Punched brushes
The punched brushes are made up of bunches of filament inserted on the brush body by means of a metal element called “anchor” which sticks to the bottom of the hole previously made. Depending on the shape assumed by the brushing surface, the punched brushes are divided into flat, roller and frontal brushes. Then we have belt brushes (flexible) and antistatic brushes, which eliminate the electrostatic charge from the surfaces.
Punched brushes
The punched brushes are made up of bunches of filament inserted on the brush body by means of a metal element called “anchor” which sticks to the bottom of the hole previously made. Depending on the shape assumed by the brushing surface, the punched brushes are divided into flat, roller and frontal brushes. Then we have belt brushes (flexible) and antistatic brushes, which eliminate the electrostatic charge from the surfaces.
Specifications
Generalities
The main feature of the punched brushes is their versatility. In fact, since the bunches of the elements are independent from each other, they can be arranged in such a way as to make the brush take on both simple and remarkably complex shapes. For this reason the punched brushes are particularly suitable for being built in all shapes and sizes, and are irreplaceable when the support also has a mechanical function in the system in which they will be installed. For these reasons, the punched brushes are the ones that guarantee the highest dimensional accuracy and substantially the highest quality of execution.
The diameter of the bunches is of fundamental importance in the design of the technical brush.
In fact, the overall performance during the work phase will also depend on it. There is a relationship between the diameter D of the bundles and the drilling depth P. In turn, the depth P is limited by the thickness S of the support.
The table shows the possible diameter of the bunches and the relative values of P and S. When there are supports of large thickness, the choice of the diameter of the bunches is determined by non-dimensional reasons. For example, we will orient ourselves on large bunches for brushes subjected to great effort (and which therefore require a strong anchorage). Or you may prefer small bunches to get a high density or very soft brush.
| D (mm) | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 | 5.5 | 6.0 | 6.5 | 7.0 | 7.5 | 8.0 | 9.0 | 10.0 | 11.0 | 12.0 |
| P (mm) | 5.0 | 5.0 | 6.0 | 7.0 | 8.0 | 9.0 | 9.5 | 10.0 | 11.0 | 12.0 | 12.5 | 13.0 | 14.0 | 15.5 | 17.0 | 18.5 | 20.0 |
| S≥ (mm) | 6.0 | 6.0 | 7.0 | 8.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 16.0 | 18.0 | 20.0 | 22.0 | 24.0 |
The bunches can be arranged in any way on the brush body. When the arrangement assumes a regular characteristic, it takes the name of RETICLE. Of course, there can be infinite types of lattice, however the most used are those below.
OFFSET RETICLE
it is the most used and is used in the following cases:
- particularly dense brushing surface;
- extremely uniform brushing surface.
PARALLEL RETICLE
is used in the following cases:
- the brush must easily discharge the debris without clogging;
- mechanical parts must slide between the bunches;
- the brush must be cut into parts by the user.
HELICAL RETICLE (rollers only)
is used for rollers in the following cases:
- the brush must convey the treated material on one side;
- the brush must act on the surface to be treated gradually and delicately;
- any possibility of scratching on delicate surfaces must be avoided.
The helix can be formed by various principles each having several rows of bunches.
Our technical department is at your disposal to recommend the most suitable arrangement of the bunches according to the use of the brush.
In order for you to have a precise idea of what we propose to you or to make a choice yourself, we believe it is useful to report the diagram of the most used lattices in practice, in full size.
It is understood that all intermediate and even the most extreme solutions are possible.
Types of punched brushes:
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Do you want to request an offer?
Select for which type of brush you want to request more information
