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Ecomacchine - Model EM32A -Sub-Vertical Mechanical Bar Screen
The machine operation is controlled by a Pause-ON timer. If the water level upstream the mechanical bar screen should increase and exceed a pre-set threshold, a level measurer can start the machine, even during the pause phase. The machine stop and the beginning of the pause phase is possible only whether the cleaning rake has reached a pre-set position out of water and the material collected has been discharged.
The machine is operated by a geared motor which moves the cleaning rake. During the lowering phase, the cleaning rake is in open position and remains open as far as the lowest position is reached. When the cleaning rake reaches the bottom of the channel, the chain makes the rake get closer to the bar screen. So during the lifting phase, the rake cleans the bars and holds the screened material inside. Before the cleaning rake reaches the top position, a special device cleans its internal part and discharges the material outside, into a container or on a belt conveyor. At the top, a limit switch controls the cleaning rake operation.
