This text is machine translated.
All you need to know about electric belt winders
-
What was a belt winder?
-
Mechanical vs electrical belt winder
-
Installation variants: Surface or flush-mounted?
-
Possible accessories
-
Before purchase: Measure belt length
-
Questions and answers
What was a belt winder?
A belt winder ensures that a roller shutter can open or close.
It is a device on which the belt of shutters is rolled up or unwound. This is done automatically or manually, depending on the device. If the belt is wound up, the roller shutter opens while it closes when the belt is unwound. Mechanical belt winders are well known, but the electrical alternative is becoming more and more popular.
The belt winders can be mounted in the surface as a so-called swivel winder (Figure 2) or disappear almost invisibly in the brickwork by means of flush mounting (Figure 3). While the choice remains free in the new building, care must be taken when retrofitting the old building to determine which version was used before. Otherwise, the installation in the flush-mounted can become too expensive afterwards.
Mechanical vs electrical belt winder
Roller shutter belt winders are available in different colors and for different belt widths. In addition, the tensile force may vary for each model. In addition, the winders can be operated mechanically and thus manually or as an electronic version points:
| Type | Description |
|---|---|
| Mechanical | A mechanical winder for the roller shutter belts consists of a roller which is tensioned with a spring. The end of the belt of a roller shutter remains in the device. If this is to be opened, the belt will wrap on the roller due to the spring tension. Mechanical winders allow the cord to be rolled up by hand. This model already has a cord of five meters in length. In addition, surface mounting is provided. |
| Electrical | The modern alternative is electric belt winders, which are becoming more and more popular especially in the course of the smart home. The shutters can be controlled from any conceivable location via radio or remote control. The automatic opening or closing of the shutters works with the help of an electric motor, which is responsible for the drive of the winder. There is also an automatic control system. For example, an electric belt winder can be further upgraded using special twilight modules. These ensure that a blind closes automatically when a certain brightness value is undershot. |
Tip: For maximum comfort and ease of use, make sure that the products swivel. The product in the sample photo can° be rotated by 180.
Installation variants: Surface or flush-mounted?
If you want to install the belt winder, you must first remove the old roller shutter winder. To do this, you must completely close the roller shutter and then loosen the screw connections on the cover plate that cover the old winder. Be careful when you release the spring, as there is a risk of injury. After the spring has been released, the winder can be removed and the belt strap of the roller can be unwound. The new device is now attached. There are two ways to do this:
Surface-mount
The easier way to attach an electric belt winder is to mount it in the surface. You can simply continue to use the new device on the wall screws and the previous belt strap as usual. You then connect the wireless belt winder to the power supply using a standard power cord. This type of mounting is particularly recommended if the old device was already an AP winder.
Flush mounted
The advantage of this variant is the placement of the electric belt winder in the masonry. Again, you can continue to use the old belt strap if the device to be replaced was also a UP winder. Simply insert the new device into the wall opening in which the mechanical winder was previously located.
Possible accessories
The use of electric belt winders is particularly comfortable with accessories such as remote controls (Figure 4). These allow convenient control, for example, from the desk. Some devices control up to six blinds simultaneously or individually.
Other recommended accessories include sun sensors. These enable light-dependant controls, for example, the automatic opening of the blinds in direct sunlight.
Before purchase: Measure belt length
To ensure that your electric belt winder fits the individual requirements of your company, you should measure the length of the belt before purchasing.
Rule of thumb
The average belt strap is 1.3 millimeters thick and has a belt winding capacity of 5.5 meters. Smaller belt straps can be wound on a roll for longer.
If a belt is too long for the electric belt winder roll, it cannot be adequately picked up. Therefore, we recommend that you take a look at the manufacturer's instructions or to be sure to pull out the belt completely. Measure it when the shutters are open and the belt is blocked by a screwdriver, for example.
Questions and answers
How do ich calculate the tensile force for the belt winder?
Depending on the roller shutter, a different pulling force of the belt winder is required. This depends on the weight, which is about 4.5 kilograms per square meter for plastic products. On the other hand, wooden shutters weigh around 10 kilograms per square meter. If the roller is running smoothly, the traction force can be calculated by multiplying it by a factor of 1.25. In case of doubt, our experts will also be at your side with advice and support.
Where can electrical belt winders be used?
In principle, the application areas are flexible. It is possible to retrofit all manual by electric belt winders. Just pay attention to how the previous winders were installed and select the new version accordingly (for example, flush-mounted winders as a replacement for models lying in the wall).
When is the electrical belt winder recommended as a replacement for a mechanical one?
In newer buildings, you should use the electric belt winder when replacing old winders, as the roller shutter boxes are usually not easily accessible. All you have to do is ensure that the electric belt winder can be supplied with power.
What are the advantages of upgrading to the electrical version?
The advantages are obvious: An electric belt winder is comfortable and allows convenient wireless operation. Depending on the model, the opening and closing of the shops can also be programd in advance or adjusted to twilight conditions. The devices have a long service life and points through their simple installation. All you need is a power source and do not touch the mechanism in the roller shutter box.