Steel Bar Grating, Trench Cover

Product Specifications

Prod Model:	Yd-Bg-04
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Type:	W-Welded Steel Grat,L-Pressure-Locked,C-Socket Wel
Bearing Bar Center:	15-30, 40, 60, 80, 90 mm with 30,40mm Spacing
Cross Bar Center:	6mm,8mm,10mm with 50, 100mm Spacing
Surface Treatmen:	G - Galvanized P - Painted U - Untreated

Product Description

Steel bar grating trench cover:

Type:	W--welded steel grating   L-- pressure-locked   C-- socket-welding
Bearing bar centers:	15-30, 40, 60, 80, 90 mm etc. with 30, 40 mm recommended.
Cross bar centers:	any greater than 30mm is ok. with 50, 100mm recommended.
Surface treatment:	G - galvanized P - painted U - untreated
Grating standard:	China:   YB/T4001.1-2007(YB/T4001.1-1998) Britain:   BS4592-1:1995 US:      ANSI/NAAMM(MBG531-93) Austrilia:  AS1657-1992
Marks:	Example: JA 325/30/100 WFG

Bearing bar centers at 20mm: 
This kind of fine mesh steel gratings have strong load ability and also can prevent the access of sundries of 18mm in diameter. This kind of gratings fit for pedestrian deck, walkway and ditch covers which require high security.
Bearing bar centers at 30mm: 
This kind of steel grating is the most commonly used in projects with American, Australian, Japan standards are available. This kind of gratings are featured well by heavyduty. Gratings with cross bar centers at 50mm can bear lateral impact well. This kind of steel grating fit for all kind of industrial platforms. 

Steel grating Production process:

Steel grating is made by bearing bar and cross bar according to the flat-steel weft arrangement, in high-pressure spacing on resistance welder welded by cutting, incision, opening, overlock process such as processing and into customer requirements finished products.

Features:

High intensity, light structure, strong grid bonding structure makes it with high load, the structure characteristics, facilitate hoisting light; Beautiful appearance, durable: Hot-dip galvanized surface treatment make it fairly good corrosion resistance, the surface luster beautiful; Ventilation, lighting, heat dissipation, explosion-proof, prevent slippery properties is good; Deposition prevention dirt.

Usage:

Widely used in petroleum chemical industry, power plant, water and sewage treatment plants, municipal engineering, environmental sanitation engineering fields of the platform, footpath, zhanqiao pier, ditch lid, manhole cover, ladders, fences, guardrail etc.

Material: Carbon steel or stainless steel

Surface Treatment: Hot-dipped galvanized, PVC coated, electro galvanized, plain and so on.

1. Light weight, great load-bearing capacity, non-slip and safe, easy installation,
2. Sturdy and durable, ventilated, easy to clean.
1) Light weight, great load-bearing capacity, non-slip and safe, easy installation, material-economic, sturdy and durable, ventilated, easy to clean and attractive appearance.
2) steel grating are widely used by various plants such as: Electric power, petroleum, chemical industry, metallurgy industry, machinery industry, shipbuilding, harbor, oceanographic engineering, building, paper mills, cement plant, medicine, spinning and weaving, foodstuff factory, transportation, municipal, administration, parking lot etc.
3) steel grating may be applied to platform, floor, walkway, stair treads, trestle, fencing, drainage, trench cover, pit cover, suspended ceiling, ventilates and light through facility, etc.
4) category: 1. Common steel flat grates, 2. I shape steel flat grates, 3. Serrated steel flat grating

Size:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1985
E) Japan: JJS.

Standard or non-standard, making as the customers drawings.

Packing: Naked or packing as the customers request.