Definition of Steel Grating:
Steel grating is a kind of open steel member with its bearing bars & cross bars jointing at their intersections either by welding or by locking.
General Information of Steel Grating:
- Bearing bar-A flat bar withstanding the main load is in consistent with the two adjacent bearing bars.
- Bearing bar pitch-The distance center to center of the two adjacent bearing bars.
- Cross bar-The connecting bars, made from twisted bar, round bar or flat bar, which extend across the bearing bars.
- Cross bar pitch-The distance center of the two adjacent cross bars.
- Length-The maximum dimension of a grating panel, measured parallel to the bearing bars, & in the same direction as the bearing bars.
- Width-The maximum dimension of a grating panel, measured perpendicular to the bearing bars, & in the same direction as the cross bars.
|Flooring||all kinds of Trench cover|
|Catwalk||Window and machinery safe guards|
|Stair tread||Ventilation screen|
|Vault bin floor||Suspended ceiling|
|Ramp||Drainage pit cover|
Types of Grating:
There are three kinds of steel gratings distinguished by different bearing bar types, The respective of features are as follows:
- Plain: the most widely used gratings, available for flooring sidewalk, all kinds of ditch cover, stair tread, etc.
- Serrated: best non-skid property & safety compared with plain grating.
- I-shape: lighter, Not substantially weaken the case of load capacity more economical and practical comparing with plain grating.
The Most Popular Specification of Steel Grating：
- Steel grating with 30mm bearing bar pitch is the most widely used in industrial area. Among the general series. It maintains the strongest resistance to impulsive force.
- Steel grating with 40mm bearing bar pitch is one of most economical & lightest types. It should be the best choice to customer on the occasion when the clear span is small.
- Steel grating with 60mm bearing bar pitch & 50mm cross bar pitch is developed specially for mining industry. As it can avoid the mineral splashing down on board, it's appointed to use in fabrication plant, transfer terminal & other ares of mining.
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