| Customization: | Available |
|---|---|
| Structure: | Beam |
| Bench: | Single Stair |
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Our Longta stair tread is made of steel grating & widely used for many types of steel ladders. They are easy installation, strong structure, good water permeability & nice appearance.
Different nosing and size can all be supplied. We can fabricate as per your drawing.
Ningbo Jiulong Machinery Manufacturing Co., Ltd is the second largest steel grating manufacturer in China. We have 8 running lines with yearly capacity of 100, 000tons. Jiulong grating has exported to more than 30 countries. Choose Jiulong grating is your right decision!
| 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 |
| Country | Bar Grating Standard | Steel | Hot-dip Galvanizing |
| P.R.China | YB/T 4001.1-2019 | GB/T700-2006 | GB/T13912-2002 |
| U.S.America | ANSI NAAMM MBG 531-00 | ASTM (A36) | ASTM A123 |
| U.K.British | BS 4592-1987 | BS4360(43A) | BS729 |
| Australia | AS 1657-1985 | AS3697 | AS 1650 |
| Europe | EN 1090 | EN 10025:1993 | EN ISO 1461-1999 |
Manufacturing process:
1. What standard can NJMM's steel grating meet?
Re: NJMM can fabricate steel grating according 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 steel grating can NJMM fabricate?
Re: NJMM can fabricate any specification of steel grating available, both in inch description and metric description.
3. What are the most commonly stocked panel sizes?
Re: The most common standard panel sizes are 3'X24',3'X20', 1000X6000mm, 1000X6100mm etc.
4. What are the most commonly stocked bar sizes? (Height and thickness)
Re: The most common bars are 1''x1/8'', 1''x3/16'', 1''x3/16'', 1''x3/16'', and 25x3, 30x3, 32x3, 25x5, 32x5, 35x5, 38x5 etc.
5. What is the difference between serrated and non-serrated bar grating?
Re: Serration is done for slip resistance. It is grating which has the top surfaces of the bearing bars notched.
6. What finishes are offered on bar grating?
Re: Bar grating comes in untreated, painted, hot dip galvanized.
7. Does NJMM do OEM?
Re: Yes.
8. How to contact us?
Re: Send your more inquiry details as below, and click " send " now.
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