L-system Rack Arms
The rack arm is mounted to a mullion or a wall. The less mounting points available, the sturdier the rack arm needs to be. For example, when it is necessary to bridge a glass surface, or a gap. In situations like these there is simply nothing available to mount the rack arms to. That is why Sunshield offers several types of rack arms.
Flexible and reliable installations
The aluminium louvers from the 145-E and up, as well as the wooden louvers from the 148-W and up, use of the L-system. These louvers are wider, have a greater span, and are heavier than those using the S-system. Hence, these louvers require a sturdier foundation.
Heavy Duty Rack Arm
The heavy duty rack arm has a height of 65 mm. That is why the term L 65 mm rack arm is used interchangeably for this type of rack arm. The heavy duty rack arm has four tracks. The pivot arms are installed in the top track. The remaining tracks are available for mounting.
Box Rack Arm
The box rack arm has a height of 120 mm. And because of that also called the L 120 mm rack arm. The box rack arm has six tracks. The pivot arms are clipped into the top track. The other tracks are available for mounting purposes.
Which type of rack arm is deployed depends on the project at hand. A factor to take into account is the the available mounting points for the support brackets. This is determined by the support distance of a rack arm. In most cases, the L 65 mm rack arm will do the job perfectly. Where this is not possible, 120 mm rack arm will be used. Get in touch with your contact at Sunshield for project advise.
Support distance aluminium louvers
Support distance wooden louvers
Sunshield also has a large assortment of support brackets and a broad experience with different kinds of mounting methods. It is this combination of several types of rack arms, mounting brackets and mounting methods that guarantees a stylish and reliable installation is for every blind, in any situation.
Colours and treatments
Rack arms are made from extruded aluminium, and are usually either powder coated or anodized.