Product Description
Weld Heavy Duty Steel Bar Grating is commonly used for floor trenches and sump covers exposed to heavy equipment traffic. It is used extensively through out mining, power generation, highways, airfields, and on truck terminal loading docks and ramps. It is suitable for large single span conditions or where grating must be support extreme
| Name: |
Presssure Locked Grating Heavy Duty Steel Grating Load 1200 Tons |
Surface Treatment: |
Hot Dipped Galvanized,Untreated,painted |
| Cross Bar Size: |
8mmx8mm |
Bearing Bar Pitch: |
30,40.customized Requirement |
| Cross Bar Pitch: |
100mm |
Color: |
Sliver/Black |
| Certification: |
ISO9001,CE |
Material: |
Low Carbon Steel,Stainless Steel |
High Light: heavy duty bar grating ,metal drain grates
Presssure Locked Grating Heavy Duty Steel Grating Load 1200 Tons
Steel Bar Grating with bearing bars thicker than 3/16" is considered to be "Heavy Duty" and carries the designation prefix "Type HD". Available bar thicknesses are 1/4" (6.4mm) , 5/16" (7.9mm) and 3/8" (9.5mm) in either plain or serrated surface. Standard depths range from 1" (25mm) up to 4" (102mm), although larger sizes are available upon reques
|
Bearing Bar Size mm
|
Weight kg/m2 |
Sec. Mod.per 305mm of width |
Span: Load |
Span:305 |
| |
30H-102 |
30H-51 |
|
|
|
|
25*6.4
|
47.4 |
51.3 |
6900 |
U |
C |
269 |
41 |
| 25*7.9 |
60.5 |
65.9 |
8816 |
U |
C |
344 |
52 |
| 25x9.5 |
68.4 |
72.7 |
10350 |
U |
C |
403 |
61 |
| 32x6.4 |
58.1 |
62.0 |
10780 |
U |
C |
420 |
64 |
| 32*7.9 |
74.7 |
80.1 |
13798 |
U |
C |
537 |
81 |
| 32*9.5 |
84 |
88.9 |
16170 |
U |
C |
630 |
95 |
| 38*6.4 |
68.4 |
72.7 |
15520 |
U |
C |
604 |
92 |
| 38*7.9 |
88.4 |
93.7 |
19861 |
U |
C |
774 |
117 |
| 38*9.5 |
100.1 |
105.0 |
23300 |
U |
C |
907 |
137 |
| 44*6.4 |
115.7 |
121.1 |
31700 |
U |
C |
823 |
| 44*7.9 |
102.5 |
107.9 |
27055 |
U |
C |
1053 |
| 44*9.5 |
115.7 |
121.1 |
31700 |
U |
C |
1234 |
| 51*6.4 |
89.3 |
94.7 |
27600 |
U |
C |
1075 |
| 51*7.9 |
116.2 |
121.6 |
35331 |
U |
C |
1376 |
| 64*6.4 |
110.3 |
116.2 |
34900 |
U |
C |
1680 |
| 64*7.9 |
144.0 |
149.4 |
55208 |
U |
C |
2150 |
| 64*9.5 |
162.6 |
169.4 |
64700 |
U |
C |
2518 |
| 76*6.4 |
131.3 |
137.7 |
62100 |
U |
C |
2418 |
| 76*7.9 |
144.0 |
149.4 |
55208 |
U |
C |
3096 |
| 76*9.5 |
194.3 |
201.2 |
93100 |
U |
C |
3628 |
| 89*6.4 |
152.3 |
159.2 |
84500 |
U |
C |
3292 |
| 89*7.9 |
199.2 |
204.6 |
108220 |
U |
C |
4214 |
| 89*9.5 |
255.6 |
233.4 |
126800 |
U |
C |
4938 |
| 102*6.4 |
173.3 |
193.8 |
110400 |
U |
C |
4300 |
| 102*7.9 |
227.0 |
232.4 |
141339 |
U |
C |
5568 |
| 102*9.5 |
273.9 |
279.3 |
165600 |
U |
C |
6450 |
Applications
1).Fencings for car-parks, buildings and roads; drainage trench covers and drainage pit covers for highways;
2).Flooring in various bridges such as railway bridge sidewalks, over-bridges across the street;
3).Rotation ways, channels, and platforms for pump rooms and engine rooms in various ships;
4).Platforms for oil extraction sites, car washing sites and air towers;
Size:The sizes 6000 x1000mm ,5800 x 1000mm are the common size to Aisan and Middle East markers.
The plain galvanized steel grating commonly used on bridge,refinery ,power plant,Sewage treatment plant and so on.
Company Profile
Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM)
Jiulong Machinery is recognized as a leader in the field of steel grating manufacturing. Since its inception in 1992, it served conventional energy sectors by providing innovatively intelligent machineries to upgrade thermal power stations. In 2002-2003, with an insight into prospective steel industry, Jiulong Machinery completed construction of the steel grating manufacturing center, which was the first auto electroforged welding steel grating production line in mainland China. Since then, Jiulong Machinery became the biggest exporter of this product line. Jiulong Machinery reached a peak in 2009, an export volume of 24,500 metric tons of which more than half were exported to the USA.
Over the past decades, Jiulong Machinery has always remaining in position as the number 1 manufacturer & exporter by continuously investing in technological innovation and strengthening operation management. The company now operates 7 electro forge welding production lines, with a substantial annual production capacity of 100,000 tons. Under the well-established total quality management system(ISO 9001-2000 accredited since 2001), each piece comes from Jiulong Machinery is made to exact specification and carefully checked before dispatching.
As so far, we've established marketing network in 35 countries worldwide. To enlarge market share, establishing business relations with more and more customers is one of our all-important goals. Please reach out if you have any inquiry or pending order in hand. Also, if you have any EPC for steel structure with application in oil rig platform, shipyard, bridgework, power plant, petrochemicals, iron &steel works, sewage treatment plant, etc, we can offer you graphic design and practical & economy solution.
Facility & Equipment:
Project Reference:
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: 7 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.
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