REX 510 disc harrows are used for undercutting and mixing stubble and harvest residues. The machine is ideally suited for shallow stubble cultivation in order to stimulate the germination of self-seeding, break capillarity and prepare for sowing. The machine leaves a crumbled, compacted soil behind with the worst conditions for the emergence of the plant. Two rows of discs with a diameter of Φ510 mm allow for effective undercutting and mixing of plant residues. Tubular roller Φ540 mm as standard and optional V-RING roller Φ600 mm. Additionally, the machine can be equipped with front teeth 20×590 mm or a front cutting shaft Φ380 mm. All this can be used in the hydrolift system that allows the operation of the front sections of the aggregate individually. The wide applications of this machine make it indispensable on the farm.