KRM Ltd has introduced the new Kratos range of rigid and folding power harrows at LAMMA. With eight blades per metre the company say it is designed for effective and efficient seedbed preparation and is competitively priced.
KRM has paid particular attention to headstock strength and frame rigidity to protect the gear tray. Robustly constructed, the headstock incorporates side supports to the end of the gear tray, which are combined with a front 80 x 100mm box section. This produces a ‘chassis’ which isolates the gear tray from the extra loadings and stresses of a combination.
Each rotor is assembled individually in a cast rotor housing which contains two SKF taper bearings designed to handle the varying loads and shocks imposed by the rotating blades. Round rotor heads and large under gear tray clearance prevents stones being trapped so reducing stress in the gear train and gearbox.
The 18mm thick, 320m, 320mm length blades are designed to give excellent clod-breaking and they can be changed by quickly by removing a single pin. The heavy duty Pto gearbox is rated to 200 pto hp with folding models rated to 250 pto hp. Standard rotor speed is 360 rpm with options of 310 and 400 rpm.
A series of holes in the depth setting quadrants at each end of the gear tray allow precise setting of the working depth and a floating system means the power harrow can ride up over hidden obstacles independent of the rear roller.
It is available as a rigid power harrow in 3m, 3m50 and 4m00 widths with the hydraulic folding model in 4m, 5m and 6m widths which fold to a transport width of under 3m.
They are available from spring 2016 and prices range from £10,300 for the 3m rigid model and from £211,00 for the 4m hydraulic folding model.