The invention relates to a melt-processing system comprising a melt feeder for feeding melt to a processing head, in particular a granulation head. Said melt feeder is assigned, upstream of the processing head, a start-up valve for discharging the melt during a start-up and/or changeover phase. According to the invention, the melt channels of the divider head have at least one graduated cross-sectional widening in an inflow section, a cross-sectional shape widening from the outlet cross-section of the discharge channel, and an open mouth area leading out from the divider.