The initial step of the water and wastewater treatment plants is the mechanical treatment. Screening equipment are the most important members of this pre-treatment process. Wastewater coming to the treatment plant will occasionally include wood, sticks, rags, and other debris in it. Before further processing, the wastewater must be screened to remove these materials, in order to protect the chemical and biological processes. Also pumps, pipelines are protected by means of these screens. Nevertheless; although screening is acknowledged along with the physical treatment; as a result of their compact construction and purposeful design; screening sewage equipment can be used in various aspects of many applications.