drive gearbox for the roof and sidewall ventilation home windows (or vents) of for glass greenhouses – from Venlo greenhouses to open-roof and wide-span greenhouses in a variety of designs, dimensions and types

Adjusting the positioning of the air vents is one of the most important method of regulating the environment in a glass greenhouse. To be able to achieve the ideal greenhouse environment, it is often necessary to ventilate the greenhouse by starting and closing the roof and sidewall ventilation windows (or vents) in a cautiously controlled manner. Ridder has an comprehensive portfolio of precision ventilation mechanisms and drive systems for glass greenhouses

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