The invention relates to a material conveyor system (1) for a road paver and feeder. The material conveyor system (1) comprises a material hopper (2), which comprises a first and a second hopper half (3, 4), a main conveyor device (5), which defines a main conveyor flow and which runs between the first and the second hopper halves (3, 4), and conveying screws (6, 7), which define a transverse conveyor flow and which are arranged in the hopper halves (3, 4). The material conveyor system (1) is characterised in that the conveying screws (6, 7) can be operated independently of the main conveyor device. The independent operation of the conveying screws (6, 7) and the main conveyor device (5) makes it possible to achieve improved homogenisation of the mixing temperature of the paving material.