A manual/automatic bar screen cleaner mechanically cleans out bar screens with the help of a grab carriage having anti-wedging design. The grab carriage runs on guide channels which are fixed to the concrete walls below the floor level. The channels run from the sump base up to the top of the discharge point. Multiple channels can be cleaned by a mobile bar cleaner moving on rails.
The grab travels down in an open position. When it meets an obstruction or reaches the bottom of the chamber, it closes automatically (using a slack cable mechanism). It then travels upwards with the collected debris and discharges it on a conveyor or waste collector.
Necessary safety switches and alarms are provided to detect slackness of rope, open/close status of grab to enable automatic operation of the cleaner.
The mobile version of the cleaner can be stationed by means of proximity switches at the channel requiring cleaning.
There are three versions of cable operated bar screen cleaners: