The strongest automatic opener in the range, intended for large and heavy roof windows and flaps. The hydraulic thermal cylinder opens and closes the window automatically according to the temperature, completely without electricity.
- Lifting force up to 15 kg, for windows up to 80 kg total weight
- Hydraulic damping for quiet operation even in wind
- A strong return spring for reliable closing
- Works without electricity and without batteries
The choice for demanding users and larger greenhouses, where ordinary openers cannot cope.
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