86-574-86521112
Jiulong Lake Industrail Zone, Zhenhai, Ningbo, Zhejiang, China
NingBo Jiulong Machinery Manufacturing Co., Ltd
The Steel Grating Pros For 20 years
Steel graing is a kind of open steel member wth its bearing bar & cross bar jonting at intersections either by welding or by locking.
Standard descriptions:
| No | Item | Description |
| 1 | Bearing bar | 25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm |
| 2 | Bear 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. |
| 3 | Cross bar pitch | 38,50,76,100,101.6mm |
| 4 | Material | Q235,A36,SS304 |
| 5 | Surface treatment | Black, hot dipped galvanising, paint |
| 6 | Standard | China: YB/T 4001.1-2007 |
| USA: ANSI/NAAMM(MBG531-88) | ||
| UK: BS4592-1987 | ||
| Australia: AS1657-1985 |
Type of steel grating:
1, Plain type:
One of the most wiely used gratings, available for flooring, sidewalk, dranage pit cover, stair tread, etc.
2, Serrated type:
Better Non-skid property & safety compared with plain grating
3, I-shape type
Lighter, more economical and practical comparing with plain grating
With 20 years experience, and 7 auto-press welding lines, we are now the largest steel grating manufacturer in China, and daily output over than 150 tons.
We have passed ISO 9001:2000
With 7auto-press welding lines, and our daily output can reach 150 tons
Fabricating. with 300 rich experienced employee, NJMM is the leading company of the steel grating on the market.
Our galvanization and its standard
We have a very complete internal quality control system
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.
Dear Customer,
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Best Wishes
April
Mobile: 0086-15168559221
TEL: 0086-574-86533805
