Hot Dipped Galvanized Press Welded 5mm Heavy Duty Steel Grating for Drainage

Product Description

Trench Drain Cover Gratings are steel lattice panels formed with simple lines, secured with hinged lid and connection. Ideal replacement drainage covers for conventional cast iron materials. Suitable for light type and large span heavy loading environment. Widely used in sewage treatment system in urban roads, squares, gardens, docks, airports, parking lots, roads, railways, industrial engineering and other types of industrial buildings.


Features:
Appearance: simple lines. Silver exterior, modern trends.
Best drainage: leakage area of 83.3%, more than double the cast iron.
Hot-dip galvanizing: rust-proof and strong, maintenance and replacement.
Security design: box with hinged lid and connection, security, safe, easy to open.
Saving investment: large span. When overloaded, the lowest ratio of iron and saves replacement costs stolen, then crushed.
High strength: strength and toughness is much higher than cast iron, can be used for terminals, airports and other large span and heavy load environment.
Specifications and more: meet different environment and loading requirement. Span, the desired size and shape.




 

Popular Trench Cover and Draining Covering Gratings:

 
Heavy Duty Steel Plate Grating Trench Cover
Heavy Duty Steel Plate Grating Trench Covers are anti-corrosive, resisting to acid and alkali. Light weight, great load-bearing capacity, anti-slip and safe, easy installation, economical of materials, sturdy and durable, good ventilation, easy to clean and attractive appearance.










Steel Bar Grating, also known as Welded Steel Bar Grate is extremely strong and durable for all load bearing applications and is primarily used for pedestrian and light vehicle traffic. Steel Bar Grating is available in a variety of bearing bar spacing and thicknesses depending on applications and load requirements.There fare four types are available:  flat(plain), serrated for slip resistance, I shapped, serrated I shapped.


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Serrated steel bar grating has better slip resistance and can also be widely used in steel structure platforms, sidewalks and drainages, compared with plain style steel grating. We can design and manufacture standard steel grating, with a width of up to 1 meter, and in customized shapes per client requirements

Nr.	Item	Detailed Description
1	Bearing Bar	25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc; I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc
		US standard: 1' ' x3/16' ' , 1 1/4' ' x3/16' ' , 1 1/2' ' x3/16' ' , 1' ' x1/4' ' , 1 1/4' ' x1/4' ' , 1 1/2' ' x1/4' ' , 1' ' x1/8' ' , 1 1/4' ' x1/8' ' , 1 1/2' ' x1/8' ' etc
2	Bearing Bar Pitch	12.5, 15, 20, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc
		US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc
3	Twisted Cross Bar Pitch	38.1, 40 50, 60, 76, 80, 100, 101.6, 120mm, 2' ' & 4' ' etc
4	Steel  Grade	ASTM A36, A1011, A569, Q235, S235JR, S275JR, SS304, Mild steel & Low carbon steel, etc
5	Surface Treatment	Black, self colour, hot dip galvanized, painted, spray coating
6	Grating Style	Plain / Smooth, Serrated /teeth, I bar, serrated I bar
7	Grating Standard	China: YB/T 4001.1-2007,   USA: ANSI/NAAMM(MBG531-88),
		UK: BS4592-1987,   Australia: AS1657-1985, Japan: JIS

Established in 1992, Ningbo Jiulong Machinery Manufacturing Co., Ltd,   is the second largest steel grating manufacturer in China. We have 7 forge-welding production lines with an annual production capacity of 100, 000 meteric tons. Jiulong grating has exported to more than 50 countries. Choose Jiulong grating is your right decision!















1, What standard can NJMM grating meet?
NJMM can fabricate steel grating accoding to the standards in different counties, such as China: YB/T4001.1-2007, USA: ANSI/NAAMM(MBG531), UK: BS4592 and so on.
 
2, What specification of the steel grating can NJMM fabricate ?
NJMM can fabricate any specification of steel grating available, both in inch description and metric description.
 
3,What are the most commonly stocked panel size?
The most common standard panel sizes are 3'x24,' 3'x20', 1000x6000mm,1000x5800mm etc.
 
4, what are the most commonly stocked bar sizes(height and thickness)?
The most common bars are 1"x1/8", 1"x3/16'', 25x3, 30x3, 32x3, 25x5, 32x5, 35x5, 38x5 etc.
 
5,Is a deflection chart or load table available for bar grating?
You can learn it at our catalog.
 
6, Whatis the difference between serrated and non-serrated bar grating?
Serration is done for slip resistance. It is grating which has the top surfaces of the bearing bars notched.
 
7, What finishes are offered on bar grating?
Bar grating comes in untreated, painted, hot dip galvanized.
 
Does NJMM do OEM?
Yes.