Mechanical bar screen is an advanced solid-liquid separation unit. It is mainly applied for municipal, district WWTP pre-treatment stage, municipal rainwater and sewage pumping station, waterworks and cooling water from power plant. This unit has been widely applied in textile, printing and dyeing, food, aquatic product, paper-making, slaughter, tannery wastewater treatment process. It is an ideal unit for screening.

This unit adopts rotary type, several plow-shaped rake will be installed on the shaft, forming rake chains. According to the water flow volume, the bar screen will have different spaces or gaps installed on the front of the pump station or water treatment system. When the drive mechanism move from bottom to top with rake chains, the debris will be taken out from the rake chains, while the liquid will flow through screen gap. When the unit rotates into the top, the rake chain will revert its running direction, moving from top to bottom. The matters will fall off from the rake chains. When the rake rotates into the bottom from the opposite side, it will re-start for continuous running.