Designed with a solid four column support structure and using dual motor side belt technology, the AS closes all four top flaps and seals the top and bottom of the carton, using 60 PSI and 5 SCFM of air. Additional options available for the AS model include: Spare Parts Kit, High speed motor upgrade (up to 125 ft. per min.), VFD motor upgrade (up to 150+ ft. per min.), Locking heavy-duty casters, Additional safety guarding available, food grade 304 stainless steel, Compatible indexer: ARX Model.