficient, durable, and cost-effective greenhouse solutions for professional growers and agricultural enterprises worldwide.
We have established long-term strategic partnerships with leading global suppliers such as Follett, Covestro, and Pruva to ensure that every core component meets the highest quality standards.
We have 15+independently developed utility model patents, integrated a professional team of over 60 people and a multilingual overseas service network. We have completed large-scale greenhouse projects in 80+countries, ensuring efficient execution and stable production of each project.
We are equipped with advanced equipment such as robot welding, laser cutting, and automatic stamping to achieve micrometer level machining accuracy. Strictly implement the ISO quality management system, cooperate with CE certification, and ensure zero defects in factory products.
We work hand in hand with our clients to develop greenhouse systems that can withstand the test of time. Research and development focus on reducing energy consumption, optimizing resources, and meeting the constantly changing needs of growers. What we are building together is not only a greenhouse, but also a sustainable agricultural future.
Why Choose Sainpoly
With a 32,000㎡ facility and 25 years of experience, we provide complete, factory-direct greenhouse solutions. From bespoke design and precision production to professional installation, we handle everything under one roof. Our systems are internationally certified, climate-proven, and built to ensure your maximum productivity in any environment worldwide.
With a 32,000 m² production base, 90% of our core products are self-manufactured. We adopt robotic welding, laser cutting, and micron-level precision processing, along with hot-dip galvanizing anti-corrosion treatment, ensuring a service life of over 15 years.
We hold CE certification, ISO 9001 quality management system certification, and 15 utility model patents. Our products meet import standards in the EU, Middle East, Central Asia and other regions, and we can provide support for customs clearance and acceptance.
We offer end-to-end services from customized design and precision manufacturing to installation guidance and after-sales support. Our engineers can be dispatched for on-site supervision, or we can provide guidance to enable your local team to carry out independent installation.
The design team is able to continuously iterate product solutions based on climate data and planting needs from different regions around the world. From accessory production to intelligent greenhouse systems, we provide our partners with validated and practical commercial greenhouse solutions.
25 years of industry experience, exporting products to over 80 countries, familiar with import standards and project execution processes in different regions, able to provide customs clearance documents and project support.
Contact usLet’s Build Your Commercial Greenhouse Together
Share your project details – we’ll provide a tailored solution and a clear roadmap to success.
Copyright © 2026 Weifang Sainpoly Agriculture Technology Co., Ltd.Sitemap