The invention relates to a haymaking machine (1) comprising an elongate main frame (2) which extends in a first direction and which has a front end (3) that is arranged to be attached to a pulling vehicle in order to move the haymaking machine in a customary direction of travel, at least one crop processing member (8) which is rotatable about an axis (9), and a supporting arm (7) which is connected to the at least one crop processing member and which is pivotably connected to the main frame about a hinge line (17), wherein the crop processing member, by the pivoting movement of the supporting arm about the hinge line, is at least displaceable between an operative position and a transport position, characterized in that the hinge line, when projected on a vertical plane and when projected on a horizontal plane, extends obliquely relative to the customary direction of travel.
