A curved blade mounted on the top of each arm and covered with a removable washable sleeve cleans the dome whilst the centre spring maintains a constant pressure of the blades against the Dome’s surface.
The Cleaning head consists of two arms mounted within a Hub. The base of each arm is profiled so that when vertical pressure is applied, it slides down the pivot slot and automatically spreads the arms open. This ensures that the Dome’s surface cannot be damaged by undue force when the cleaning head is being pushed up against it.