ASTRA rotor harrows are used to loosen the soil and remove weeds. They can be used in all soil conditions, they are especially useful for very dry soil. The rotating stars used perfectly break the soil crust. The weeds are uprooted and stay on the surface as the soil is heavier and falls to the ground faster. Harrows can be used in almost all crops such as corn, sunflower, soybeans, etc. with a plant height of 10-25 cm. Driving speed 10-25 km / h. Rotating stars are made of special cast iron, mounted on rolling bearings. They are pivotally attached to a special 25×25 mm spring tine, which ensures adequate pressure. The high speed of the harrow's operation reduces costs and shortens the time of maintenance treatments.