August 12, 2026
Weifang Sainpoly Greenhouse Equipment Co., Ltd. is a premier Chinese manufacturer specializing in the research, development, and production of Venlo-type greenhouse structures. Founded in 2009 and headquartered in Qingzhou, Shandong Province — the heart of China's greenhouse manufacturing hub — Sainpoly has grown into a trusted global supplier with partners in over 72 countries including France, the Netherlands, Germany, and other key European markets. With a 16,000 m² production workshop and an annual output capacity of 100 hectares, 90% of our components are manufactured in-house, ensuring rigorous quality control across every project.
Our flagship Venlo Greenhouse category spans 22 commercial models designed to meet Europe's diverse horticultural demands. From Venlo Glass Greenhouses with up to 95% light transmittance — ideal for high-light crops in northern European latitudes — to Polycarbonate (PC) Sheet Venlo Greenhouses that deliver superior thermal insulation for energy-conscious operations in Scandinavia and Eastern Europe, each structure is engineered with European climate standards in mind.
| Greenhouse Category | Covering Material | Light Transmission | Best For |
|---|---|---|---|
| Venlo Glass Greenhouse | Tempered / Float Glass | Up to 95% | Tomatoes, Peppers, Roses, Cucumbers |
| Venlo Polycarbonate Greenhouse | Multi-layer PC Panels | 80–90% (diffused) | Leafy Greens, Herbs, Strawberries, Seedlings |
| Dutch Venlo Greenhouse | Glass or PC Hybrid | Customizable | Vegetables, Flowers, Research Facilities |
Each Venlo greenhouse can be equipped with a comprehensive suite of automated systems:
All Sainpoly greenhouses carry CE certification. Our quality management system follows ISO 9001 principles, and we welcome third-party inspections before shipment. We provide full technical documentation packages — including structural calculations, material certificates, and installation manuals — to support building permit applications in EU jurisdictions.
From initial design consultation through on-site installation supervision and after-sales maintenance, Sainpoly delivers a turnkey experience. Our engineering team works in your time zone and can produce detailed 3D renderings and structural simulations before a single component is manufactured. With a typical production lead time of 20–30 working days and reliable containerized shipping to major European ports (Rotterdam, Hamburg, Antwerp, Le Havre), your project timeline stays on track.
Interested in learning how a Sainpoly Venlo greenhouse can transform your commercial growing operation? Contact our European sales desk today for a customized proposal.