Rack-and-pinion vent opening system for greenhouse vents

The LV7R/B and LV20 R/B aluminium racks form part of the Senmatic vent opening system for greenhouse vents. The patented and registered racks are based on more than 40 years’ experience in development and production of rack-and-pinion opening systems. They are therefore thoroughly tested products.

The design of the original Senmatic rack ensures that the weight from the windows is always resting on the Whole rack. The low weight of LV7R/B and LV20R/B meets the requirements for still lighter greenhouse Constructions without reducing the strength. The construction of the rack-and-pinion system ensures also a low noise level during operation.

Solid, reliable and flexible
The meshes are placed as close as possible to the drive shaft, resulting in reduced torque and reduced twisting on the shaft. With less torque required, smaller gear motors can be used. The aluminium rack also exhibits great tolerance towards temperature changes and smaller mechanical irregularities in the construction.