Sweeping Brushes

Side brushes are defined by 3 aspects:

• Sweeping material

The vast majority of side brushes of sweepers use a mixture of 3×2 mm polypropylene plastic filaments (some PET variants as well) mixed with 3.3×0.6 mm flat steel rod as sweeping material.

The brush can be defined to be less aggressive by eliminating the steel, resulting in brushes made only of plastic, which generally do not leave marks on steels and pavements, are more economical but have a shorter lifespan than the previous ones.

Also, more aggressive and stronger brushes than the mixed ones are made, using only the 3.3×0.6 mm steel rod, which are mainly used in very aggressive environments with a large amount of debris such as ports, industrial areas, or roads. Occasionally, the side brushes made only of steel are used as a light brush cutter.

A still quite unknown variant is the silent brush. It is a brush whose sweeping material is 1×7 or 1×19 2 mm steel cables coated either with PA6 or rubber, and they are the most expensive brushes with less cleaning capacity than the classic ones, but also the ones with the longest lifespan.

The reason is that the cable is 4 mm thick and in the end, the arc of the inserters introduces at most 2 cables into the inserter compared to 8 or 10 plastic filaments, resulting in a less dense side brush in terms of sweeping units than the previous ones.

There is a final variant that can be considered a side brush, which is the weed brushed, integrating large blocks of steel cables coated with plastic, resulting in very hard brushes that have a very strong removal capacity and are designed to clear weeds from curbs and small bushes.

They are very strong equipment, sometimes with welded steel rods added to give them more sweeping capacity and not just function as brush cutters.

• Disc measurements

The most important is the outer diameter of the disc, as this defines its size, but it is also necessary to consider the measurement of the inner diameter of the side because there are machines that introduce elements in their center and could not be mounted.

Most use filament output of about 280 mm and the same opening angles.

• Anchors

Each sweeper has defined its own anchors, so it is necessary to take them into account when manufacturing the side brush.

The brush has some defined holes in which the fixing screws to the sweeper are installed.