nederman ab600a revair ne66 industrial pneumatic vacuum cleanerA compressed air driven vacuum unit with a large suction capacity, equipped with a silo for stationary or semi mobile use, which is designed for the collection of dusty materials such as granulates, blasting grit and for the recovery of precious metals. The silo is standard equipped with a manually operated unloading valve. Optionally also available with counterweight or compressed air operated unloading valve, which enables automatic emptying of the