Create the desired climate with a proven truss-rail ventilation system
In a truss-rail ventilation system, the windows are pushed upwards by means of aluminum push rods/lifter arms. These push rods are connected as a set to a push/pull tube that moves back and forth, parallel to the truss. This type of ventilation was designed especially for Venlo greenhouses. This optimum ventilation system requires the right combination of a motor, gearboxes, diameter and wall thickness of the push/pull tube and the push rods/lifter arms.
The TNO CASTA greenhouse vent program enables calculations to be made for your ventilation system according to established standards. This gives you the certainty of a sustainable, reliable and accurate system that regulates the climate in the greenhouse.
Alumat Zeeman: your supplier for truss-rail ventilation systems
- Parallel windows for optimal closure and opening of the windows
- Push rods/lifter arms that meet the specification of the NEN3859 standard for your specific greenhouse roof, windows and wind region
- High-quality durable materials that you can rely on
- Reliable motors and gear boxes with a perfectly matched power output
- Smoothly rotating and custom-made shafts
A double continuous Venlo rail ventilation system
A double continuous Venlo rail ventilation system allows you to open and close full-width windows on either side of the ridge, independently of one another. This is done by means of two push/pull tubes that are placed one on top of the other above the lattice. In this type of vent opening system, the sets of push rods/lifter arms of the opposite windows hinge into each other. Our experience and advanced drawing capabilities for a precisely plotted 3D model are essential for a reliable and perfectly functioning system.
