The safety grates is a safety feature for installation in manhole collars. It can be installed in all of our manhole covers.
Our grates have a mesh width of 20x20mm, a wire diameter of 4mm and are spot welded in a criss-cross pattern. These grates are then welded into a support ring with diameter of 12mm. The entire grate is placed on the collar loose and makes contact at the four support points. Optionally the grate can also be screwed to the collar.
The mesh width of the grates is freely selectable If other mesh sizes than 20x20mm are required, the grates are normally lasered from plate with a thickness of 4mm.
Standard design
- Material:1.4571
- Withfour supports (30 x 12 mm)
- Surface: unpolished, pickled
Options
- Material:1.4435, 1.4539, 1.4529, 1.4462, HC-22, HC-276, etc. (laser-cut from plate)
- Various mesh sizes (laser-cutfrom plate)
- Bolted version
- Grill secured with chain
- Grill partially foldable
- Withvarious limit- or proximity-switches