Serrated Steel Grating has better non-skid property & safety compared with plain grating.
Ningbo Jiulong Machinery Manufacturing Co., Ltd is the second largest steel grating manufacturer in China. We have 7 running lines with yearly capacity of 50, 000tons. Jiulong grating has exported to more than 30 countries.
Founded in 1992, covering an area of 25,000 square meters and with workshop area of 18,000 square meters, NJMM has advanced equipments, full-fledged technology as well as rich manufacturing and management experience in press-welded steel grating area for many years. NJMM is among the few leading manufacturers who have the entire production process from bearing bar to galvanized steel grating. Now NJMM has owned six International advanced auto-pressed welding machines, and the annual production capacity of steel grating, stair tread, trench cover, stanchion and guardrail is over 50,000 tons, of which more than 30,000 tons are for export. NJMM markets its products mainly in North America, South America, Europe, Oceania, Middle East , Southeast Asia, etc. Its marketing and service scope has covered all provinces in China and Longta gratings are widely applied to lots of renowned projects at home and abroad, such as sightseeing walkway of Sydney port, .Beijing Sports Games stadium, Chunxiao oil-gas filed of East China Sea, and Hangzhou bay bridge.
Being an advanced unit of environmental protection,NJMM had got ISO9001-2000 Quality Management System Certificate in the year 2001 and complete inspection facility.NJMM can provide high-quality products for customers. NJMM always persists the idea of expending scale to reduce the cost and striving for develepmentwith quality these years.Owing to superior location and as the leading role pladed in steel grating area in China.NJMM sincerely promises to all customers at home and abroad,"we will try to satisfy our customers with top quality,good service and most competitive price."
Features:
1) Bearing bar specification: 20 x 3 to 100 x 6
2) Bearing bar pitch: 12.5, 15, 30, 40, 60mm etc, also be according to client's requirement and 30, 40, 60mm are recommended
3) Cross bar pitch: 38, 50, 76, 100mm, also be according to client's requirement and 50, 100mm are recommended
4) Material: Mild steel or stainless steel
5) Surface treatment: Untreated, painted or hot-DIP galvanized
6) Steel Grating Standards:
A) China: YB/T4001-1998
B) USA: ANSI / NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1985
Packaging & Shipping
Company Profile
Manufacturing process:
Certifications
Our Advantages
Why Choose us(NJMM):
Establish Year: 1992
History in this field: 27 years
Main Products:
A. Steel Grating, including plain and serrated steel graing, size and specification can be produced according to customer's requirements.
B. Stair Tread: There are 8 types of treads distinguished by different nosing & way of installation.
C. Drainage Pit/Trench Cover
D. Railing & Stanchion
Total Staff: About 300, including 50 managers, 10 technical engineers.
Total Area: 25, 000 square meters and with workshop area of 18, 000 square meters.
Main Equipment: 8 press-welding machines
Management System: ISO9001: 2008
Advantage: High quality, Professional engineer, and Large production Capability
Brand: Long Ta
Honor: The largest steel grating manufacturer in China with government quality prize of Zhenhai district in the year 2007
NJMM is now supply to more than 30 countries and enjoying high reputation among all of our customers.
We will try our best to satisfy our customers with top quality, good service and most competitive price.
Our Mission
To provide the top quality products & best services with global expertise;
To build a harmonious environment for employees growing together with the company;
To contribute to the advancement of both industry & society.
FAQ
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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