Pressed gratings

The manufacturing process involves pressing a transverse flat bar forcefully into a specially cut supporting flat bar. This creates a permanent connection, holding the flat bars at the specified spacing (mesh), then the grating is galvanised, which acts as an anti-corrosion protection.

Press-in gratings are widely used in industry, construction and the architectural sector.

Production is carried out using computerised and automated production lines. The machines used, with special control systems, ensure high quality, repeatability and precision of the final product, in addition to minimum production costs. At the same time, a high level of production accuracy is ensured, enabling us to meet the detailed technical requirements of our customers.
The elements that make up the structure of the KWO are the interconnected load-bearing and transverse flat bars.
The load-bearing flat bars perform the task of transferring the loads acting on the gratings during their service life, while the transverse flat bars impose the lattice form, connect the load-bearing flat bars and position them between each other.
The length of the bearing flat bar should correspond to the span of the beams of the substructure, with the proviso that the width of the support on the bearing bar should be equal to the height of the grating and not less than 30 mm. The supporting dimension is conventionally designated ‘L’ and is also defined by its length. The second dimension, which is the length of the transverse flat bar, is the width ‘B’.

As standard, press-in gratings are framed with a flat bar of the height of the supporting flat bar, however, if required, we can produce the framing with a different profile (angle, channel, closed profile, etc.) – no framing is also possible.
The spacing between the supporting flat bars and the cross bars is a mesh. Pressed gratings are manufactured with a mesh size ranging from 11.1 mm to 99.9 mm (11.1 mm module).
Pressed gratings are manufactured in accordance with DIN 24537, tolerances according to RAL-GZ 638 and the technical conditions for manufacturing gratings. The overall dimensions of the platform gratings are manufactured with negative tolerances of +0 to -4 mm (note: at the design stage, the spacing between the gratings should be assumed to be 0).
The material grade used in production is S235JR steel, in accordance with EN 1002. At the final production stage, hot-dip galvanisation is carried out in accordance with EN ISO 1461. When selecting gratings, we encourage you to seek our advice.

The spacing of the supporting flat bars is selected mainly in consideration of the loads to which the grating will be subjected and the functions it will perform.