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Heavy-duty gratings are distinguished by a thicker and higher supporting flat bar, which means that the grating can carry heavier loads than a normal grating.
SELECTION OF GRATINGS FOR WHEELED TRAFFIC
Gratings are made from steel grades:
Other material types on request
The gratings are manufactured according to standards: DIN24537 and RAL GZ 638
Hot-dip galvanisation is in accordance with EN ISO 1461
Grates are manufactured with a negative tolerance (+0 to -4 mm)
As standard, the gratings are framed with a flat bar equal to the height of the supporting flat bar. However, it is possible to change to another type.
We denote the length of the load-bearing flat bar by L and the length of the transverse flat bar by B. Maximum dimensions: L = 2500 mm, B = 2000 mm,
On the technical drawing, the load-bearing flat bar is marked with the following symbol.
DIMENSIONS OF LOAD-BEARING FLAT BAR
| Height [mm] | 20; 25; 30; 40 | 20; 25; 30; 35; 40; 50 | 30; 40 |
Thickness [mm] | 1.5 | 2; 3 | 4 |
DIMENSIONS OF THE TRANSVERSE FLAT BAR
| Height[mm] | 9 | 9 | 9 |
| Thickness [mm] | 1.5 | 2 | 2; 3 |
ALLOCATION OF MESH
| Mesh size (between support bars) | 16; 22; 33 | 44; 55; 66 | 77; 88; 99 and other |
| Mesh spacing (between transverse bars) | 22; 33; 44; 66 | 11; 22; 33; 44; 55; 66; 99 | 33; 44 |
