This option for the EconoMAX™ bulk bag filling system is used to inflate the bag prior to starting the filling process. By inflating the bag is will have pre-formed itself and eliminated any creases that may be in the bag.
Also if the bag has a liner it will form the liner to the bag. It is done using a 750 CFM electric blower that is operated by a motor starter and push button and an output from the PLC.
It also has an automatic function that operates within the filling sequence to inflate the bag for a preset amount of time prior to the start of product flow. The flow path for the blower is the annular opening between the outer diameter and the inner diameter of the fill spout which is the same opening as the dust removal path.
Typically this is isolated with the (IV option) which isolates the blower from dust collection during the bag inflation cycle then switches to the dust collection position after filling has begun.