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| PUNCHED BRUSHES - TECHNICAL CHARACTERISTICS OF BRUSH BODIES |
As outlined previously, the support of the brush is the element that sticks the anchor that holds the tuft. Normally, therefore, it is relatively soft material such as wood or synthetic substances. Exploiting the deformability of the anchor can be used as support material including metal such as aluminum and brass.
Brushes that work in "normal" conditions, namely temperature, acid-free, with no humidity and not subjected to heavy loads, in principle, can be used with any type of body: choice will depend on the quality that the brush will have and by economic considerations.
For brushes working in special conditions, however, the choice of the body comes from purely technical considerations. |
| Material |
PS |
A |
T
max |
T
min |
R |
RE |
RC |
D |
FDA |
Principal application |
| PVC |
1,40 |
0,05 |
+60 |
-5 |
55 |
10E15 |
XX |
80 |
|
Brushes without specific technical requirements |
| PA |
1,13 |
10 |
+95 |
-30 |
70 |
10E11 |
X |
75 |
|
Food industry |
| PP |
0,91 |
0,03 |
+100 |
0 |
35 |
10E17 |
XX |
70 |
|
Food industry, moist or chemically aggressive environments, large size roller brushes |
| PE |
0,96 |
0,02 |
+80 |
-50 |
28 |
10E16 |
XXX |
65 |
|
Large flat brushes, chemically aggressive environments |
| POM |
1,41 |
0,50 |
+100 |
-50 |
65 |
10E15 |
X |
80 |
|
Food industry, high precision machining applications |
| PET |
1,34 |
0,50 |
+110 |
-20 |
55 |
10E14 |
XX |
80 |
|
Food industry, high precision applications and aggressive environments |
| PTFE |
2,18 |
|
+120 |
|
25 |
10E18 |
XXX |
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Food industry, high temperature environments |
| PEEK |
1,32 |
0,50 |
+180 |
-20 |
95 |
10E16 |
XX |
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High working temperatures |
| PUR |
1,30 |
|
+85 |
-20 |
|
|
XXX |
43 |
|
Belt brushes |
| WOOD |
0,72 |
25 |
+300 |
- |
130 |
10E12 |
X |
60 |
|
High temperatures, lightweight brushes |
| PLYWOOD |
0,67 |
37 |
|
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10E12 |
X |
65 |
|
High temperatures, linear brushes |
| LEATHER |
0,85 |
60 |
+110 |
-30 |
|
- |
XX |
40 |
|
Large size belt brushes |
| ALUMINIUM |
2,70 |
- |
+200 |
|
300 |
2,8E-06 |
XX |
- |
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Rigid and antistatic brushes |
| BRASS |
8,50 |
- |
+280 |
|
420 |
7E-06 |
XXX |
- |
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Brush bodies offering high mechanical strength |
| STEEL |
7,85 |
- |
+450 |
|
500 |
1,2E-05 |
X |
- |
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Motorised brushes |
| STAINLESS STEEL |
7,90 |
- |
+600 |
-150 |
515 |
1,2E-05 |
XXX |
- |
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Motorised brushes, food industry |
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LEGENDA
PS = Specific gravity (Kg/dmc)
A = Water absorption (%)
Tmax = Maximum working temperature (°C)
Tmin = Minimum working temperature (°C)
R = Tensile strength (N/mmq)
RE = Electrical impedance (Ohm cm)
RC = Chemical Resistance (X = poor, XX = moderate, XXX = good)
D = Hardness (ShD)
FDA = Food grade material in compliance with US Food and Drug Administration norms. Ambient temperature only. |
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