Safety Grill Steel Grating and Used for Roof of Buliding
Steel grating also named bar grating.
The grating is with a square grid in the middle, composed by flat bearing bar and cross roun bar. mainly used as gutter cover, Steel structure platform walkway, steps of steel ladder, etc.
The steel grating is generally made of carbon steel, and the surface is hot-dip galvanized, which can prevent oxidation. It can also be made of stainless steel, aluminum steel.
According to the welding method, it can be divided into: machine forge welding type and handmade manual welding type.
According to surface of the loaded flat steel, it can be divided into: flat type, tooth type and "I" type.
According to its purpose, it can be divided into: trench cover, platform walkway, stair treads.
According to its mateiral, it can be divided into: midl steel, aluminum, stainless steel.
| Type |
Width mm |
Thick mm |
KG/m |
Clear Span mm |
| |
200 |
400 |
600 |
800 |
1000 |
1200 |
1400 |
| G505/30/50 |
50 |
5 |
80.9 |
U |
2361 |
590 |
262 |
147 |
94 |
65 |
48 |
| D |
0.14 |
0.55 |
1.24 |
2.2 |
3.45 |
4.97 |
6.82 |
| G505/30/100 |
77.9 |
C |
236 |
118 |
78 |
59 |
47 |
39 |
33 |
| D |
0.11 |
0.44 |
0.99 |
1.77 |
2.77 |
3.99 |
5.39 |
| G455/30/50 |
45 |
5 |
73.4 |
U |
1912 |
478 |
212 |
119 |
76 |
53 |
39 |
| D |
0.15 |
0.61 |
1.38 |
2.45 |
3.83 |
5.56 |
7.62 |
| G455/30/100 |
70.4 |
C |
191 |
95 |
63 |
47 |
38 |
31 |
27 |
| D |
0.12 |
0.49 |
1.09 |
1.94 |
3.07 |
4.35 |
6.06 |
| G355/30/50 |
35 |
5 |
58.4 |
U |
1156 |
289 |
128 |
72 |
46 |
32 |
23 |
| D |
0.2 |
0.79 |
1.77 |
3.16 |
4.94 |
7.17 |
9.61 |
| G355/30/100 |
55.4 |
C |
115 |
57 |
38 |
28 |
23 |
19 |
16 |
| D |
0.16 |
0.62 |
1.4 |
2.46 |
3.97 |
5.7 |
7.69 |
| G255/30/50 |
25 |
5 |
43.4 |
U |
590 |
147 |
65 |
36 |
23 |
16 |
12 |
| D |
0.28 |
1.1 |
2.47 |
4.35 |
6.82 |
9.92 |
13.9 |
| G255/30/100 |
40.4 |
C |
59 |
29 |
19 |
14 |
11 |
9 |
8 |
| D |
0.22 |
0.87 |
1.98 |
3.39 |
5.25 |
7.5 |
10.71 |
Grating Type: Plain steel grating.
Bearing bar space optional size: 30mm, 35mm, 40mm, 45mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm.
Bearing bar thickness: 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm.
Cross bar size: ø5mm, ø6mm, ø7mm, ø8mm, ø12mm, ø10mm.
Cross bar space optional size: ø40mm, ø50mm, ø60mm, ø80mm, ø100mm.
Welding method: Machine forge welding or manual hand-made welding.
Usage: Flooring walkway, drain cover, stair treads grating.
Surface treatment: Black bare metal or hot dipped galvanized or powder coating.
Max size: 8M long
Grating Type: Serrated steel grating.
Bearing bar space optional size: 30mm, 35mm, 40mm, 45mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm.
Bearing bar thickness: 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm.
Cross bar size: ø5mm, ø6mm, ø7mm, ø8mm, ø12mm, ø10mm.
Cross bar space optional size: ø40mm, ø50mm, ø60mm, ø80mm, ø100mm.
Welding method: Machine forge welding or manual hand-made welding.
Usage: Flooring walkway, drain cover, stair treads grating.
Surface treatment: Black bare metal or hot dipped galvanized or powder coating.
Max size: 8M long
Grating Type: steel grating with checkered plate.
Bearing bar space optional size: 30mm, 35mm, 40mm, 45mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm.
Bearing bar thickness: 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm.
Cross bar size: ø5mm, ø6mm, ø7mm, ø8mm, ø12mm, ø10mm.
Cross bar space optional size: ø40mm, ø50mm, ø60mm, ø80mm, ø100mm.
Checkered plate thickness: 2mm, 3mm, 4mm, 5mm, 6mm.
Welding method: Machine forge welding or manual hand-made welding.
Usage: Flooring walkway, drain cover, stair treads grating.
Surface treatment: Black bare metal or hot dipped galvanized or powder coating.
| Swage-locked grating |
I type grating |
Press-locked grating |
Installation Instructions
Steel grating is installed with steel supports by clips as blow:
Hebei Weijia Metal Mesh Co., Ltd
A ISO 9001 approved factory of steel grating, frp grating, perforation panels, wire mesh products.
We are also able to do bending, cutting, welding and produce shpaed and finished products as customer's drawing.
Our main foreign markets are: USA, German, Russia, Malaysia, Indoneisa, Isreal, Phillipin, Singapore, Austrilia, Thiland, South Africa, Algeria...
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Contact Person: Antonia Lu /sales representive
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