There aren't too many 6 foot high IBCs, but here's a machine that fills industrial chemicals into a stainless steel 500 gallon container as well as 55 gallon drums. The conveyor, scale and related equipment are built to handle loads up to 6,500 lbs.

This is a palletized drum filling operation with a pallet dispenser. The customer wanted to automatically discharge empty pallets onto the infeed conveyor to reduce labor and back strains. The empty drums are conveyed in and rolled onto the pallet without operators lifting anything.