An ice bagging assembly and related method with a horizontal ice bag cassette, a pair of opposing ice bag ply graspers configured to move an empty ice bag from the horizontal ice bag cassette to a vertical position to receive cubed ice before it is sealed shut and dropped to an ice bag merchandiser. The opposing graspers may be configured as rotating wheels and may have a grasping sensor. The ice bag cassette may be slidably and tiltably supported for easy replacement of horizontal bags. A load sensor, optical or mechanical, may be associated with the ice hopper to sense how much ice has been put in each bag. A pair of angled guides may guide a hopper into a support frame for the system.