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Stainless Steel Grating Trench Cover With Twisted Steel Bar Raw Material
Box grates a type of drainage trench cover with galvanized frame. The frame make it easy to install the box grating onto ground. There are hinges connecting the grate and frame.
Box grates
Plain steel grating can be made of carbon steel bar, aluminum steel bars and stainless steel bars. Cross bars of plain steel grating can be crimped bars, which are known as riveted steel gratings, flat square bars which are the press-locked gratings.
The round bars is welded to the bearing bar is welded steel grating and the bars are placed into the pre-holes on the bearing bars to form the swage-locked grating.
| Specifications of box grating | ||||
| Item | Clear opening (mm) | Grate size (mm) | Grate depth (mm) | Frame size (mm) |
| BG-01 | 250 × 250 | 300 × 300 | 25 | 30 × 30 × 3 |
| BG-02 | 300 × 300 | 350 × 350 | 25 | 30 × 30 × 5 |
| BG-03 | 300 × 300 | 365 × 365 | 32 | 40 × 40 × 5 |
| BG-04 | 450 × 450 | 500 × 445 | 25 | 30 × 30 × 5 |
| BG-05 | 450 × 450 | 525 × 445 | 40 | 45 × 45 × 5 |
| BG-06 | 600 × 600 | 650 × 595 | 25 | 30 × 30 × 5 |
| BG-07 | 600 × 600 | 695 × 595 | 50 | 55 × 55 × 5 |
| BG-08 | 750 × 750 | 845 × 745 | 50 | 55 × 55 × 5 |
| BG-09 | 900 × 600 | 895 × 650 | 25 | 30 × 30 × 5 |
| BG-10 | 900 × 600 | 895 × 695 | 50 | 55 × 55 × 5 |
| BG-11 | 900 × 900 | 895 × 995 | 50 | 55 × 55 × 5 |
| BG-12 | 900 × 900 | 895 × 980 | 75 | 85 × 75 × 6 |
Applications
Drainage trench grating is mainly used in the municipal engineering, factory, garage and residences to drain water and keep ground dry.