A haymaking machine, particularly for windrowing harvested agricultural crops, comprises a frame (12) and least one rotary rake (52) connected to said frame. The rotary rake (52) comprises a rotor housing (80) and a shaft (68) extending through the rotor housing (80) and defining a rotation axis. A control cam arrangement having a cam track is accommodated in the rotor housing (80) and fixedly connected to the shaft (68). Tine arms (30) are connected to the cam track such that when the rotary rake (52) is driven in rotation, the tine arms (30) rotate by means of the cam track about their respective longitudinal axes for defining a predetermined depositing zone (86) of a path of s tines (50) for depositing of raked products. A wheel assembly (34) is fixedly attached to the shaft (68). The shaft (68), the control cam arrangement and the wheel assembly (34), being fixedly connected to one another, form a swivel assembly that can swivel about the rotation axis with respect to the frame (12). A windrowing deflector (56) or swath curtain (56) extends along the predetermined depositing zone (86). The windrowing deflector (56) is fixedly connected to said swivel assembly for maintaining the windrowing deflector (56) along the predetermined depositing zone (86) when the swivel assembly swivels about the rotation axis with respect to the frame (12).
