To constitute a transport cargo to be carried so as to be carried and also be dammed up in both directions of a carrying passage, that is, in both directions of a roller guide and/or a slide guide by improving a circulating conveyor.

In a circulating conveyor which has a roller guide and/or a slide guide and is formed in the shape of having at least a single accompanying body 3 to carry-dam up and/or position a transport cargo such as a spinning can by towing or propulsion, at least two separate roller guide or slide guide are arranged so as to carry-dam up and/or position the transport cargo.