The series hydraulic heavy-duty offset disc harrow is suitable for cleaning away stumps of plants before ploughing and for breaking and loosening clods after polughing on virgin land,the land with sticky and heavy soil and cultivated land.On cultivated land with a smooth、even tilth.It has the great capability of pulverizing and penetrating into the soil.All these satisfy the agricultural requirements of fine cultivation.The harrow is national series products,it has high degree of generalization、serialization、standardization.