A brush is rather special artefact. Considered in general terms, it has clearly defined geometrical properties and dimensions, while in local terms the work surface is composed of thousands or millions of tiny circles, i.e. the tips of the filaments making up the brush. This characteristic means that a brush is radically different from all other mechanical devices utilised in the technical field. The work surface of a brush can be hard or soft, oriented or isotropic, locally variable, and can offer a very high level of adaptability to match the irregularities of the part to be cleaned. Each filament features an individual behaviour pattern, although overall it is part of a single working surface.
The filaments are therefore the basic component parts of a brush.
Filaments can be of three different types:
Material |
D |
PS |
A |
T max |
T min |
R |
RE |
RC |
FDA |
Principal application |
PA 6 |
0.10 -2.00 |
1.13 |
10 |
+100 |
-40 |
500 |
1xE11 |
X |
|
Food industry, good elastic memory |
PA 6.6 |
0.10 -2.00 |
1,14 |
9 |
+120 |
-40 |
550 |
1xE11 |
X |
|
Food industry, very good elastic memory |
PA 6.12 |
0.07 -2.00 |
1.06 |
3.0 |
+110 |
-40 |
440 |
1xE11 |
X |
|
Food industry, very good elastic memory also with water |
Abrasive PA 6.12 |
0.50 -1.60 |
1.25 |
3.0 |
+110 |
-40 |
440 |
1xE11 |
X |
|
Polishing, satining, finishing |
PA HT |
0.20 -0.80 |
1.18 |
3.7 |
+190 |
-20 |
400 |
|
|
|
High working temperatures |
PP |
0.15 -3.00 |
0.89 |
0.1 |
+80 |
-20 |
470 |
1xE16 |
XX |
|
Food industry, also with water, moderate mechanical stress |
PE |
0.30 -1.00 |
0.92 |
0.1 |
+70 |
-50 |
170 |
1xE12 |
XXX |
|
Chemically aggressive environments, delicate surfaces |
PBT |
0.20 -3.00 |
1.31 |
0.35 |
+100 |
-40 |
420 |
|
XX |
|
Food industry, abrasion resistance also with water |
PEEK |
0.20 -0.80 |
1.32 |
0.15 |
+200 |
|
720 |
|
XX |
|
High working temperatures and high mechanical stress |
FIBRE GLASS |
1.00 -3.00
|
1.91 |
0.25 |
+155 |
|
1450 |
|
|
|
Excellent wear resistance |
THUNDERON |
0.03 |
1.28 |
0.8 |
+150 |
- |
|
5xE-01 |
|
|
Dissipation of electrostatic charges |
HORSEHAIR |
0.12 med
|
1.00 |
50 |
+150 |
-150 |
- |
1xE-16 |
|
|
High temperatures and delicate surfaces |
PIG BRISTLE |
0.15 med |
1.10 |
40 |
+150 |
-150 |
- |
1xE16 |
|
|
High temperatures, more aggressive action than horsehair |
GOAT HAIR |
0.05 med |
1.06 |
60 |
+150 |
-150 |
- |
1xE16 |
|
|
Very delicate surfaces |
TAMPICO FIBRE |
0.25 med |
0.86 |
35 |
+160 |
-150 |
- |
1xE16 |
|
|
High temperature, light abrasive action |
HIGH STRENGTH STEEL |
0.12 -0.70
|
7.85 |
- |
+300 |
- |
1900 |
1.7xE-05 |
X |
|
Cleaning and satining of hard metals |
VERY HIGH STRENGTH STEEL |
0.12 -0.70
|
7.85 |
- |
+300 |
- |
2300 |
1.7xE-05 |
X |
|
Treatment of metals with high mechanical stress |
STAINLESS STEEL |
0.12 -0.50
|
7.90 |
- |
+450 |
- |
2000 |
1.7xE-05 |
XXX |
|
Food industry, presence of moisture or aggressive environments |
HARDENED STEEL |
0.20 -0.70 |
7.85 |
- |
+350 |
- |
2000 |
1.7xE-05 |
X |
|
Harsh mechanical scraping action |
MILD STEEL |
0.06 -0.40
|
7.85 |
- |
+200 |
- |
650 |
1.7xE-05 |
X |
|
Cleaning and satining of soft metals |
BRASS |
0.06 -0.30
|
8.50 |
- |
+160 |
- |
900 |
7xE-06 |
XX |
|
Non-aggressive treatment of metals |
PHOSPHOR BRONZE |
0.06 -0.50
|
8.80 |
- |
+160 |
- |
950 |
7.5xE-06 |
XXX |
|
Non-aggressive treatment of metals, chemically aggressive environments |