Perforated Gratings are gratings that can operate in an endless cycle thanks to the chain gear system. Thanks to its compact design, space requirement is low. The perforated pore diameter is generally between 6-10 mm. It is ideal for the removal of solids over 10 mm. It is produced for use in deep channels with high water levels. All equipment that may require intervention is easily accessible above the water level. Solids held on the grill surface are carried to the top of the system. After the perforated pallets are emptied of their waste, they are constantly cleaned by washing in the opposite direction of movement. At the same time, cleaning efficiency can be increased by integrating a clean water spray system onto the surface of perforated pallets, depending on the operating needs.