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Heavy Duty Grating

1. Heavy Duty Grating is hot dip galvanized, featured by the following advantages: saving materials, saving investment, easy installation, durable in use, light structure, no accumulation of dirt, good performance of ventilation, lighting, heat dissipation, anti-corrosive, anti-acid an alkali corrosion.

1. Heavy Duty Grating is hot dip galvanized, featured by the following advantages: saving materials, saving investment, easy installation, durable in use, light structure, no accumulation of dirt, good performance of ventilation, lighting, heat dissipation, anti-corrosive, anti-acid an alkali corrosion.

2. Grating panels are made in a wide range of apertures with alternative sections of bearing and transverse bar to meet loading, span and ventilation requirements. And it has wide application in many indutries, such as petroleum and chemical, port, power, transportation, papermaking, medicine, steel and iron, food, municipality, etc. 

3. 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. We implement a specially developed automated electric/hydraulic welding technique that combines high pressure and high temperature to permanently fuse the bearing and cross bars together. This creates a solid, permanent joint that can withstand repeated heavy loads. 

4. Backed by rich industry experience and market understanding, we are involved in offering a wide array of Heavy Duty Grating to our valued patrons. Quality assurance program starts from the design stage by ensuring that only quality materials are used. Welcome all the buyers around the world to contact with us.


Drainage steel grating cover Drainage ditch material 

Steel,Low carbon steel,stainless steel&Q235,A36,SS304,SS316L, S235JR

Surface treatment

Black, hot dipped galvanized, paint

Bearing bar width*thickness

25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm

Bearing bar pitch 

12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40, 41, 60mm.US  standard: 1"x3/16", 1 1/4"x3/16", 1   1/2"x3/16",  1"x 1/4",1 1/4"x 1/4", 1 1/2"x 1/4" etc.

Bearing bar shape

Plain Style Steel Grating, Serrated Style Steel Grating and I Bar Type Steel Grating.

Drainage steel grating cover drainage ditch standard

China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987, Australia: AS1657-1985,  Japan:   JJS.

Cross bar shape 

round, twisted, bar shape

Cross bar pitch 

38,50,76,100,101.6mm

Galvanizing standard 

US: ASTM (A123), CN: GB/T13912, UK: BS729

Market distribution

America45%,Europe26%,Middle east38%,Other place27%


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