Serrated When the gratings are used in particularly wet
environments or in places where extra non-slip properties are
required, serrated bars will be an advantage. The serrated process
involves carving a pattern in the bars to be serrated. This could
be in either the control or filler bars or in both control and
filler bars and bearing bars, depending on whether the grating
needs serrated in one or both directions. Serration is available in
two patterns: small serration and large serration * Small Serration Small serration is the most commonly used
serrated form, which is used for industrial walkway and staircase
gratings etc. and for heavy duty ramp gratings.
* Large Serration This type of serrated is very easy to clean and
therefore primarily used in industrial kitchens, canteens and in
other places with high hygiene requirements and requirements of
non-slip properties. Serrated bearing bars and control and filler
bars. | Item | Description | | Bearing Bar | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5,
50x5, 65x5, 75x6, 75x10,100x10mm etc;
I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc.
US standard: 1'x3/16', 1 1/4'x3/16', 1 1/2'x3/16',
1'x1/4', 1 1/4'x1/4', 1 1/2'x1/4', 1'x1/8', 1 1/4'x1/8',
1 1/2'x1/8' etc. | | Bearing Bar Pitch | 12.5, 15, 20, 25, 30, 32, 35, 38, 40, 60, 80mm etc.
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.
Noted:19-W-4 is most popular(19/16 inch x 4 inch opening=30x100mm
opening) | | Twisted Cross Bar Pitch | 50, 60, 76, 100, 120mm etc.
US standard: 2' & 4' etc. | | Surface Treatment | Black, self colour, hot dip galvanized, painted, spray coating | | Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
Serrated steel grating is the most popular of all grating types due
to its strength, cost-efficient production and ease of
installation. In addition to its high strength and light weight,
this type of grating also has non-slip characteristics, no sharp
edges and serrations are rolled on, to meet strict health and
safety requirements. Hot rolled serrations help stop lacerations if
someone falls on the grating. | | No. | Bearing Bar Pitch
(mm) | Standard Panel Width
(Bearing Bar Thickness 5mm) | Bearing Bar Number
(PC) | Remark | | 1 | 12.5 | 1005 | 81 | Pitch between the two sides are smaller than normal bearing bar
pitch. | | 2 | 15 | 1010 | 68 | | | 3 | 20 | 1010 | 51 | | | 4 | 22 | 995 | 46 | | | 5 | 23.85 | 1007 | 43 | | | 6 | 25 | 1005 | 41 | | | 7 | 30 | 995 | 34 | | | 8 | 30.16 | 1000 | 34 | | | 9 | 30.3 | 1005 | 34 | | | 10 | 32.5 | 1013 | 32 | | | 11 | 34.3 | 1000 | 30 | | | 12 | 35 | 1020 | 30 | | | 13 | 35.3 | 1029 | 30 | | | 14 | 40 | 1005 | 26 | | | 15 | 41 | 1030 | 26 | | | 16 | 41.4 | 999 | 25 | | | 17 | 50 | 1005 | 21 | | | 18 | 60 | 965 | 17 | | | 19 | 62 | 997 | 17 | |
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