Geiger^®

The Geiger® Cable-Operated Grab Cleaners/Bar Screens are typically installed in water intake systems as front-end coarse screens to remove bulky screenings and sediment material such as sand, gravel and debris to protect downstream equipment.

Geiger® Cable-Operated Grab Cleaners/Bar Screens are not only installed in new civil structures; they can also be easily retrofitted into existing water intake systems. Depending on technical requirements, there are stationary and traversing versions available; the traversing version can prove to be a more economical alternative.

The Cable-Operated Grab Cleaners typically have two independent drive mechanisms for lifting and pivoting purposes. The cleaner carriage with grab cleaner runs on guide ways and is operated using control and hoist ropes. These form a unit, meaning that during the clearing cycle the lifting force acts as a lever on the grab cleaner, forcing it to close. The lifting unit controls the descent and the cleaning motions of the cable-operated grab cleaner.

The pivoting drive unit controls the entering of the grab cleaner into the bar screen. In this way, the raking device can move deeply into the bar rack. The slack rope control system detects any blocking of the cleaner carriage or grab cleaner caused by floating matter, pebbles, or debris, and will interrupt the grab cleaner’s descent to the lower meshing point; hence, starting the cleaning cycle.

Deposits on the ground and bulky debris are removed layer by layer. In case of clogging or overloading, a special electro-mechanical safety control switches off the machine.