Automatic door opener
Built for greenhouse doors and larger vents. Opens to 90°.
The door opener works on the same principle as the window opener, with a stronger cylinder and a longer stroke. It responds between 18 °C and 35 °C, pushing the door open as the greenhouse warms and closing it as the temperature drops.
With a force of up to 30 kg and a 110 mm stroke it opens the door to 90°, which gives the fastest heat release on hot days. It is designed for heavier doors and larger openings where a window opener would not be enough.
Zinc-coated steel construction for long outdoor service. Mounts quickly on most greenhouse door frames. 2-year manufacturer's warranty.
Technical specifications
| Force | up to 30 kg |
|---|---|
| Maximum opening | 90° |
| Cylinder stroke | 110 mm |
| Operating range | 18–35 °C |
| Power | none, heat-driven cylinder |
| Material | zinc-coated steel |
| Warranty | 2 years |
Key features
Opens to 90°
Full opening for maximum airflow.
30 kg force
Made for heavier doors and larger openings.
18–35 °C range
Wider range for warmer climates and large volumes.
Zinc-coated steel
Stable performance season after season.
Product views
Test it before you order.
We send a free sample set to distributors and greenhouse manufacturers. Mount it, run it through a season, then talk quantities and prices with us directly.
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