This is what makes this form of ventilation so special
For an optimal stable climate and animal welfare Simple and flexible installation Durable and robust Enables precise supply air control and cros
What do the different types of lifting windows have in common?
They are driven by Lock products. Whether single windows, continuous windows or double-lift windows - a selection can be made as require
With this type of ventilation, a vertical surface is moved up or down as required by precise control mechanisms. The lifting or closing process can be carried out using various types of drive. An el
Advantage Free-range farming of a special kind Improve the immune system through more exercise, sunlight & fresh air Benefit Improving the farmer’s image Low maintenance Effi
Advantage Specially developed and proven systems for over 20 years Special balancing mechanism Long service life Possibility of automation Large ventilation heights up to 4.50m Lengths up to 200m T
Function and advantages at a glance:
Ventilation from top to bottom for a pleasant room climate. Clear opening height of up to 3 meters for maximum flexibility. Summer position:
VariVent® Twin – Innovation for your building ventilation!
Discover the groundbreaking technology of VariVent® Twin, a patented system that revolutionizes the performance of conventional VariVent sys
Variable opening from top and bottom:
Our systems are proud holders of European patents 0982466 and 1388637 and represent a unique, fully variable concept worldwide.
The VariVent® TC offers y
Thanks to our bottom-opening winding systems with VariVent® BC/BF, you will not only experience the highest performance, but also a sustainable and material-friendly application. The simple installa
Opening from below:
Our bottom-opening winding systems are available with an innovative fixed drive or climbing drive as well as a special compensation mechanism. In addition to the short installatio
