Press Locked Heavy Duty Grating | 75 micron meter galvanised coating | 50X5mm Load Bar | HeslyGrating CHINA Factory
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 |
Materials & Finishes
Heavy duty gratings are manufactured in carbon steel and 300 series stainless steels. Carbon steel products are available bare (no finish), painted with manufacturers standard paint, or hot dip galvanized. Stainless steel products are available mill finish, commercially cleaned or electro-polished.
How to Install steel grating ?
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
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| I bar Steel Grating Factory | I shaped Bar Welded Grating |
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| Serrated I bar Steel Grating | Heavy Duty Bar Grating Factory |
Package and Delivery
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| China Steel Grating Factory | Welded Bar Grating Supplier |
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
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| 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 |
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Press Locked Heavy Duty Grating | 75 micron meter galvanised coating | 50X5mm Load Bar | HeslyGrating CHINA Factory Images
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