A laying has a quill rotatable about an axis, and a pipe carried on the quill. The pipe has an entry end arranged to receive a product, and an intermediate portion defining a curved guide path leading from the entry and to a delivery end spaced radially from the quill axis and from which the product is discharged as a helical series of rings. A guide defines a helical extension of the guide path, and comprises a helical support plate projecting outwardly from the quill. A plurality of channel-shaped guide sections supported end to end on the support plate. The guide sections form a segmented radially outwardly facing helical trough surrounded by a cylindrical shroud that cooperates with the guide sections to definee radially and axially confined helical extension of the guide path.