Replacement cylinder
Universal heat-driven cylinder for any automatic greenhouse opener.
The cylinder is the heart of every automatic opener and the part that eventually needs replacing. Ours fits every opener on the market, which makes it a practical spare for distributors and a service item for greenhouse owners.
It delivers up to 20 kg of force with a 65 mm stroke and activates between 16 °C and 30 °C. The body is machined from aluminium and the piston from stainless steel, then finished in black.
We make the cylinders ourselves, on the same lathes as the rest of the opener, so specifications are the same from batch to batch.
Technical specifications
| Force | up to 20 kg |
|---|---|
| Stroke | 65 mm |
| Operating range | 16–30 °C |
| Body | aluminium, black finish |
| Piston | stainless steel |
| Compatibility | all automatic openers |
| Warranty | 2 years |
Key features
Fits every opener
A universal replacement, whatever opener you run.
Made in-house
Machined on our own lathes, same spec every batch.
Aluminium and stainless
Light, corrosion resistant, built for outdoor use.
16–30 °C activation
Matches the window opener exactly.
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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Stronger unit for greenhouse doors and larger vents. Opens to 90° for fast heat release.
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