Flat Screens
- General
- Standard constructions of flat screens
- Standard tolerances
- Finishing
- Frames and reinforcements
- Final products manufactured with flat screens
General
» Construction Drawing
A Flat Screen is simular to a Flat Welded Screen, the only difference being that they are manufactured by opening and flattening slot tubes
Standard constructions of flat screens (special constructions are possible on request)
Flat Screens with dimensions other than those given below are available on request.
The designation for a Flat Welded Screen is for instance: 22S/Q35 - 70
22S = surface wire
Q35 = support wire
70 = distance between support wires in mm
Profile combinations
| Surface profiles | Support profiles | Min.slot opening | Min. pitch in mm | Max. pitch in mm |
|---|---|---|---|---|
| 10S | Q25 | 0.030 | 5 | 17 |
| 11S | Q25 | 0.030 | 5 | 17 |
| 12S | Q35 | 0.050 | 8,5 | 25 |
| 18S | Q35 | 0.050 | 8,5 | 25 |
| 18S | 10x3/25x3 | 0.200 | 17 | 25 |
| 22S | Q25 | 0.100 | 8,5 | 22 |
| 22S | 10x3 | 0.200 | 17 | 25 |
| 28S | Q35/D45/25x3 | 0.200 | 17 | 25 |
| 34S | Q35/10x3/25x3 | 0.200 | 17 | 25 |
| 42S | Q35/10x3/25x3 | 0.200 | 17 | 25 |
| 42S | 38x3 | 0.200 | 25 | 25 |
pitch = distance between support profiles
Dimensions
- For pitch 17-25 mm:
- Max. surface profile length: 3000 mm
- Max. support profile length: 3000 mm
Standard tolerances
Slot size: ± 0,050 mm (max. ± 0,1 mm)
Flatness for a screen without frames: ± 5 mm
| Length | Width |
|---|---|
| ≤ 500 mm | ± 2 mm |
| ≥ 500 mm ≤ 1500 mm | ± 3 mm |
| ≥ 1500 mm | ± 4 mm |
Finishing
- Standard finish:
- flattening
- cutting width and length to fit required size
- Optional finish:
- deburring
- degreasing and pickling
- post-machining for tighter tolerances
Frames and reinforcements
Flat Welded Frames can be welded onto frames or be reinforced by Trislot. This is available on request.
Final products manufactured with flat screens
Basically the same products are manufactured with flat screens as with flat welded screens. If for strength reasons the pitch of the support profiles has to be decreased Flat Screens are used instead of the Flat Welded Screens.