Nederman RBU units work continuously with high suction and a maintained efficiency. This makes these units the perfect vacuum source in larger systems where powerful underpressure is required to balance for large pressure drop. Complete system The RBU unit together with dust collector and control equipment, create a very effective base system where start and stop of the unit and filter cleaning are automatic. The system is very easy to use. It starts when the operator opens a valve for suction and stops when all valves are closed. An energy saving idling function is avilable as an option. The dust collector is equipped with a disposible filter which can either be cleaned with an air shock or via reversed flow. In both cases, the life span of the filter is 6-8000 operating hours.