Painted Steel Grating
Metal bar grating can be defined as a series of metal bars
positioned vertically, placed an equal distance apart and joined by
cross members to form a rectangular or reticuline pattern.
Typically manufactured from mild carbon steel, 6000 series aluminum
and 300 series stainless steels, bar gratings are also available in
specialty metal alloys to suit nearly any application
The vertically positioned bars are designated as the bearing bars.
These bars range in size from 3/4"x1/8" for light pedestrian
traffic to 7"x1/2" for extreme vehicular loads. Typically, the
spacing of the bearing bars is indicated in sixteenths of an inch,
measured from the center of one bar to the center of the adjacent
bar. This center-to-center or "on center" spacing ranges from 7/16"
to 19/16"(1-3/16") on standard grating products. Standard gratings
are also available with wider spacings providing even greater open
area, but should not be specified without consulting the
manufacturer. Heavy Duty grating products are commonly manufactured
with bearing bar spacings ranging from 15/16" to 38/16"(2-3/8") on
The bars used to secure the position of the bearing bars are
commonly designated as the cross bars. Cross bar profiles vary
according to the method of assembly and material selected. As with
bearing bars, cross bar spacing is measured as "on center" spacing.
The customary cross bar spacing is 4" on center. On special order,
2" on center and other special spacings are also available.
HESLY Steel grating Limited manufactures three different types of
steel grating, each with different specifications and suitability.
Series 1: 30mm centres Suitable for heavy loading
Available in mild steel (forge welded or twistlock) and aluminium
Series 2: 40mm centres
Series 2 grating is available in both forge bar and twistlock. The
lightweight, economical design of the Series 2 grating makes it
perfect for walkways, fixed platforms, stairways and ladders.
Available in twistlock (mild steel and aluminium)
Series 3: 60mm centres
Series 3 grating is mainly used in the mining industry as it
minimises the build-up of spillages on the flooring. The openings
let small matter fall through while larger matter is caught on the
grating. Series 3 is a very lightweight design and is not
recommended for high-impact loads.
Load Bar Direction and spacing
It is important to check the direction of the load bars when
ordering steel grating as the load bar must take the weight on top
of the support to prevent collapse.
Metal Bar Grating Size:
The most common size bar thicknesses range from 20mm up to 50mm. If
a larger size is required please contact us.
|Contact HESLY for more details or FREE quote... ...|
Tel: +86-318-5182656 Mob: +86 188 3181 6606
A branch of HESLY METAL MESH GROUP LIMITED
Group Web: www.heslymetalmesh.com
Gratings Web: www.eon-steel-grating.com