The invention concerns a haying machine, in particular a hay tedder, comprising a frame (1) bearing several rotors (2). Said machine is characterized in that the frame (1) comprises a central structure (8) not provided with rotors (2) and two lateral structures (9 and 10) bearing all the rotors (2) and in that the central structure (8) consists of a front part (13) equipped with wheels (39) and of a rear part (14) which is articulated on said front part (13) and bears substantially vertical axes (11 and 12) whereon are articulated the lateral structures (9 and 10) and about which said lateral structures are mobile forward with all the rotors (2) for transport.
