Press Welded Grating

I Bar Press Welded grating is a type of press welded grating made of I Bar as bearing bar and square twisted bar as cross bar. As well, I-Bar Gratigs are banded with Flat Bar or at customers’ selection with Angle.

I-Bar grating is visually stronger and comparatively lighter than Flat bar grating if bearing bars at the same clear pitcch.

Maximum transverse (cross) bar length
1025mm, depends on transverse bar pitch.

Maximum bearing bar length
6000mm
 
Usual mesh spacing 
Bearing Bar: 30, 40, 60, 90
Cross Bar: 30, 50, 60, 100

Bearing I-bar
25x5x3 50x7x4
32x5x3 55x7x4
38x5x3 60x7x4
44x5x3 65x7x4
50x5x3 75x7x4

Press welded gratings are produced from steel. The bearing bars (I-Bar or Flat Bar) and the twisted square cross bars are cut to grating size before the cross bars are locked into the bearing bars at a pressure of 1000 kN and – simultaneously – electrically welded at 2500 KVA. Into one unit.

In combination with welded cross bars, non-attenuated bearing bars make for high torsion rigidity.

Press welded gratings are banded with flat bars which, as a rule, will have the same cross section as the bearing bars.

One special form of press welded grating is offshore grating (O-SP-SS), details of which you will find on special forms of gratings. Due to the way the bearing bars are profiled, press welded gratings have a much enhanced anti-skid capability. Please see (anti-skid gratings).