Welded Heavy Duty Gratings are designed to service applications subject to heavy rolling and static loads such as highways, plant floors, loading docks, inlet covers and airports. Since these conditions can range from light-duty forklifts to heavy-duty truck or aircraft traffic, heavy duty gratings are manufactured in a wide range of bar sizes and spacings. 

Steel Bar Grating with bearing bars thicker than 3/16" is considered to be "Heavy Duty" and carries the designation prefix "Type HD". Available bar thicknesses are 1/4" (6.4mm) , 5/16" (7.9mm) and 3/8" (9.5mm) in either plain or serrated surface. Standard depths range from 1" (25mm) up to 4" (102mm), although larger sizes are available upon request.

 

Heavy-Duty Steel Gratings uses thicker <1/4"(6.3mm), 5/16"(8mm), 3/8"(10mm)> and deeper bearing bars. Heavy-Duty Welded Grating has the strength for heavy-duty load areas such as airfields, highways, industrial plants, truck and bus terminals, parking lots and railroad yards. Common uses are flooring, driveways, subway and tunnel ventilation grilles, curb inlet grates, ramps, docks, etc.

 

Standard heavy-duty bar grating is resistance-welded for durability, strength and safety using an automated electric/hydraulic welding process. High temperatures, combined with high pressure, fuse the bearing bars and cross bars together to form a permanent joint.

Steel grating standards:

Grating Standard	Material Standard	HDG standard
China: YB/T 4001.1-2007 USA: ANSI/NAAMM(MBG531-88) UK: BS 4592-1987 Australia: AS 1657-1985	China: GB 700-88 UK: BS 4360:1990 USA: ASTM A36/A36M-96 AUSTRALIA: AS 3679	CHINA: GB/T13912-2002 UK: BS729 USA: ASTM A123/A123M-97a AUSTRALIA: AS 1650

1.Welding & using saddle clips are two ways for installation of grating. The welding is suitable for those places where there is no need to move or dismental,for instance,the flooring around the machines. However,using saddle clips are featuring in easy installation & saving zinc layer.

 

2.Regarding welding installation, angle wolding would used at the first bearing bar of every corner,which the welding length is no less than 20mm,&the height is no less than 3mm.

 

3.Saddle clip composed of a top plate,a hold down & a M8 bolt, is suitable for all kinds of steel gratings installation.

 

4.Regarding saddle clip installation, at laest four sets of saddle clips would be used in one pc grating.It would be better using more in the staddle for those gratings with a bigger span.

Common Specifications Sheet - HESLY Steel Grating

Series	Pitch of Bearing bar	Cross-bar Pitch	Specification of bearing bar load width×thickness
			20×3	25×3	32×3	40×3	20×5	25×5
1	30	100	G203/30/100	G253/30/100	G323/30/100	G403/30/100	G205/30/100	G255/30/100
		50	G203/30/50	G253/30/50	G323/30/50	G403/30/50	G205/30/50	G255/30/50
2	40	100	G203/40/100	G253/40/100	G323/40/100	G403/40/100	G205/40/100	G255/40/100
		50	G203/40/50	G253/40/50	G323/40/50	G403/40/50	G205/40/50	G255/40/50
3	60	50		G253/60/50	G253/60/50	G403/60/50	G205/60/50	G255/60/50
Series	Pitch of Bearing bar	Cross-bar Pitch	Specification of bearing bar load width×thickness
			32×5	40×5	45×5	50×5	55×5	60×5
1	30	100	G325/30/100	G405/30/100	G455/30/100	G505/30/100	G555/30/100	G605/30/100
		50	G325/30/50	G405/30/50	G455/30/50	G505/30/50	G555/30/50	G605/30/50
2	40	100	G325/40/100	G405/40/100	G455/40/100	G505/40/100	G555/40/100	G605/40/100
		50	G325/40/50	G405/40/50	G455/40/50	G505/40/50	G555/40/50	G605/40/50
3	60	50	G325/60/50	G405/60/50	G455/60/50	G505/60/50	G555/60/50	G605/60/50

 

Reference Photos - Stainless Steel Grating

I bar Steel Grating Factory	I shaped Bar Welded Grating
Serrated I bar Steel Grating	Heavy Duty Bar Grating Factory

 

Package and Delivery

How To Order Steel Grating ?

Just Let us know below the information. Then we can give a formal offer accordingly. Bearing Bar Size: Depth & Thickness  Pitch Of The Bearing Bars Cross Bar / Square twised Bar Size Pitch Of The Cross Bars Surface: Flat OR serrated Dimension (span X Width) Banding OR no Banding Finish: Galvanised / PVDF / Powder coated QUANTITY

 

Carbon Steel / Stainless Steel / FRP grating factory sales
	Hesly Grating Industries - CHINA Tel: +86-318-7888890 Mob: +86 188 3181 6606 Whatsapp: +86 188 3181 6606 Email: grating@hesly-group.com www.heslygrating.com