Chassis made in steel tube 150 x 100 x 8 mm. High resistance notched steel discs in the front and smooth steel discs in the rear. Disc shaft 40 mm supported on bearings, perfectly protected with lubricating grease. Scrappers with independent adjustement. Hydraulica adjustment of the disc angle cutting. Wheels for transportation and depth control (10,0/75x15.3 (10)), hydraulically operated. Trailer working draw bar with height adjustment, with springs and pads. Eraser disc.