Static screens are used as grid structure at the entrance of the wastewater treatment plant. They do not need electrical energy or propulsion system. The separation and cleaning of the grill takes place with its own flow of water. It works in accordance with continuous flow. Thanks to the V-shaped and overlapping screen design, while the water particles pass through the grate, the waste materials are collected into the waste bucket at the bottom with the flow of water. It is easy to maintain and operate as it has no moving and mechanical parts. 0.25 - 2 mm. It is produced in the gaps between. All are made of stainless steel.