(Place Of Origin:Shandong China (mainland) Brand Name:Yl )
  • metal steel grating trench drain cover
  • Price:USD 1.00
  • Min. Order :2 Metric Ton
  • Region:China
  • Contact Now
Product Detail
Quick Details
  • Place Of Origin:Shandong China (mainland)
  • Brand Name:Yl
  • Model Number:Yl65238
  • Material:Steel,carbon Steel
  • Grating Standards:Yb/t4001, Ansi/naamm-mbg531, Bs4592, As1657
  • Surface Treatment:Hot Rolled Galvanized
  • Usage:Outdoor
  • Certification:Iso9001
  • Grating Bar Type:Metal Steel Grating Trench Drain Cover
metal steel grating trench drain cover
*full range in type&dimension
*largest production capability
*production speed



1>High strength and light structure


2>Powerful anti-corrosion,durable and long working life


3>Beautiful appearance,bright surface


4>No dirt-rain-snow deposit,automatic cleaning,easy maintenance


5>Good ventilation,day-lighting,heat-dispersing,resistant to sliding and explosion.


6>Easy installation and disassembly





1.Bearing bar&cross bar steel grade is Q235 which's in line with GB/T700.Other material can also be used afternegotiation.




2.Hot-rolled flat bar,hot-rolled strip or cold-rolled strip silt by slitting shears are available for bearing bar.




3.Tolerance for the size of hot-rolled flat bar should be in according with the standard of YB/T4001.1-2007.




4.Hot-rolled flat bar,hot-rolled strip or cold-rolled strip silt by slitting shears are avallable for serrated bar.There would be 5 teeth at least within 100mm length.




5.The size of section & processional moment of section should be in according with the standed of YB/T4001.1-2007.



 Bearing bar centers at 20mm: 

 This kind of fine mesh steel gratings have strong 

 load ability and also can prevent the access of 

 sundries of 18mm in diameter. This kind of gratings 

 fit for pedestrian deck, walkway and ditch covers 

 which require high security

  Notes: common welding standard: single-side full welding every 6 bearing bars

 Bearing bar centers at 30mm: 

 This kind of steel grating is the most commonly

 used in projects with American, Australian, Japan

 standards are available. This kind of gratings are

 featured well by heavyduty, well resistance of 

 strong impact on surface. this kind of steel 

 grating fit for all kind of industrial platforms.


 Notes: common welding standard: single- side full welding every 5 bearing bars

 Bearing bar centers at 40mm: 

 light grating and very economical. This 

 kind of gratings fit for fixed platforms, 

 walkway, and stair treads and British, 

 German,French and Japanese standards 

 are available. The products most commonly

 used for Belt corridor, storage shelf,Attic 

 panel, trestle, guardrail, sunshade gate, etc.

 notes: common welding standard: single- side full welding every 4 bearing bars

 Bearing bar centers at 60mm: 

 This kind of steel gratings are especially 

 used for mining industries. It can solve 

 the problem that mineral splashing down 

 and stacks on the walkway. This product

 usually used for mineral miningand 

 processing and it is the best choice for 

 workshop, meeting room and suspended 

 ceiling of stadium in terms of it's light weight.

 notes:common welding standard: single-  side full welding every 3 bearing bars



We have the automatic machine to make steel grating  with largest production capability and high production speed

Twist steel cold dial the straightening machine

Cross rod length is 1.2m




Steel grid plate automatic cutting bar machine

flat style

I bar style

Serrated style



Steel grid plate pressure


Any length you want








Welding of ends bar





Our projects


This is our project of steel grating ,it can be used to many aspects just like:
platformtrestletrendfenceequipment walk way
pavementchannel overmanhole covertrash rackmentance platform
foot bridgescaffoldladderstorage shelfmarine platfor


Installation of steel grating:

1.Welding & using saddle clips are two ways for installation of grating. The welding is suitable for those places where there is no need to move or dismental,for instance,the flooring around the machines. However,using saddle clips are featuring in easy installation & saving zinc layer.

2.Regarding welding installation, angle wolding would used at the first bearing bar of every corner,which the welding length is no less than 20mm,&the height is no less than 3mm.

3.Saddle clip composed of a top plate,a hold down & a M8 bolt, is suitable for all kinds of steel gratings installation.

4.Regarding saddle clip installation, at laest four sets of saddle clips would be used in one pc grating.It would be better using more in the staddle for those gratings with a bigger span.










Qingdao Zhizhen Steel Grating Co.,Ltd is the subsidiary of Qingdao Yili Steel Structure Co.,Ltd,havving anumber of higly qualified technical and management personneladvanced management and strong technical force




Steel grating standards:
A) China: YB/T4001-2007
C) UK: BS4592-1987
D) Australia: AS1657-1985
E) Japan: JJS


How to order

1.Bearing Bars center to center and cross bars center to center

2.Depth & thickness of bearing bars

3.Surface:serrated or smooth

4.Dimensions of area

5.Span(direction of bearing bars)

6.Finish: mill,hot dip galvanized

7.banding or no banding


Verified Information This information was Verified by Bureau Veritas and is valid for the following period: 2012/09/14 --- 2013/09/14 The information below covers both the Gold Supplier and its related companies, which are defined according to china laws and regulations, and which will also be clearly displayed in the full report >> Production Capacity:
Product Line Name Production Line Capacity Actual Units Produced(Previous Year)
Steel Structure 1,000 Tons/Month 6,000 Tons
Export Market Distribution:
Market Revenue(Previous Year) Total Revenue (%)
Eastern Europe USD 1,000,000 14.71
Africa USD 800,000 11.76
Oceania USD 120,000 1.76
Western Europe USD 1,100,000 16.18
Northern Europe USD 180,000 2.65
Domestic Market USD 3,600,000 52.94
Production Machinery:
Machine Name Brand & Model No. Quantity Number of Year(s) Used Condition
Rlaner-type Auto Welding Machine LHA 1 9.0 Acceptable
CNC Drilling Machine BQ750 1 1.5 Acceptable
CNC Drilling Plate Machine CDMP2012 1 2.0 Acceptable
C/Z Type Steel Tile-shaping Machine BMY-5 1 9.0 Acceptable
Polishing Machine No Information 1 9.0 Acceptable
Straight Flame Cutting Machine CG-4000A 1 9.0 Acceptable
CNC Flame Plasma Cutting Machine CNC-6000 1 0.5 Acceptable
H-Beam Assembling Machine Z12 1 9.0 Acceptable
Production Flow:
  • Cutting 1
  • Cutting 2
  • Assembling 1
  • Welding 1
  • Welding 2
  • Drilling
  • Bending
  • Assembling 2
  • Welding 3
  • Polishing
  • Painting
Certified Picture Certification Name Certified By Certificate No. Product Name & Model No. Available Date --- Expired Date
ISO9001:2008 Shandong Seatone Quality Certification Co., Ltd., CNAS 10410Q205226R1M Steel Structure (Light Steel Structure), Steel Grating Production, Installation and Service 2010/06/22 --- 2013/06/21
Testing Report:
Report Picture Report Name Report By Product Name & Model No. Report Date
Test Report No. 52 Institute of China Ordnance Industries Group Yantai Branch, Physical Testing and Chemical Analysis Center of Metallic of China Ordnance Industry, CNAS Steel Beams 2012/01/09
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