A 4-metre wide, heavy-duty, hydraulically folding disc harrow from Polish agricultural machinery manufacturer ROL-EX. Category: Disc Harrows Price: $ 20,400 Required power: 150 hp Working width: 4m Working speed: 15 kph *Animated disc stakes (move randomly) *Animated side screens (adjusts to the ground) *Adjustment of working depth - Rollers (mouse control) *Setting working depth - support wheels (mouse control) *Configurations: -Front beam with reflectors -Rear boom with reflectors -Side screens -Springing comb -Support wheels