Hybrid bed forming machines, composed by a front power harrow and a rear adjustable counter rotating rotor with hydraulic drive. Two models build the polyformer series: PF60 (up to 70 HP) and PF100 (up to 110 HP) with a maximum working width of 200 cm. The hydraulic start-up of the rear counter rotor and its height setting, adapt these machine to the most various working conditions and cultivation depth (5 to 25 cm). These machines are also ideal for the post-harvesting bed renovation and for very soft and superficial jobs. Universal 3 point linkage Cat. 2 Single speed gearbox 540 rpm PTO, Compact low encumber machine, Front section composed by power harrow with 250 mm centre-to-centre rotors, Special Tine system bi-directional "ZEUS" ideal for a low power absorption, Tine length 300 mm, Rear section composed by crumbling rotor Ø360 mm with high resistance and wearing steel spikes, Rear rotor mounted on parallelogram adjustable in height, independent hydraulic plant for rear roller management from 0 to 350 rpm, Pair of front discs adjustable in width and height Ø 460 mm, Rear adjustable hood, Working depth adjustable by crank handles, Cardan shaft with shear bolt torque limiter SB type (1”3/8 Z=6 tractor side yoke)