We take pleasure in an exceptionally excellent status between our buyers for Trench Cover Grating, Galvanized Steel Stair Treads, Serrated Bar Grating. We fully protect the rights and interests of employees, continuously improve employee satisfaction, enhance corporate cohesion, and pursue the harmonious coexistence and sustainable development of employees, shareholders, customers and society. We firmly believe that the continuous introduction of advanced science and technology and management methods is the guarantee for the prosperity of the enterprise. We aim to meet market demand, continuously improve the automation level of production technology and production equipment, and strengthen market management awareness and service concepts.
Trench cover grating is the simplest and most economical type of steel gratings. It is used for the ground of sidewalks, roadways, courtyards, or buildings, as trench grate covers for water trenches, pipeline trenches, underground passages, air wells, lighting wells, inspection wells, etc. The ditch cover steel grating consists of a fixed frame and a movable steel bar grating cover, and we can equip it with a fastening mechanism or anti-theft device as required.
Product Name | Trench Cover Steel Grating |
Material | Q235 low carbon steel |
Model | G303/30/100; G323/30/100, G305/30/100; G325/30/100; G405/30/100 |
Flat Steel Spacing | 30mm, 40mm, 60mm |
Cross Bar Spacing | 50mm/100mm |
Surface Treatment | Hot dip galvanizing, cold galvanizing (electroplating) |
Load Capacity | According to different specifications |
Applications | Used in municipal roads, garden construction, residential quarters, schools, stadiums and other places. |

Technical Parameters
Item | Load Grade | Maximum Weight of Vehicle (kg) | Single Rear Wheel Load (kN) | Wheel Press Area (mm) |
SGDD-01 | T-25 | 25000 | 100 | 200 × 500 |
SGDD-02 | T-20 | 20000 | 80 | 200 × 500 |
SGDD-03 | T-14 | 14000 | 56 | 200 × 500 |
SGDD-04 | T-6 | 6000 | 24 | 200 × 240 |
SGDD-05 | T-2 | 2000 | 8 | 200 × 160 |
Note: In the table, T-2, T-6, T-14, T-20, T-25, etc. indicate that vehicles with a total weight of 2000kg, 6000kg, 14000kg, 20000kg, 25000kg, etc. are allowed to pass.
Product Advantages
1.The trench cover has the advantages of light weight, good bearing capacity, impact resistance, not easy to bend, large displacement, beautiful and durable, and has the incomparable advantages of cast iron cover.
2.The special production process and high anti-corrosion and anti-rust technology selected for the product have enabled it to obtain a long service life.
3.It adopts hinge connection or hook connection, which is easy to open and has anti-theft function.

Main Applications
* With angle steel frame
* Municipal trench cover
* Collection well cover
* Angle steel frame bar grating trench cover
* Anti-theft well cover
* Stainless steel trench cover
* Bar grating trench cover

Our merchandise are broadly identified and trusted by end users and can satisfy continually developing economic and social requires for Factory Directly Supplying Ductile Iron Rectangle Trench Manhole Cover for Garage, Road, Garden and Sidewalk, Airport. We attach importance to every process of production, every design of technology and every detail of management, and we boldly take a new path and explore a new method. We have a team of staff with serious working attitude, solid business foundation, strong sense of unity and cooperation, and excellent professional and technical level.
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