Alumat Zeeman develops seamlessly aligned horizontal screening systems. Anywhere, anytime
In addition to ventilation, screening is crucial for creating an optimal climate in the greenhouse – and for a better crop yield. The choice of a horizontal screening system depends on your reasons for installing the screening system. Do you want to save energy? Restrict the emission of light? Keep the amount of sunlight entering your greenhouse to a minimum? Thanks to Alumat Zeeman screening systems you can be assured of the right solution for every situation. Contact Alumat Zeeman for fully customized screening systems, sub-systems and parts.
Alumat Zeeman supplies horizontal screen systems based on proven drive principles such as wire screen and pull/push systems. We are flexible and competitive thanks to the in-house production of such items as sheet metal, wire and tubes. Even if just a part of your screening system needs to be replaced, you will find that we have a wide range of products in stock. Our screening cloths are procured from renowned companies in the sector, such as Ludvig Svensson, Phormium and Ridder.
What are the benefits of a wire screen system
The most commonly used system for controlling horizontal screening systems today is one in which the screen is operated by means of draw cables. Wire screens are used in glass greenhouses as well as polytunnels. The advantage of a wire screen is that it intercepts less light than a pull/push system.
The addition of slide systems ensures that the screen is always closed tightly and minimizes the risk of unexpected obstacles that can cause damage. All the essential components (e.g. drive shafts, reversing pulleys with bearings on both sides, draw cables and other parts) have already proven their worth. Most of the parts used in Alumat Zeeman systems are manufactured in our own production facilities. Other parts are selected on quality, purchased in bulk and kept in stock by us.
The ideal wire screen system requires the optimum balance of a number of factors:
- The weight of the screening fabric versus the slide system force and the number of compartments per division
- The quality of the draw cable used, taking into account the use interval of the screening system
- The distance between the draw cables and the stiffness of the screen profile
Screens with less stress on gable ends
Every greenhouse deserves an optimal climate. Alumat Zeeman’s pull/push system reduces the forces on the greenhouse’s gable ends and facilitates the use of compartments with less Nm per motor compared to a wire screen. The pull/push system can be used in polytunnels with crop girders and glass greenhouses with lattice girders. Thanks to our clamp/spring diabolo brackets you can mount the system onto the most common Venlo lattices without drilling. We use only high-quality Tata Contiflo branded pull/push tubes and shafts in our systems. These have a special passivation layer that counteracts white rust, resulting in a smooth, silent and durable screening system.
The advantages of a pull/push screening system
- Low load on the gable ends
- Less Nm needed per m2 compared to wire screen
- Easy to install
